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1

Choi, Woong, Liang Li, and Jongho Lee. "Characteristic of Motor Control in Three-Dimensional Circular Tracking Movements during Monocular Vision." BioMed Research International 2019 (November 3, 2019): 1–16. http://dx.doi.org/10.1155/2019/3867138.

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Analysis of visually guided tracking movements is an important component of understanding human visuomotor control system. The aim of our study was to investigate the effects of different target speeds and different circular tracking planes, which provide different visual feedback of depth information, on temporal and spatial tracking accuracy. In this study, we analyze motor control characteristic of circular tracking movements during monocular vision in three-dimensional space using a virtual reality system. Three parameters in polar coordinates were analyzed: ΔR, the difference in the dista
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Wachholz, Felix, Tove Kockum, Thomas Haid, and Peter Federolf. "Changed Temporal Structure of Neuromuscular Control, Rather Than Changed Intersegment Coordination, Explains Altered Stabilographic Regularity after a Moderate Perturbation of the Postural Control System." Entropy 21, no. 6 (2019): 614. http://dx.doi.org/10.3390/e21060614.

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Sample entropy (SaEn) applied on center-of-pressure (COP) data provides a measure for the regularity of human postural control. Two mechanisms could contribute to altered COP regularity: first, an altered temporal structure (temporal regularity) of postural movements (H1); or second, altered coordination between segment movements (coordinative complexity; H2). The current study used rapid, voluntary head-shaking to perturb the postural control system, thus producing changes in COP regularity, to then assess the two hypotheses. Sixteen healthy participants (age 26.5 ± 3.5; seven females), whose
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Corcos, Daniel M. "Temporal representation in the control of movement." Behavioral and Brain Sciences 17, no. 2 (1994): 206. http://dx.doi.org/10.1017/s0140525x00034075.

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Theories of the representation of specific kinetic and spatiotem-poral features of movement range from the explicit assertion that temporal aspects of movement are not represented (Kugler et al. 1980) to the idea that they are represented and that they have neurophysiological correlates (Ivry & Corcos 1993; Ivry & Keele 1989). Jeannerod's thesis is that mental and visual images have common mechanisms and that there is a link between the image to move and the mechanisms involved with movement. The target article takes the position that certain parameters are coded in motor representatio
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Furuya, Shinichi, and Sayuri Yokota. "Temporal exploration in sequential movements shapes efficient neuromuscular control." Journal of Neurophysiology 120, no. 1 (2018): 196–210. http://dx.doi.org/10.1152/jn.00922.2017.

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The interaction of early and deliberate practice with genetic predisposition endows experts with virtuosic motor performance. However, it has not been known whether ways of practicing shape motor virtuosity. Here, we addressed this issue by comparing the effects of rhythmic variation in motor practice on neuromuscular control of the finger movements in pianists. With the use of a novel electromyography system with miniature active electrodes, we recorded the activity of the intrinsic hand muscles of 27 pianists while they played the piano and analyzed it by using a nonnegative matrix factoriza
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Niu, C. Minos, Daniel M. Corcos, and Mark B. Shapiro. "Temporal Shift From Velocity to Position Proprioceptive Feedback Control During Reaching Movements." Journal of Neurophysiology 104, no. 5 (2010): 2512–22. http://dx.doi.org/10.1152/jn.00302.2010.

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Reaching movements to a target usually have stereotypical kinematics. Although this suggests that the desired kinematics of a movement might be planned, does it also mean that deviations from the planned kinematics are corrected by proprioceptive feedback control? To answer this question, we designed a task in which the subjects made center-forward movements to a target while holding the handle of a robot. Subjects were instructed to make movements at a peak velocity of 1 m/s. No further instructions were given with respect to the movement trajectory or the velocity time profile. In randomly c
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Teasdale, N., J. Phillips, and G. E. Stelmach. "Temporal movement control in patients with Parkinson's disease." Journal of Neurology, Neurosurgery & Psychiatry 53, no. 10 (1990): 862–68. http://dx.doi.org/10.1136/jnnp.53.10.862.

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7

Wallace, Stephen A., and Douglas L. Weeks. "Temporal Constraints in the Control of Prehensile Movement." Journal of Motor Behavior 20, no. 2 (1988): 81–105. http://dx.doi.org/10.1080/00222895.1988.10735435.

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8

Taylor, Jordan A., and Kurt A. Thoroughman. "Divided Attention Impairs Human Motor Adaptation But Not Feedback Control." Journal of Neurophysiology 98, no. 1 (2007): 317–26. http://dx.doi.org/10.1152/jn.01070.2006.

