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Articles de revues sur le sujet « Right PPC »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 31 juillet 2025

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1

He, Xiaofei, Yue Lan, Guangqing Xu, et al. "Frontoparietal regions may become hypoactive after intermittent theta burst stimulation over the contralateral homologous cortex in humans." Journal of Neurophysiology 110, no. 12 (2013): 2849–56. http://dx.doi.org/10.1152/jn.00369.2013.

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Brain injury to the dorsal frontoparietal networks, including the posterior parietal cortex (PPC) and dorsolateral prefrontal cortex (DLPFC), commonly cause spatial neglect. However, the interaction of these different regions in spatial attention is unclear. The aim of the present study was to investigate whether hyperexcitable neural networks can cause an abnormal interhemispheric inhibition. The Attention Network Test was used to test subjects following intermittent theta burst stimulation (iTBS) to the left or right frontoparietal networks. During the Attention Network Test task, all subjec

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Hartmann, Matthias, Sarah Singer, Branislav Savic, René M. Müri, and Fred W. Mast. "Anodal High-definition Transcranial Direct Current Stimulation over the Posterior Parietal Cortex Modulates Approximate Mental Arithmetic." Journal of Cognitive Neuroscience 32, no. 5 (2020): 862–76. http://dx.doi.org/10.1162/jocn_a_01514.

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The representation and processing of numerosity is a crucial cognitive capacity. Converging evidence points to the posterior parietal cortex (PPC) as primary “number” region. However, the exact role of the left and right PPC for different types of numerical and arithmetic tasks remains controversial. In this study, we used high-definition transcranial direct current stimulation (HD-tDCS) to further investigate the causal involvement of the PPC during approximative, nonsymbolic mental arithmetic. Eighteen healthy participants received three sessions of anodal HD-tDCS at 1-week intervals in coun

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Collignon, Olivier, Marco Davare, Anne G. De Volder, Colline Poirier, Etienne Olivier, and Claude Veraart. "Time-course of Posterior Parietal and Occipital Cortex Contribution to Sound Localization." Journal of Cognitive Neuroscience 20, no. 8 (2008): 1454–63. http://dx.doi.org/10.1162/jocn.2008.20102.

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It has been suggested that both the posterior parietal cortex (PPC) and the extrastriate occipital cortex (OC) participate in the spatial processing of sounds. However, the precise time-course of their contribution remains unknown, which is of particular interest, considering that it could give new insights into the mechanisms underlying auditory space perception. To address this issue, we have used event-related transcranial magnetic stimulation (TMS) to induce virtual lesions of either the right PPC or right OC at different delays in subjects performing a sound lateralization task. Our resul

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Schintu, Selene, Elisa Martín-Arévalo, Michael Vesia, et al. "Paired-Pulse Parietal-Motor Stimulation Differentially Modulates Corticospinal Excitability across Hemispheres When Combined with Prism Adaptation." Neural Plasticity 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/5716179.

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Rightward prism adaptation ameliorates neglect symptoms while leftward prism adaptation (LPA) induces neglect-like biases in healthy individuals. Similarly, inhibitory repetitive transcranial magnetic stimulation (rTMS) on the right posterior parietal cortex (PPC) induces neglect-like behavior, whereas on the left PPC it ameliorates neglect symptoms and normalizes hyperexcitability of left hemisphere parietal-motor (PPC-M1) connectivity. Based on this analogy we hypothesized that LPA increases PPC-M1 excitability in the left hemisphere and decreases it in the right one. In an attempt to shed s

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Mevorach, Carmel, Glyn W. Humphreys, and Lilach Shalev. "Reflexive and Preparatory Selection and Suppression of Salient Information in the Right and Left Posterior Parietal Cortex." Journal of Cognitive Neuroscience 21, no. 6 (2009): 1204–14. http://dx.doi.org/10.1162/jocn.2009.21088.

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Attentional cues can trigger activity in the parietal cortex in anticipation of visual displays, and this activity may, in turn, induce changes in other areas of the visual cortex, hence, implementing attentional selection. In a recent TMS study [Mevorach, C., Humphreys, G. W., & Shalev, L. Opposite biases in salience-based selection for the left and right posterior parietal cortex. Nature Neuroscience, 9, 740–742, 2006b], it was shown that the posterior parietal cortex (PPC) can utilize the relative saliency (a nonspatial property) of a target and a distractor to bias visual selection. Fu

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Maggio, C. Di, C. Massullo, C. Imperatori, et al. "Triple network in adolescents with borderline personality disorder, early traumatic experiences and dissociative symptoms: An eloreta study." European Psychiatry 64, S1 (2021): S140. http://dx.doi.org/10.1192/j.eurpsy.2021.384.