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When humans experience externally induced errors in a movement, the motor system's feedback control compensates for those errors within the movement. The motor system's predictive control then uses information about those errors to inform future movements. The role of attention in these two distinct motor processes is unclear. Previous experiments have revealed a role for attention in motor learning over the course of many movements; however, these experimental paradigms do not determine how attention influences within-movement feedback control versus across-movement adaptation. Here we develo
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9

Balslev, Daniela, Jonathan Cole, and R. Chris Miall. "Proprioception Contributes to the Sense of Agency during Visual Observation of Hand Movements: Evidence from Temporal Judgments of Action." Journal of Cognitive Neuroscience 19, no. 9 (2007): 1535–41. http://dx.doi.org/10.1162/jocn.2007.19.9.1535.

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The ability to recognize visually one's own movement is important for motor control and, through attribution of agency, for social interactions. Agency of actions may be decided by comparisons of visual feedback, efferent signals, and proprioceptive inputs. Because the ability to identify one's own visual feedback from passive movements is decreased relative to active movements, or in some cases is even absent, the role of proprioception in self-recognition has been questioned. Proprioception during passive and activemovements may, however, differ, and so to address any role for proprioception
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10

Yu, Shin-Yuan, and Bernard J. Martin. "Movement Control Phases of Upper Body Coordination in Visually Guided Reach Movements." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 53, no. 12 (2009): 834–38. http://dx.doi.org/10.1177/154193120905301215.

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Coordination of human movement includes temporal and spatial aspects. Under the assumption that the implicit movement sequence of body segments may be associated with visual feedback information, the activation timing, time to peak velocity of the hand and sequencing of joint movements were investigated in this study. The results show that variations in movement time with target azimuth and distance fit a quadratic regression model. In addition, the time to peak velocity reveals a movement scaling property in the context of self-imposed movement speed. Finally, the sequencing of joint movement
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11

Kornysheva, Katja, Anika Sierk, and Jörn Diedrichsen. "Interaction of temporal and ordinal representations in movement sequences." Journal of Neurophysiology 109, no. 5 (2013): 1416–24. http://dx.doi.org/10.1152/jn.00509.2012.

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The production of movement sequences requires an accurate control of muscle activation in time. How does the nervous system encode the precise timing of these movements? One possibility is that the timing of movements (temporal sequence) is an emergent property of the dynamic state of the nervous system and therefore intimately linked to a representation of the sequence of muscle commands (ordinal sequence). Alternatively, timing may be represented independently of the motor effectors and would be transferable to a new ordinal sequence. Some studies have found that a learned temporal sequence
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12

Maslovat, Dana, Nicola J. Hodges, Romeo Chua, and Ian M. Franks. "Motor preparation of spatially and temporally defined movements: evidence from startle." Journal of Neurophysiology 106, no. 2 (2011): 885–94. http://dx.doi.org/10.1152/jn.00166.2011.

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Previous research has shown that the preparation of a spatially targeted movement performed at maximal speed is different from that of a temporally constrained movement ( Gottlieb et al. 1989b ). In the current study, we directly examined preparation differences in temporally vs. spatially defined movements through the use of a startling stimulus and manipulation of the task goals. Participants performed arm extension movements to one of three spatial targets (20°, 40°, 60°) and an arm extension movement of 20° at three movement speeds (slow, moderate, fast). All movements were performed in a
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Malouin, Francine, Carol L. Richards, Anne Durand, et al. "Effects of Practice, Visual Loss, Limb Amputation, and Disuse on Motor Imagery Vividness." Neurorehabilitation and Neural Repair 23, no. 5 (2009): 449–63. http://dx.doi.org/10.1177/1545968308328733.

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Background. The ability to generate vivid images of movements is variable across individuals and likely influenced by sensorimotor inputs. Objectives. The authors examined (1) the vividness of motor imagery in dancers and in persons with late blindness, with amputation or an immobilization of one lower limb; (2) the effects of prosthesis use on motor imagery; and (3) the temporal characteristics of motor imagery. Methods. Eleven dancers, 10 persons with late blindness, 14 with amputation, 6 with immobilization, and 2 groups of age-matched healthy individuals (27 in control group A; 35 in contr
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Nizhelskoy, Viktor A., Tatiana N. Zaytseva, and Marina Yu Gerasimenko. "Psychoemotional motivation of motor act development (pilot study)." Russian Journal of Physiotherapy, Balneology and Rehabilitation 20, no. 2 (2021): 89–98. http://dx.doi.org/10.17816/1681-3456-2021-20-2-1.

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BACKGROUND: In clinical practice, video motion analysis is widely used. It is known that such a higher mental function as creative thinking manifests itself in the motor activity of the body, as a result of which the movement becomes expressive. Since the quality of the images presented affects the organization of movement, it is presumably possible to characterize this psychosomatic connection through an assessment of the expressiveness of movement.
 AIMS: fixation in graphic and digital format of expressive movement, as well as the identification of spatio-temporal criteria for the quan
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15

Belkacem, Abdelkader Nasreddine, Supat Saetia, Kalanyu Zintus-art, et al. "Real-Time Control of a Video Game Using Eye Movements and Two Temporal EEG Sensors." Computational Intelligence and Neuroscience 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/653639.

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EEG-controlled gaming applications range widely from strictly medical to completely nonmedical applications. Games can provide not only entertainment but also strong motivation for practicing, thereby achieving better control with rehabilitation system. In this paper we present real-time control of video game with eye movements for asynchronous and noninvasive communication system using two temporal EEG sensors. We used wavelets to detect the instance of eye movement and time-series characteristics to distinguish between six classes of eye movement. A control interface was developed to test th
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16

Goodbody, Susan J., and Daniel M. Wolpert. "Temporal and Amplitude Generalization in Motor Learning." Journal of Neurophysiology 79, no. 4 (1998): 1825–38. http://dx.doi.org/10.1152/jn.1998.79.4.1825.

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Goodbody, Susan J. and Daniel M. Wolpert. Temporal and amplitude generalization in motor learning. J. Neurophysiol. 79: 1825–1838, 1998. A fundamental feature of human motor control is the ability to vary effortlessly over a substantial range, both the duration and amplitude of our movements. We used a three-dimensional robotic interface, which generated novel velocity dependent forces on the hand, to investigate how adaptation to these altered dynamics experienced only for movements at one temporal rate and amplitude generalizes to movements made at a different rate or amplitude. After subjec
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17

Grigos, Maria I., Aviva Moss, and Ying Lu. "Oral Articulatory Control in Childhood Apraxia of Speech." Journal of Speech, Language, and Hearing Research 58, no. 4 (2015): 1103–18. http://dx.doi.org/10.1044/2015_jslhr-s-13-0221.

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Purpose The purpose of this research was to examine spatial and temporal aspects of articulatory control in children with childhood apraxia of speech (CAS), children with speech delay characterized by an articulation/phonological impairment (SD), and controls with typical development (TD) during speech tasks that increased in word length. Method The participants included 33 children (11 CAS, 11 SD, and 11 TD) between 3 and 7 years of age. A motion capture system was used to track jaw, lower lip, and upper lip movement during a naming task. Movement duration, velocity, displacement, and variabi
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18

Goebl, Werner, and Caroline Palmer. "Temporal Control and Hand Movement Efficiency in Skilled Music Performance." PLoS ONE 8, no. 1 (2013): e50901. http://dx.doi.org/10.1371/journal.pone.0050901.

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19

Malouin, Francine, Carol L. Richards, and Anne Durand. "Slowing of Motor Imagery after a Right Hemispheric Stroke." Stroke Research and Treatment 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/297217.

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The temporal congruence between real and imagined movements is not always preserved after stroke. We investigated the dependence of temporal incongruence on the side of the hemispheric lesion and its link with working memory deficits. Thirty-seven persons with a chronic stroke after a right or left hemispheric lesion (RHL : n=19; LHL : n=18) and 32 age-matched healthy persons (CTL) were administered a motor imagery questionnaire, mental chronometry and working memory tests. In contrast to persons in the CTL group and LHL subgroup, persons with a RHL had longer movement times during the imagina
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20

Spencer, Rebecca M. C., Richard B. Ivry, Daniel Cattaert, and Andras Semjen. "Bimanual Coordination During Rhythmic Movements in the Absence of Somatosensory Feedback." Journal of Neurophysiology 94, no. 4 (2005): 2901–10. http://dx.doi.org/10.1152/jn.00363.2005.

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We investigated the role of somatosensory feedback during bimanual coordination by testing a bilaterally deafferented patient, a unilaterally deafferented patient, and three control participants on a repetitive bimanual circle-drawing task. Circles were drawn symmetrically or asymmetrically at varying speeds with full, partial, or no vision of the hands. Strong temporal coupling was observed between the hands at all movement rates during symmetrical drawing and at the comfortable movement rate during asymmetrical drawing in all participants. When making asymmetric movements at the comfortable
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Gebehart, Corinna, and Ansgar Büschges. "Temporal differences between load and movement signal integration in the sensorimotor network of an insect leg." Journal of Neurophysiology 126, no. 6 (2021): 1875–90. http://dx.doi.org/10.1152/jn.00399.2021.