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IntroductionTriple Network Model (TNM), which considers the dynamic interaction between Default Mode (DMN), Salience (SN), and Central Executive (CEN) networks, explains clinical features in mental disorders from a neurophysiological perspective. Some studies highlight the increased connectivity in TNM in adults with Borderline Personality Disorder (BPD), but little is known about adolescents.ObjectivesThe aim of our preliminary study was to investigate TN functional connectivity (FC) in BPD adolescents with a history of traumatic experiences, and its correlation with dissociative symptoms.Met

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Murphy, Aidan P., David A. Leopold, Glyn W. Humphreys, and Andrew E. Welchman. "Lesions to right posterior parietal cortex impair visual depth perception from disparity but not motion cues." Philosophical Transactions of the Royal Society B: Biological Sciences 371, no. 1697 (2016): 20150263. http://dx.doi.org/10.1098/rstb.2015.0263.

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The posterior parietal cortex (PPC) is understood to be active when observers perceive three-dimensional (3D) structure. However, it is not clear how central this activity is in the construction of 3D spatial representations. Here, we examine whether PPC is essential for two aspects of visual depth perception by testing patients with lesions affecting this region. First, we measured subjects' ability to discriminate depth structure in various 3D surfaces and objects using binocular disparity. Patients with lesions to right PPC ( N = 3) exhibited marked perceptual deficits on these tasks, where

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Matsuda, Masayuki, Yoshiro Kai, Suzuka Harada, Kentaro Suzuki, Shigeto Hontsu, and Shigeo Muro. "Duodenal Metastasis of Pulmonary Pleomorphic Carcinoma: A Case Report." Case Reports in Oncology 14, no. 3 (2021): 1511–15. http://dx.doi.org/10.1159/000519664.

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Pulmonary pleomorphic carcinoma (PPC) is a rare subtype of lung sarcomatoid carcinoma that has a poor prognosis, and no standard therapy has been established. Here, we report the case of a 74-year-old man with PCC who showed rare duodenal metastasis. He was referred to our hospital with a mass shadow in the right lung. The patient was diagnosed with PPC clinical stage II B on the basis of immunohistochemical staining from bronchoscopy, and the tumor proportion score of programmed death-ligand 1 was 80%. He did not want any treatment. A year and a half later, progressive anemia was detected. Th

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Magis-Weinberg, Lucía, Ruud Custers, and Iroise Dumontheil. "Rewards Enhance Proactive and Reactive Control in Adolescence and Adulthood." Social Cognitive and Affective Neuroscience 14, no. 11 (2019): 1219–32. http://dx.doi.org/10.1093/scan/nsz093.

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Abstract Cognitive control allows the coordination of cognitive processes to achieve goals. Control may be sustained in anticipation of goal-relevant cues (proactive control) or transient in response to the cues themselves (reactive control). Adolescents typically exhibit a more reactive pattern than adults in the absence of incentives. We investigated how reward modulates cognitive control engagement in a letter-array working memory (WM) task in 30 adolescents (12–17 years) and 20 adults (23–30 years) using a mixed block- and event-related functional magnetic resonance imaging design. After a

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Rounis, Elisabeth, Kielan Yarrow, and John C. Rothwell. "Effects of rTMS Conditioning over the Fronto-parietal Network on Motor versus Visual Attention." Journal of Cognitive Neuroscience 19, no. 3 (2007): 513–24. http://dx.doi.org/10.1162/jocn.2007.19.3.513.

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Many studies have shown that visuospatial orienting attention depends on a network of frontal and parietal areas in the right hemisphere. Rushworth et al. [Rushworth, M. F., Krams, M., & Passingham, R. E. The attentional role of the left parietal cortex: The distinct lateralization and localization of motor attention in the human brain. Journal of Cognitive Neuroscience, 13, 698–710, 2001] have recently provided evidence for a left-lateralized network of parietal areas involved in motor attention. Using two variants of a cued reaction time (RT) task, we set out to investigate whether high-

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Duecker, Felix, Teresa Schuhmann, Nina Bien, Christianne Jacobs, and Alexander T. Sack. "Moving Beyond Attentional Biases: Shifting the Interhemispheric Balance between Left and Right Posterior Parietal Cortex Modulates Attentional Control Processes." Journal of Cognitive Neuroscience 29, no. 7 (2017): 1267–78. http://dx.doi.org/10.1162/jocn_a_01119.

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The concept of interhemispheric competition has been very influential in attention research, and the occurrence of biased attention due to an imbalance in posterior parietal cortex (PPC) is well documented. In this context, the vast majority of studies have assessed attentional performance with tasks that did not include an explicit experimental manipulation of attention, and, as a consequence, it remains largely unknown how these findings relate to core attentional constructs such as endogenous and exogenous control and spatial orienting and reorienting. We here addressed this open question b

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Riemer, Martin, Darren Rhodes, and Thomas Wolbers. "Systematic Underreproduction of Time Is Independent of Judgment Certainty." Neural Plasticity 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/6890674.

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We recently proposed that systematic underreproduction of time is caused by a general judgment bias towards earlier responses, instead of reflecting a genuine misperception of temporal intervals. Here we tested whether this bias can be explained by the uncertainty associated with temporal judgments. We applied transcranial magnetic stimulation (TMS) to inhibit neuronal processes in the right posterior parietal cortex (PPC) and tested its effects on time discrimination and reproduction tasks. The results show increased certainty for discriminative time judgments after PPC inhibition. They sugge

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Nakayama, Takashin, Kohei Hashimoto, Takeshi Kiriyama, and Keita Hirano. "Optimal imaging conditions for the diagnosis of pleuroperitoneal communication." BMJ Case Reports 12, no. 3 (2019): e228940. http://dx.doi.org/10.1136/bcr-2018-228940.

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A 70-year-old woman with end-stage renal disease caused by a polycystic kidney disease developed massive right-sided pleural effusion 10 days after the initiation of peritoneal dialysis (PD). Although pleuroperitoneal communication (PPC) was suspected, computed tomographic peritoneography on usual breath holding did not show leakage. Therefore, we instructed her to strain with maximal breathing, which caused a jet of contrast material to stream from the peritoneal cavity into the right pleural cavity and allowed the identification of the exact site of the diaphragm defect. Following the thorac

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Vesia, Michael, Jachin A. Monteon, Lauren E. Sergio, and J. D. Crawford. "Hemispheric Asymmetry in Memory-Guided Pointing During Single-Pulse Transcranial Magnetic Stimulation of Human Parietal Cortex." Journal of Neurophysiology 96, no. 6 (2006): 3016–27. http://dx.doi.org/10.1152/jn.00411.2006.

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Dorsal posterior parietal cortex (PPC) has been implicated through single-unit recordings, neuroimaging data, and studies of brain-damaged humans in the spatial guidance of reaching and pointing movements. The present study examines the causal effect of single-pulse transcranial magnetic stimulation (TMS) over the left and right dorsal posterior parietal cortex during a memory-guided “reach-to-touch” movement task in six human subjects. Stimulation of the left parietal hemisphere significantly increased endpoint variability, independent of visual field, with no horizontal bias. In contrast, ri

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Kwinn, Michael J., Julia Coxen, and Jason A. Wolter. "Getting the Last Stop Right: An Analysis of the Fort Campbell Personnel Processing Center." Industrial and Systems Engineering Review 2, no. 1 (2014): 1–14. http://dx.doi.org/10.37266/iser.2014v2i1.pp1-14.

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This project proposes to develop an improved system to process Soldiers at the Personnel Processing Center (PPC) located at Fort Campbell, Kentucky. This processing center is the final pre-deployment requirement prior to missions in support of the Global War on Terror. The PPC services the 101st Airborne Division and Fort Campbell’s tenant units and receives a high volume of Soldiers for processing. It is in the interest of Soldiers, their families, and senior leadership to process deploying troops accurately and rapidly. The current system, though functioning and meeting the Army’s needs, has

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Zmigrod, Sharon. "The Role of the Parietal Cortex in Multisensory and Response Integration: Evidence from Transcranial Direct Current Stimulation (tDCS)." Multisensory Research 27, no. 2 (2014): 161–72. http://dx.doi.org/10.1163/22134808-00002449.

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The question of how the brain forms unified representations from multisensory data that are processed in distinct cortical regions is known in the literature as ‘the binding problem’. In the last decade, several studies have suggested possible neural mechanisms and brain regions that might be involved in integration processes. One of the brain regions that is implicated with multisensory perception is the posterior parietal cortex (PPC). Evidence from patients with parietal lesions suggests the involvement of the PPC in coherent perception. Here, we investigated the role of the PPC in multisen

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Pisella, L., N. Alahyane, A. Blangero, F. Thery, S. Blanc, and D. Pelisson. "Right-hemispheric dominance for visual remapping in humans." Philosophical Transactions of the Royal Society B: Biological Sciences 366, no. 1564 (2011): 572–85. http://dx.doi.org/10.1098/rstb.2010.0258.

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We review evidence showing a right-hemispheric dominance for visuo-spatial processing and representation in humans. Accordingly, visual disorganization symptoms (intuitively related to remapping impairments) are observed in both neglect and constructional apraxia. More specifically, we review findings from the intervening saccade paradigm in humans—and present additional original data—which suggest a specific role of the asymmetrical network at the temporo-parietal junction (TPJ) in the right hemisphere in visual remapping: following damage to the right dorsal posterior parietal cortex (PPC) a

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Roy, Lucia B., Roland Sparing, Gereon R. Fink, and Maike D. Hesse. "Modulation of attention functions by anodal tDCS on right PPC." Neuropsychologia 74 (July 2015): 96–107. http://dx.doi.org/10.1016/j.neuropsychologia.2015.02.028.

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van Koningsbruggen, Martijn G., Marius V. Peelen, Eilir Davies, and Robert D. Rafal. "Neural Control of Voluntary Eye Closure: A Case Study and an fMRI Investigation of Blinking and Winking." Behavioural Neurology 25, no. 2 (2012): 103–9. http://dx.doi.org/10.1155/2012/282686.