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Networks integrating multisensory input face the challenge of not only spatial but also temporal integration. In the local network controlling insect leg movements, proprioceptive signal delays differ between sensory modalities. Specifically, signal transmission times to and neuronal connectivity within the sensorimotor network lead to delayed information about leg loading relative to movement signals. Temporal delays persist up to the level of the motor output, demonstrating its relevance for motor control.
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22

Hoppe, David, and Constantin A. Rothkopf. "Learning rational temporal eye movement strategies." Proceedings of the National Academy of Sciences 113, no. 29 (2016): 8332–37. http://dx.doi.org/10.1073/pnas.1601305113.

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During active behavior humans redirect their gaze several times every second within the visual environment. Where we look within static images is highly efficient, as quantified by computational models of human gaze shifts in visual search and face recognition tasks. However, when we shift gaze is mostly unknown despite its fundamental importance for survival in a dynamic world. It has been suggested that during naturalistic visuomotor behavior gaze deployment is coordinated with task-relevant events, often predictive of future events, and studies in sportsmen suggest that timing of eye moveme
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Earhart, Gammon M., and Amy J. Bastian. "Selection and Coordination of Human Locomotor Forms Following Cerebellar Damage." Journal of Neurophysiology 85, no. 2 (2001): 759–69. http://dx.doi.org/10.1152/jn.2001.85.2.759.

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We have previously shown that control subjects use two distinct temporal strategies when stepping on an inclined surface during walking: one for level and 10° surfaces and another for 20 and 30° surfaces. These two temporal strategies were characterized by systematic shifts in the timing of muscle activity and peak joint angles. We examined whether cerebellar subjects with mild to moderate gait ataxia were impaired in their ability to select these two temporal strategies, adjust peak joint angle amplitudes, and/or adjust one joint appropriately with respect to movements and constraints at anot
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Franz, Elizabeth A., James C. Eliassen, Richard B. Ivry, and Michael S. Gazzaniga. "Dissociation of Spatial and Temporal Coupling in the Bimanual Movements of Callosotomy Patients." Psychological Science 7, no. 5 (1996): 306–10. http://dx.doi.org/10.1111/j.1467-9280.1996.tb00379.x.

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The neural mechanisms of limb coordination were investigated by testing callosotomy patients and normal control subjects on bimanual movements Normal subjects produced deviations in the trajectories when spatial demands for the two hands were different, despite temporal synchrony in the onset of bimanual movements Callosotomy patients did not produce spatial deviations, although their hands moved with normal temporal synchrony Normal subjects but not callosotomy patients exhibited large increases in planning and execution time for movements with different spatial demands for the two hands rela
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Sasaki, Reiko. "Development of tapping movement control maintained temporal regularity in early childhood." Journal of Biomechanics 25, no. 7 (1992): 754. http://dx.doi.org/10.1016/0021-9290(92)90449-b.

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Wachholz, Felix, Federico Tiribello, Maurice Mohr, Steven van Andel, and Peter Federolf. "Adolescent Awkwardness: Alterations in Temporal Control Characteristics of Posture with Maturation and the Relation to Movement Exploration." Brain Sciences 10, no. 4 (2020): 216. http://dx.doi.org/10.3390/brainsci10040216.

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A phenomenon called adolescent awkwardness is believed to alter motor control, but underlying mechanisms remain largely unclear. Since adolescents undergo neurological and anthropometrical changes during this developmental phase, we hypothesized that adolescents control their movements less tightly and use a different coordinative structure compared to adults. Moreover, we tested if emerging differences were driven by body height alterations between age groups. Using 39 reflective markers, postural movements during tandem stance with eyes open and eyes closed of 12 adolescents (height 168.1 ±
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Walsh, Bridget, and Anne Smith. "Articulatory Movements in Adolescents." Journal of Speech, Language, and Hearing Research 45, no. 6 (2002): 1119–33. http://dx.doi.org/10.1044/1092-4388(2002/090).