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The current paper describes a rare case of a patient who suffered from unilateral apraxia of eye closure as a result of a bilateral stroke. Interestingly, the patient’s ability to voluntarily close both eyelids (i.e. blinking) was not affected, indicating that different neural mechanisms control each type of eye closure. The stroke caused damage to a large part of the right frontal cortex, including the motor cortex, pre-motor cortex and the frontal eye field (FEF). The lesion in the left hemisphere was restricted to the FEF. In order to further study the neural mechanisms of eye closure, we c

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Carroll, Thomas, Maie El-Sourady, Mohana Karlekar, and Ashley Richeson. "Primary Palliative Care Education Programs: Review and Characterization." American Journal of Hospice and Palliative Medicine® 36, no. 6 (2018): 546–49. http://dx.doi.org/10.1177/1049909118809947.

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Background: Primary palliative care (PPC) education programs have arisen in response to the recognition that all clinicians need to have a basic set of knowledge and skills to provide excellent care to all patients. PPC education programs appear to vary widely, making it difficult for potential learners to find the right program to fit their needs. We have cataloged and categorized a snapshot of PPC education programs across the United States to serve as a resource for those seeking training, and for educators interested in starting or optimizing such programs. Methods: Medical and commercial

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Gonzalez, Alex, J. Benjamin Hutchinson, Melina R. Uncapher, et al. "Electrocorticography reveals the temporal dynamics of posterior parietal cortical activity during recognition memory decisions." Proceedings of the National Academy of Sciences 112, no. 35 (2015): 11066–71. http://dx.doi.org/10.1073/pnas.1510749112.

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Theories of the neurobiology of episodic memory predominantly focus on the contributions of medial temporal lobe structures, based on extensive lesion, electrophysiological, and imaging evidence. Against this backdrop, functional neuroimaging data have unexpectedly implicated left posterior parietal cortex (PPC) in episodic retrieval, revealing distinct activation patterns in PPC subregions as humans make memory-related decisions. To date, theorizing about the functional contributions of PPC has been hampered by the absence of information about the temporal dynamics of PPC activity as retrieva

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Cazzoli, Dario, René M. Müri, Christopher Kennard, and Clive R. Rosenthal. "The Role of the Right Posterior Parietal Cortex in Letter Migration between Words." Journal of Cognitive Neuroscience 27, no. 2 (2015): 377–86. http://dx.doi.org/10.1162/jocn_a_00713.

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When briefly presented with pairs of words, skilled readers can sometimes report words with migrated letters (e.g., they report hunt when presented with the words hint and hurt). This and other letter migration phenomena have been often used to investigate factors that influence reading such as letter position coding. However, the neural basis of letter migration is poorly understood. Previous evidence has implicated the right posterior parietal cortex (PPC) in processing visuospatial attributes and lexical properties during word reading. The aim of this study was to assess this putative role

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Bolognini, Nadia, Luca Zigiotto, Maíra Izzadora Souza Carneiro, and Giuseppe Vallar. "“How Did I Make It?”: Uncertainty about Own Motor Performance after Inhibition of the Premotor Cortex." Journal of Cognitive Neuroscience 28, no. 7 (2016): 1052–61. http://dx.doi.org/10.1162/jocn_a_00950.

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Optimal motor performance requires the monitoring of sensorimotor input to ensure that the motor output matches current intentions. The brain is thought to be equipped with a “comparator” system, which monitors and detects the congruence between intended and actual movement; results of such a comparison can reach awareness. This study explored in healthy participants whether the cathodal transcranial direct current stimulation (tDCS) of the right premotor cortex (PM) and right posterior parietal cortex (PPC) can disrupt performance monitoring in a skilled motor task. Before and after tDCS, par

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Kirimoto, Hikari, Tatsunori Watanabe, Nami Kubo, et al. "Influence of Static Magnetic Field Stimulation on the Accuracy of Tachystoscopically Presented Line Bisection." Brain Sciences 10, no. 12 (2020): 1006. http://dx.doi.org/10.3390/brainsci10121006.

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Transcranial static magnetic stimulation (tSMS) has been known to reduce human cortical excitability. Here, we investigated whether tSMS would modulate visuo-spatial cognition in healthy humans. Subjects performed a visuo-spatial task requiring judgements about the symmetry of pre-bisected lines. Visual stimuli consisted of symmetrically or asymmetrically transected lines, tachystoscopically presented for 150 ms on a computer monitor. Task performance was examined before, immediately after, and 10 min after tSMS/sham stimulation of 20 min over the posterior parietal cortex (PPC: P4 from the in

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Hoshina, Tomoya, Yusaku Tanabata, and Mingcong Deng. "Marginal Design of a Pneumatic Stage Position Using Filtered Right Coprime Factorization and PPC-SMC." Axioms 14, no. 7 (2025): 534. https://doi.org/10.3390/axioms14070534.

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In recent years, pneumatic stages have attracted attention as stages for semiconductor manufacturing equipment due to their low cost and minimal maintenance requirements. However, pneumatic stages include nonlinear elements such as friction and air compressibility, making precise control challenging. To address this issue, this paper aims to achieve high-precision positioning by applying a nonlinear position control method to pneumatic stages. To achieve this, we propose a control method that combines filtered right coprime factorization and Prescribed Performance Control–Sliding Mode Control

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Devalla, Mansi Dinesh, Shubhangi S. N. Prasad, and Balamurugan Ramatchandirane. "Phacoemulsification in posterior polar cataracts with a soft nucleus: Simple as ABC with proper techniques and precautions." Latin American Journal of Ophthalmology 7 (December 6, 2024): 16. https://doi.org/10.25259/lajo_33_2024.

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Posterior polar cataract (PPC) is a type of cataract characterized by opacification at the posterior pole of the lens. It poses unique challenges during surgical management due to its tendency for capsular weakness, which increases the risk of complications during phacoemulsification. If the nucleus is soft (grade <2), removal using phacoemulsification is easy after it has been delineated using hydrodelineation and viscodelineation. In this case, we aim to demonstrate and educate on the proper steps for performing phacoemulsification surgery under topical anesthesia for a 36-year-old woman

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Chalah, Moussa A., Naji Riachi, Rechdi Ahdab, et al. "Effects of left DLPFC versus right PPC tDCS on multiple sclerosis fatigue." Journal of the Neurological Sciences 372 (January 2017): 131–37. http://dx.doi.org/10.1016/j.jns.2016.11.015.

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Ogawa, Kenji, and Toshio Inui. "Reference Frame of Human Medial Intraparietal Cortex in Visually Guided Movements." Journal of Cognitive Neuroscience 24, no. 1 (2012): 171–82. http://dx.doi.org/10.1162/jocn_a_00132.

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Visually guided reaching involves the transformation of a spatial position of a target into a body-centered reference frame. Although involvement of the posterior parietal cortex (PPC) has been proposed in this visuomotor transformation, it is unclear whether human PPC uses visual or body-centered coordinates in visually guided movements. We used a delayed visually guided reaching task, together with an fMRI multivoxel pattern analysis, to reveal the reference frame used in the human PPC. In experiments, a target was first presented either to the left or to the right of a fixation point. After

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Abwainy, Ala'a, Fawzi Babiker, Saghir Akhtar, and Ibrahim F. Benter. "Endogenous angiotensin-(1-7)/Mas receptor/NO pathway mediates the cardioprotective effects of pacing postconditioning." American Journal of Physiology-Heart and Circulatory Physiology 310, no. 1 (2016): H104—H112. http://dx.doi.org/10.1152/ajpheart.00121.2015.

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The aim of the present study was to investigate the role of the ANG-(1–7) receptor (Mas) and nitric oxide (NO) in pacing postconditiong (PPC)-mediated cardioprotection against ischemia-reperfusion injury. Cardiac contractility and hemodynamics were assessed using a modified Langendorff system, cardiac damage was assessed by measuring infarct size and creatinine kinase levels, and levels of phosphorylated and total endothelial NO synthase (eNOS) were determined by Western blot analysis. Isolated hearts were subjected to 30 min of regional ischemia, produced by fixed position ligation of the lef

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Hashemirad, Fahimeh, Maryam Zoghi, Paul B. Fitzgerald, Masoumeh Hashemirad, and Shapour Jaberzadeh. "Site Dependency of Anodal Transcranial Direct-Current Stimulation on Reaction Time and Transfer of Learning during a Sequential Visual Isometric Pinch Task." Brain Sciences 14, no. 4 (2024): 408. http://dx.doi.org/10.3390/brainsci14040408.

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Considering the advantages of brain stimulation techniques in detecting the role of different areas of the brain in human sensorimotor behaviors, we used anodal transcranial direct-current stimulation (a-tDCS) over three different brain sites of the frontoparietal cortex (FPC) in healthy participants to elucidate the role of these three brain areas of the FPC on reaction time (RT) during a sequential visual isometric pinch task (SVIPT). We also aimed to assess if the stimulation of these cortical sites affects the transfer of learning during SVIPT. A total of 48 right-handed healthy participan

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Tozahro, Ni'mah, and Afrizal Nursin. "LAST PLANNER SYSTEM (LPS) IMPLEMENTATION ON JAKARTA-CIKAMPEK II ELEVATED TOLL ROAD PROJECT." Applied Research on Civil Engineering and Environment (ARCEE) 2, no. 01 (2020): 17–22. http://dx.doi.org/10.32722/arcee.v2i01.2859.

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In construction industry, its implementation of the construction has its own constraints. A good management or project management system is needed to minimize the risk of these constraints. The latest project management concept that has proven more effective and efficient is Last Planner System method. This study aims to investigate how the implementation of Last Planner System works on Jakarta-Cikampek II Elevated Toll Road Project. With the evaluation of weekly job evaluations using PPC (Percent Plan Completed) and Pareto Variance Constraint analysis, the constraint issues of this project wi

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Ogawa, Kenji, and Toshio Inui. "Lateralization of the Posterior Parietal Cortex for Internal Monitoring of Self- versus Externally Generated Movements." Journal of Cognitive Neuroscience 19, no. 11 (2007): 1827–35. http://dx.doi.org/10.1162/jocn.2007.19.11.1827.