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In order to contribute to a more comprehensive model of speech motor development, we examined the movement trajectories of the upper lip, lower lip, and jaw to determine (a) if there are changes in articulatory motor control in late adolescence; b) if there are sex differences during this developmental period, perhaps related to differences in craniofacial growth rates; (c) if control of jaw motion is adultlike earlier than control of the upper and lower lip; and (d) if control of spatial and temporal aspects of articulatory movement co-develop in adolescence. Participants were 12-, 14-, and 1
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Furuya, Shinichi, and John F. Soechting. "Speed invariance of independent control of finger movements in pianists." Journal of Neurophysiology 108, no. 7 (2012): 2060–68. http://dx.doi.org/10.1152/jn.00378.2012.

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Independent control of finger movements characterizes skilled motor behaviors such as tool use and musical performance. The purpose of the present study was to identify the effect of movement frequency (tempo) on individuated finger movements in piano playing. Joint motion at the digits was recorded while 5 expert pianists were playing 30 excerpts from musical pieces with different fingering and key locations either at a predetermined normal tempo or as fast as possible. Principal component analysis and cluster analysis using an expectation-maximization algorithm determined three distinct patt
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Zeng, Shaoxiang, Mengfei Yu, Shanmin Chen, and Mengfen Shen. "An Intelligent Multi-Ring Shield Movement Performance Prediction and Control Method." Applied Sciences 14, no. 10 (2024): 4223. http://dx.doi.org/10.3390/app14104223.

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Accurate control of the shield attitude can ensure precise tunnel excavation and minimize impact on the surrounding areas. However, neglecting the total thrust force may cause excessive disturbance to the strata, leading to collapse. This study proposes a Bayesian optimization-based temporal attention long short-term memory model (BOTA-LSTM) for multi-objective prediction and control of shield tunneling, including shield attitude and total thrust. The model can achieve multi-ring predictions of shield attitude and total thrust by allocating larger weights to significant moments through a tempo
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Rong, Panying, and Lindsey Heidrick. "Spatiotemporal Control of Articulation During Speech and Speechlike Tasks in Amyotrophic Lateral Sclerosis." American Journal of Speech-Language Pathology 30, no. 3S (2021): 1382–99. http://dx.doi.org/10.1044/2020_ajslp-20-00136.

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Purpose This study examined the articulatory control of speech and speechlike tasks in individuals with amyotrophic lateral sclerosis (ALS) and neurologically healthy individuals with the aim to identify the most useful set of articulatory features and tasks for assessing bulbar motor involvement in ALS. Method Tongue and jaw kinematics were recorded in 12 individuals with bulbar ALS and 10 healthy controls during a speech task and two speechlike tasks (i.e., alternating motion rate [AMR], sequential motion rate [SMR]). Eight articulatory features were derived for each participant per task, in
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Austin, Devin Sean, Makenna J. Dixon, Joanna E. Hoh, Duncan Thibodeau Tulimieri, Joshua G. A. Cashaback, and Jennifer A. Semrau. "Using a tablet to understand the spatial and temporal characteristics of complex upper limb movements in chronic stroke." PLOS ONE 19, no. 11 (2024): e0311773. http://dx.doi.org/10.1371/journal.pone.0311773.

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Robotic devices are commonly used to quantify sensorimotor function of the upper limb after stroke; however, the availability and cost of such devices make it difficult to facilitate implementation in clinical environments. Tablets (e.g. iPad) can be used as devices to facilitate rehabilitation but are rarely used as assessment tools for the upper limb. The current study aimed to implement a tablet-based Maze Navigation Task to examine complex upper-limb movement in individuals with chronic stroke. We define complex upper-limb movement as reaching movements that require multi-joint coordinatio
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Prange, G. B., M. J. A. Jannink, A. H. A. Stienen, H. van der Kooij, M. J. IJzerman, and H. J. Hermens. "Influence of Gravity Compensation on Muscle Activation Patterns During Different Temporal Phases of Arm Movements of Stroke Patients." Neurorehabilitation and Neural Repair 23, no. 5 (2009): 478–85. http://dx.doi.org/10.1177/1545968308328720.

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Background. Arm support to help compensate for the effects of gravity may improve functional use of the shoulder and elbow during therapy after stroke, but gravity compensation may alter motor control. Objective. To obtain quantitative information on how gravity compensation influences muscle activation patterns during functional, 3-dimensional reaching movements. Methods. Eight patients with mild hemiparesis performed 2 sets of repeated reach and retrieval movements, with and without unloading the arm, using a device that acted at the elbow and forearm to compensate for gravity. Electromyogra
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Masapollo, Matthew, Grant Oberle, Kayleigh Burge, et al. "Auditory feedback control of inter-articulator speech coordination: Evidence from tongue and jaw movements." Journal of the Acoustical Society of America 153, no. 3_supplement (2023): A367. http://dx.doi.org/10.1121/10.0019188.

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In order to test whether and how immediate auditory feedback is involved in the coordinated action of sets of speech articulators, the current research quantified changes in the temporal and spatiotemporal relations between jaw and tongue tip movements in response to noise masking. Normal-hearing talkers recorded /tV#Cat/ utterances using electromagnetic articulography, with alternative V (/ɑ/-/ɛ) and C (/t/-/d/), across variation in production rate (fast-slow) and stress (first syllable stressed-unstressed). Approximately 240 utterances were produced in two conditions: normal listening and au
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Ballard, Kirrie J., Donald A. Robin, George Woodworth, and Lynn D. Zimba. "Age-Related Changes in Motor Control During Articulator Visuomotor Tracking." Journal of Speech, Language, and Hearing Research 44, no. 4 (2001): 763–77. http://dx.doi.org/10.1044/1092-4388(2001/060).

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The present study provides normative data on changes in visuomotor control of the oral-facial system across the lifespan. Control of the lower lip, jaw, and larynx (i.e., fundamental frequency) was examined using a nonspeech visuomotor tracking (VMT) task, where subjects move the articulator of interest to track a moving target on an oscilloscope screen. This task examines articulator motor control during movements that are similar to speech but that do not impose linguistic units or the demands of coordinating multiple structures. Accuracy and within- and between-subject variability in tracki
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Kannape, O. A., and O. Blanke. "Self in motion: sensorimotor and cognitive mechanisms in gait agency." Journal of Neurophysiology 110, no. 8 (2013): 1837–47. http://dx.doi.org/10.1152/jn.01042.2012.

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Acting in our environment and experiencing ourselves as conscious agents are fundamental aspects of human selfhood. While large advances have been made with respect to understanding human sensorimotor control from an engineering approach, knowledge about its interaction with cognition and the conscious experience of movement (agency) is still sparse, especially for locomotion. We investigated these relationships by using life-size visual feedback of participants' ongoing locomotion, thereby extending agency research previously limited to goal-directed upper limb movements to continuous movemen
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Ullén, Fredrik, and Sara L. Bengtsson. "Independent Processing of the Temporal and Ordinal Structure of Movement Sequences." Journal of Neurophysiology 90, no. 6 (2003): 3725–35. http://dx.doi.org/10.1152/jn.00458.2003.

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We investigated if the temporal and ordinal structures of sequences can be represented and learned independently. In Experiment 1, subjects learned three rhythmic sequences of key presses with the right index finger: Combined consisted of nine key presses with a corresponding temporal structure of eight intervals; Temporal had the temporal structure of Combined but was performed on one key; Ordinal had the ordinal structure of Combined but an isochronous rhythm. Subjects were divided into two groups. Group 1 first learned Combined, then Temporal and Ordinal; Group 2 first learned Temporal and
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Donnet, Sophie, Ramon Bartolo, José Maria Fernandes, João Paulo Silva Cunha, Luis Prado, and Hugo Merchant. "Monkeys time their pauses of movement and not their movement-kinematics during a synchronization-continuation rhythmic task." Journal of Neurophysiology 111, no. 10 (2014): 2138–49. http://dx.doi.org/10.1152/jn.00802.2013.

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A critical question in tapping behavior is to understand whether the temporal control is exerted on the duration and trajectory of the downward-upward hand movement or on the pause between hand movements. In the present study, we determined the duration of both the movement execution and pauses of monkeys performing a synchronization-continuation task (SCT), using the speed profile of their tapping behavior. We found a linear increase in the variance of pause-duration as a function of interval, while the variance of the motor implementation was relatively constant across intervals. In fact, 96
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Yi, Muqing, David Weaver, and György Hajnóczky. "Control of mitochondrial motility and distribution by the calcium signal." Journal of Cell Biology 167, no. 4 (2004): 661–72. http://dx.doi.org/10.1083/jcb.200406038.

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Mitochondria are dynamic organelles in cells. The control of mitochondrial motility by signaling mechanisms and the significance of rapid changes in motility remains elusive. In cardiac myoblasts, mitochondria were observed close to the microtubular array and displayed both short- and long-range movements along microtubules. By clamping cytoplasmic [Ca2+] ([Ca2+]c) at various levels, mitochondrial motility was found to be regulated by Ca2+ in the physiological range. Maximal movement was obtained at resting [Ca2+]c with complete arrest at 1–2 μM. Movement was fully recovered by returning to re
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Crevecoeur, F., and M. Gevers. "Filtering Compensation for Delays and Prediction Errors during Sensorimotor Control." Neural Computation 31, no. 4 (2019): 738–64. http://dx.doi.org/10.1162/neco_a_01170.