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Internal monitoring or state estimation of movements is essential for human motor control to compensate for inherent delays and noise in sensorimotor loops. Two types of internal estimation of movements exist: self-generated movements, and externally generated movements. We used functional magnetic resonance imaging to investigate differences in brain activity for internal monitoring of self- versus externally generated movements during visual occlusion. Participants tracked a sinusoidally moving target with a mouse cursor. On some trials, vision of either target (externally generated) or curs

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Yang, Jie. "Measurement and Feature Analysis of Plantar Pressure Center in Athletes under Different Exercise Modes." Instrumentation Mesure Métrologie 19, no. 5 (2020): 399–403. http://dx.doi.org/10.18280/i2m.190511.

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Walking and running, two essential exercises in daily training for athletes, are major causes to foot injuries. The plantar pressure center (PPC) can accurately reflect the gait process, and effectively measure the function of foot. This paper measures the PPC trajectories of a total of 45 athletes during the support period of walking and running, and analyzes their regularities under different exercise modes. The time percentage of PPC trajectory and foot progression angle were selected as the main observation indices. The support period under each exercise mode was divided into four phases:

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García-Quintero, Ximena, Angélica Claros-Hulbert, María Elena Tello-Cajiao, et al. "Using EmPalPed—An Educational Toolkit on Essential Messages in Palliative Care and Pain Management in Children—As a Strategy to Promote Pediatric Palliative Care." Children 9, no. 6 (2022): 838. http://dx.doi.org/10.3390/children9060838.

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Background: Most children needing palliative care (PC) live in low- and middle-income countries. In Colombia, pediatric palliative care (PPC) knowledge among healthcare professionals (HCPs) is lacking as PPC is not included in the educational curricula of healthcare programs. Therefore, specific training that improves knowledge of HCPs and access to PC for children and their families is needed. To address this gap, we organized and conducted the Essential Messages in Palliative Care and Pain Management in Children (EmPalPed), an educational toolkit to increase awareness and promote essential k

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Serino, Andrea, Elisa Canzoneri, and Alessio Avenanti. "Fronto-parietal Areas Necessary for a Multisensory Representation of Peripersonal Space in Humans: An rTMS Study." Journal of Cognitive Neuroscience 23, no. 10 (2011): 2956–67. http://dx.doi.org/10.1162/jocn_a_00006.

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A network of brain regions including the ventral premotor cortex (vPMc) and the posterior parietal cortex (PPc) is consistently recruited during processing of multisensory stimuli within peripersonal space (PPS). However, to date, information on the causal role of these fronto-parietal areas in multisensory PPS representation is lacking. Using low-frequency repetitive TMS (rTMS; 1 Hz), we induced transient virtual lesions to the left vPMc, PPc, and visual cortex (V1, control site) and tested whether rTMS affected audio–tactile interaction in the PPS around the hand. Subjects performed a timed

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Setlers, Kaspars, Anastasija Jurcenko, Baiba Arklina, et al. "Identifying Early Risk Factors for Postoperative Pulmonary Complications in Cardiac Surgery Patients." Medicina 60, no. 9 (2024): 1398. http://dx.doi.org/10.3390/medicina60091398.

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Background and Objectives: Postoperative pulmonary complications (PPCs) are common in patients who undergo cardiac surgery and are widely acknowledged as significant contributors to increased morbidity, mortality rates, prolonged hospital stays, and healthcare costs. Clinical manifestations of PPCs can vary from mild to severe symptoms, with different radiological findings and varying incidence. Detecting early signs and identifying influencing factors of PPCs is essential to prevent patients from further complications. Our study aimed to determine the frequency, types, and risk factors signif

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de Graaf, Tom A., Alard Roebroeck, Rainer Goebel, and Alexander T. Sack. "Brain Network Dynamics Underlying Visuospatial Judgment: An fMRI Connectivity Study." Journal of Cognitive Neuroscience 22, no. 9 (2010): 2012–26. http://dx.doi.org/10.1162/jocn.2009.21345.

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Previous functional imaging research has consistently indicated involvement of bilateral fronto-parietal networks during the execution of visuospatial tasks. Studies with TMS have suggested that the right hemispheric network, but not the left, is functionally relevant for visuospatial judgments. However, very little is still known about the interactions within these fronto-parietal networks underlying visuospatial processing. In the current study, we investigated task modulation of functional connectivity (instantaneous correlations of regional time courses), and task-specific effective connec

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Vesia, Michael, Xiaogang Yan, Denise Y. Henriques, Lauren E. Sergio, and J. D. Crawford. "Transcranial Magnetic Stimulation Over Human Dorsal–Lateral Posterior Parietal Cortex Disrupts Integration of Hand Position Signals Into the Reach Plan." Journal of Neurophysiology 100, no. 4 (2008): 2005–14. http://dx.doi.org/10.1152/jn.90519.2008.