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Compensating for sensorimotor noise and for temporal delays has been identified as a major function of the nervous system. Although these aspects have often been described separately in the frameworks of optimal cue combination or motor prediction during movement planning, control-theoretic models suggest that these two operations are performed simultaneously, and mounting evidence supports that motor commands are based on sensory predictions rather than sensory states. In this letter, we study the benefit of state estimation for predictive sensorimotor control. More precisely, we combine expl
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Platz, Thomas, and Karl-Heinz Mauritz. "Syndrome-Specific Deficits of Performance and Effects of Practice on Arm Movements with Deafferentation due to Posterior Thalamic Lesion." Behavioural Neurology 10, no. 1 (1997): 15–19. http://dx.doi.org/10.1155/1997/354967.

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Aiming and tapping movements were analysed repeatedly over a three-week period in a patient who was hemideafferented due to an ischaemic posterior thalamic lesion. Contrasting behaviour observed in six healthy subjects, nine hemiparetic patients and one patient with hemianopic stroke, allowed the determination of behavioural deficits related to deafferentation. Finger tapping was not impaired specifically and did not improve with practice in the deafferented patient. When aiming movements were investigated, accuracy of the first, largely preprogrammed, phase of movement and timing of the late
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Masapollo, Matthew, and Susan Nittrouer. "Control parameters for coordinative structures in speech production." Journal of the Acoustical Society of America 155, no. 3_Supplement (2024): A335. http://dx.doi.org/10.1121/10.0027723.

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In skilled speech production, sets of articulators work cooperatively to achieve task-specific movement goals, despite rampant contextual variation. Efforts to understand these functional units, termed coordinative structures, have focused on identifying the essential control parameters responsible for allowing articulators to achieve these goals, with some research focusing on temporal parameters (relative timing of movements) and other research focusing on spatiotemporal parameters (phase angle of movement onset for one articulator, relative to another). Here, we compared findings across thr
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Radach, Ralph, Heiner Deubel, and Dieter Heller. "Attention, saccade programming, and the timing of eye-movement control." Behavioral and Brain Sciences 26, no. 4 (2003): 497–98. http://dx.doi.org/10.1017/s0140525x03430100.

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E-Z Reader achieves an impressive fit of empirical eye movement data by simulating core processes of reading in a computational approach that includes serial word processing, shifts of attention, and temporal overlap in the programming of saccades. However, when common assumptions for the time requirements of these processes are taken into account, severe constraints on the time line within which these elements can be combined become obvious. We argue that it appears difficult to accommodate these processes within a largely sequential modeling framework such as E-Z Reader.
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Zhao, Yangke, Chuansheng Chen, and Xiuying Qian. "The Role of Hand Movement in Spatial Serial Order Memory." Multisensory Research 33, no. 3 (2020): 313–35. http://dx.doi.org/10.1163/22134808-20191350.

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Abstract Research on serial order memory has traditionally used tasks where participants passively view the items. A few studies that included hand movement showed that such movement interfered with serial order memory. In the present study of three experiments, we investigated whether and how hand movements improved spatial serial order memory. Experiment 1 showed that manual tracing (i.e., hand movements that traced the presentation of stimuli on the modified eCorsi block tapping task) improved the performance of backward recall as compared to no manual tracing (the control condition). Exper
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Han, Yonglin, Qing Tao, and Xiaodong Zhang. "Multijoint Continuous Motion Estimation for Human Lower Limb Based on Surface Electromyography." Sensors 25, no. 3 (2025): 719. https://doi.org/10.3390/s25030719.

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The estimation of multijoint angles is of great significance in the fields of lower limb rehabilitation, motion control, and exoskeleton robotics. Accurate joint angle estimation helps assess joint function, assist in rehabilitation training, and optimize robotic control strategies. However, estimating multijoint angles in different movement patterns, such as walking, obstacle crossing, squatting, and knee flexion–extension, using surface electromyography (sEMG) signals remains a challenge. In this study, a model is proposed for the continuous motion estimation of multijoint angles in the lowe
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Walton, Mark M. G., Bernard Bechara, and Neeraj J. Gandhi. "Role of the Primate Superior Colliculus in the Control of Head Movements." Journal of Neurophysiology 98, no. 4 (2007): 2022–37. http://dx.doi.org/10.1152/jn.00258.2007.

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One important behavioral role for head movements is to assist in the redirection of gaze. However, primates also frequently make head movements that do not involve changes in the line of sight. Virtually nothing is known about the neural basis of these head-only movements. In the present study, single-unit extracellular activity was recorded from the superior colliculus while monkeys performed behavioral tasks that permit the temporal dissociation of gaze shifts and head movements. We sought to determine whether superior colliculus contains neurons that modulate their activity in association w
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Borhani, Khatereh, Brianna Beck, and Patrick Haggard. "Choosing, Doing, and Controlling: Implicit Sense of Agency Over Somatosensory Events." Psychological Science 28, no. 7 (2017): 882–93. http://dx.doi.org/10.1177/0956797617697693.

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Sense of agency—a feeling of control over one’s actions and their outcomes—might include at least two components: free choice over which outcome to pursue and motoric control over the action causing the outcome. We orthogonally manipulated locus of outcome choice (free or instructed choice) and motoric control (active or passive movement), while measuring the perceived temporal attraction between actions and outcomes ( temporal binding) as an implicit marker of agency. Participants also rated stimulus intensity so that we could measure sensory attenuation, another possible implicit marker of a
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Huang, Ying-Zu, Yao-Shun Chang, Miao-Ju Hsu, Alice M. K. Wong, and Ya-Ju Chang. "Restoration of Central Programmed Movement Pattern by Temporal Electrical Stimulation-Assisted Training in Patients with Spinal Cerebellar Atrophy." Neural Plasticity 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/462182.

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Disrupted triphasic electromyography (EMG) patterns of agonist and antagonist muscle pairs during fast goal-directed movements have been found in patients with hypermetria. Since peripheral electrical stimulation (ES) and motor training may modulate motor cortical excitability through plasticity mechanisms, we aimed to investigate whether temporal ES-assisted movement training could influence premovement cortical excitability and alleviate hypermetria in patients with spinal cerebellar ataxia (SCA). The EMG of the agonist extensor carpi radialis muscle and antagonist flexor carpi radialis musc
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Bronner, Shaw, Terry R. Kaminski, and Andrew M. Gordon. "Effect of Anterior Cruciate Ligament Reconstruction on the Passé Movement in Elite Dancers." Journal of Dance Medicine & Science 6, no. 4 (2002): 110–18. http://dx.doi.org/10.1177/1089313x0200600402.

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Semitendinosus-gracilis (STG) and patella-tendon-bone (PTB) are frequently selected grafts for anterior cruciate ligament (ACL) reconstruction in dancers. While STG and PTB grafts appear to be similar in restoring acceptable mechanical joint stability, it is not known whether there are alterations in the kinematics of dance movements following these procedures. The present study examined two-dimensional kinematics of trunk-lower extremity coordination in 18 adult professional dancers: six dancers with STG, six with PTB graft ACL reconstruction, and six healthy controls. All dancers with ACL re
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Field, Edelle C., and Paul S. G. Stein. "Spinal Cord Coordination of Hindlimb Movements in the Turtle: Interlimb Temporal Relationships During Bilateral Scratching and Swimming." Journal of Neurophysiology 78, no. 3 (1997): 1404–13. http://dx.doi.org/10.1152/jn.1997.78.3.1404.

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Field, Edelle C. and Paul S. G. Stein. Spinal cord coordination of hindlimb movements in the turtle: interlimb temporal relationships during bilateral scratching and swimming. J. Neurophysiol. 78: 1404–1413, 1997. Hindlimb interlimb coordination was examined in turtles during symmetrical “same-form” behaviors in which both hindlimbs utilized the same movement strategy (“form”) and during asymmetric “mixed-form” behaviors in which the form exhibited by one hindlimb differed from that of its contralateral partner. In spinal turtles, three forms of scratching were examined: rostral, pocket, and c
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van der Weel, F. R. (Ruud), Ingemārs Sokolovskis, Vicente Raja, and Audrey L. H. van der Meer. "Neural Aspects of Prospective Control through Resonating Taus in an Interceptive Timing Task." Brain Sciences 12, no. 12 (2022): 1737. http://dx.doi.org/10.3390/brainsci12121737.

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High-density electroencephalography from visual and motor cortices in addition to kinematic hand and target movement recordings were used to investigate τ-coupling between brain activity patterns and physical movements in an interceptive timing task. Twelve adult participants were presented with a target car moving towards a destination at three constant accelerations, and an effector dot was available to intercept the car at the destination with a swift movement of the finger. A τ-coupling analysis was used to investigate involvement of perception and action variables at both the ecological s
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