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Posterior parietal cortex (PPC) has been implicated in the integration of visual and proprioceptive information for the planning of action. We previously reported that single-pulse transcranial magnetic stimulation (TMS) over dorsal–lateral PPC perturbs the early stages of spatial processing for memory-guided reaching. However, our data did not distinguish whether TMS disrupted the reach goal or the internal estimate of initial hand position needed to calculate the reach vector. To test between these hypotheses, we investigated reaching in six healthy humans during left and right parietal TMS

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McMackin, Roisin, Stefan Dukic, Emmet Costello, et al. "Localization of Brain Networks Engaged by the Sustained Attention to Response Task Provides Quantitative Markers of Executive Impairment in Amyotrophic Lateral Sclerosis." Cerebral Cortex 30, no. 9 (2020): 4834–46. http://dx.doi.org/10.1093/cercor/bhaa076.

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Abstract Objective: To identify cortical regions engaged during the sustained attention to response task (SART) and characterize changes in their activity associated with the neurodegenerative condition amyotrophic lateral sclerosis (ALS). Methods: High-density electroencephalography (EEG) was recorded from 33 controls and 23 ALS patients during a SART paradigm. Differences in associated event-related potential peaks were measured for Go and NoGo trials. Sources active during these peaks were localized, and ALS-associated differences were quantified. Results: Go and NoGo N2 and P3 peak sources

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Giovanello, Kelly S., Felipe De Brigard, Jaclyn Hennessey Ford, et al. "Event-Related Functional Magnetic Resonance Imaging Changes during Relational Retrieval in Normal Aging and Amnestic Mild Cognitive Impairment." Journal of the International Neuropsychological Society 18, no. 5 (2012): 886–97. http://dx.doi.org/10.1017/s1355617712000689.

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AbstractThe earliest cognitive deficits observed in amnestic mild cognitive impairment (aMCI) appear to center on memory tasks that require relational memory (RM), the ability to link or integrate unrelated pieces of information. RM impairments in aMCI likely reflect neural changes in the medial temporal lobe (MTL) and posterior parietal cortex (PPC). We tested the hypothesis that individuals with aMCI, as compared to cognitively normal (CN) controls, would recruit neural regions outside of the MTL and PPC to support relational memory. To this end, we directly compared the neural underpinnings

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Schintu, Selene, Michael Freedberg, Stephen J. Gotts, et al. "Prism Adaptation Modulates Connectivity of the Intraparietal Sulcus with Multiple Brain Networks." Cerebral Cortex 30, no. 9 (2020): 4747–58. http://dx.doi.org/10.1093/cercor/bhaa032.

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Abstract Prism adaptation (PA) alters spatial cognition according to the direction of visual displacement by temporarily modifying sensorimotor mapping. Right-shifting prisms (right PA) improve neglect of left visual field in patients, possibly by decreasing activity in the left hemisphere and increasing it in the right. Left PA shifts attention rightward in healthy individuals by an opposite mechanism. However, functional imaging studies of PA are inconsistent, perhaps because of differing activation tasks. We measured resting-state functional connectivity (RSFC) in healthy individuals before

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Gaviria Morales, Elizabeth, Marco Guidi, Tomas Peterka, Andrea Rabufetti, Roland Blum, and Carlo Mainetti. "Primary Cutaneous Cryptococcosis due to Cryptococcus neoformans in an Immunocompetent Host Treated with Itraconazole and Drainage: Case Report and Review of the Literature." Case Reports in Dermatology 13, no. 1 (2021): 89–97. http://dx.doi.org/10.1159/000512289.

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<i>Cryptococcus neoformans</i> is an opportunistic germ, usually causing infections in immunocompromised patients. The main sources of infection with <i>C. neoformans</i> are excrement from birds, decomposing wood, fruit, and vegetables. Primary cutaneous cryptococcosis (PCC) is a clinical entity, differing from secondary cutaneous cryptococcosis and systematic infection. We report the case of an immunocompetent 60-year-old woman with PCC due to <i>C. neoformans</i> in her right thumb. She reported an accidental injury caused by a rose thorn while she was ga

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Chalah, M. A., A. Créange, J. P. Lefaucheur, and S. S. Ayache. "P071 tDCS effects over the left DLPFC versus the right PPC in multiple sclerosis fatigue." Clinical Neurophysiology 128, no. 3 (2017): e39-e40. http://dx.doi.org/10.1016/j.clinph.2016.10.196.

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Yordanova, Bilyana B., Lyudmil D. Krastev, and Nikolay Iv Ivantchev. "FACTORIAL STRUCTURE AND PSYCHOMETRIC PROPERTIES OF ATTITUDES TO ECONOMIC DEPENDENCE OR INDEPENDENCE IN A SAMPLE OF BULGARIAN CITIZENS." Problems of Psychology in the 21st Century 8, no. 1 (2014): 26–35. http://dx.doi.org/10.33225/ppc/14.08.26.

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Rising interactions of asymmetrical exchange as a consequence of unequal access to economic resources create status differences between people. In that way some people are provided with authority benefits while the others are in dependent position. The situation of economic dependence arises when the object is seen by the subject like a unique source for personal needs gratification. The degree of dependence is right proportional to the object’s subjective significance for a particular person, group, organization, etc. This statement provokes the problem of dependence as a psychological phenom

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Kumar, Adarsh, Gaurav Panthi, Rechu Divakar, and Pratik K. Mutha. "Mechanistic determinants of effector-independent motor memory encoding." Proceedings of the National Academy of Sciences 117, no. 29 (2020): 17338–47. http://dx.doi.org/10.1073/pnas.2001179117.

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Coordinated, purposeful movements learned with one effector generalize to another effector, a finding that has important implications for tool use, sports, performing arts, and rehabilitation. This occurs because the motor memory acquired through learning comprises representations that are effector-independent. Despite knowing this for decades, the neural mechanisms and substrates that are causally associated with the encoding of effector-independent motor memories remain poorly understood. Here we exploit intereffector generalization, the behavioral signature of effector-independent represent

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Buneo, Christopher A., and Richard A. Andersen. "Integration of target and hand position signals in the posterior parietal cortex: effects of workspace and hand vision." Journal of Neurophysiology 108, no. 1 (2012): 187–99. http://dx.doi.org/10.1152/jn.00137.2011.

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Previous findings suggest the posterior parietal cortex (PPC) contributes to arm movement planning by transforming target and limb position signals into a desired reach vector. However, the neural mechanisms underlying this transformation remain unclear. In the present study we examined the responses of 109 PPC neurons as movements were planned and executed to visual targets presented over a large portion of the reaching workspace. In contrast to previous studies, movements were made without concurrent visual and somatic cues about the starting position of the hand. For comparison, a subset of

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Albanese, M. C., E. G. Duerden, V. Bohotin, P. Rainville, and G. H. Duncan. "Differential Effects of Cognitive Demand on Human Cortical Activation Associated With Vibrotactile Stimulation." Journal of Neurophysiology 102, no. 3 (2009): 1623–31. http://dx.doi.org/10.1152/jn.91295.2008.

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This event-related functional MRI study examines the neural correlates of vibrotactile sensation within the context of different psychophysical demands. Nine subjects received vibrotactile stimuli on the right volar forearm during detection, localization, and passive tasks. In the detection task, subjects indicated the offset (end) of each stimulus by pressing a response key with their left hand. In the localization task, subjects identified the location of the stimulus (“distal?” or “proximal?”) by pressing the appropriate response key 4 s after the end of the stimulus. In the passive task, s

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Manobanda-Narvaez, J. S., Y. E. Calizaya-Milla, and J. Saintila. "Chemical composition and acceptability of peanut paste (Arachis hypogaea L.) based on proteins isolated from legumes." Food Research 6, no. 2 (2022): 345–53. http://dx.doi.org/10.26656/fr.2017.6(2).251.

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Protein-calorie malnutrition represents one of the public health problems in the world. A total of three mixtures of peanut paste were formulated with legume protein isolate at 5% each, peanut paste and lentil protein isolate (PPL), peanut paste and pea protein isolate (PPP), and peanut paste and chickpea protein isolate (PPC). To evaluate the composition of the mixtures; moisture, crude protein, total fat, ash, crude fibre, and carbohydrates were determined according to the Association of Official Analytical Chemists, Official methods of analysis (AOAC). Acceptability was assessed using the J

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Ros, Javier, Jose Maria Ucha, Eduardo Garcia-Galea, et al. "Real-World Data of Patients with BRAF V600E-Mutated Metastatic Colorectal Cancer Treated with Trifluridine/Tipiracil." Cancers 16, no. 24 (2024): 4140. https://doi.org/10.3390/cancers16244140.

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Background: For patients with refractory metastatic colorectal cancer (mCRC), trifluridine/tipiracil (FTD–TPI) has been associated with a significant improvement in overall survival (OS). However, data are lacking regarding the activity of FTD–TPI in patients with BRAF-mutated mCRC. Methods: This retrospective, multicenter, international cohort included patients with BRAF-mutated mCRC treated with FTD–TPI in a real-life setting in Spain and Italy. Survival analysis was performed using Kaplan–Meier methods and Cox proportional hazard models and according to established prognostic groups: good p

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Pecchinenda, Anna, Francesca De Luca, Bianca Monachesi, et al. "Contributions of the Right Prefrontal and Parietal Cortices to the Attentional Blink: A tDCS Study." Symmetry 13, no. 7 (2021): 1208. http://dx.doi.org/10.3390/sym13071208.

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The AB refers to the performance impairment that occurs when visual selective attention is overloaded through the very rapid succession of two targets (T1 and T2) among distractors by using the rapid serial visual presentation task (RSVP). Under these conditions, performance is typically impaired when T2 is presented within 200–500 ms from T1 (AB). Based on neuroimaging studies suggesting a role of top-down attention and working memory brain hubs in the AB, here we potentiated via anodal or sham tDCS the activity of the right DLPFC (F4) and of the right PPC (P4) during an AB task. The findings

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