Bibliografías temáticas / Left- and right-handedness

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Literatura académica sobre el tema "Left- and right-handedness"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 1 de agosto de 2024

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Artículos de revistas sobre el tema "Left- and right-handedness"

Dane, Şenol y Mehmet Bayirli. "Correlations between Hand Preference and Durations of Hearing for Right and Left Ears in Young Healthy Subjects". Perceptual and Motor Skills 86, n.º 2 (abril de 1998): 667–72. http://dx.doi.org/10.2466/pms.1998.86.2.667.

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In this study, to test an inference from the 1991 Previc hypothesis that right-handers have a right-ear advantage, the durations of hearing for the right and left ears were compared for 81 right- and 45 left-handed high school students. In the present study, right-handedness was associated with a right-ear advantage and left-handedness was associated with a left-ear advantage. In addition, there was a significant positive correlation between the durations of hearing for the right and left ears and the scores for right-handedness for right-handed subjects. The durations of hearing for the right and left ears were negatively correlated with the left-handedness for left-handed subjects. These results suggest hand preference may be related to asymmetry of aural sensitivity.

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Rahman, Md Shamsur, Zubaida Gulshan Ara, Anjuman Ara, Rehana Parveen, Zeenatul Momena, Irin Parven y Taslima Begum. "Correlation of Handedness with Hand Shape Index in Right Hander and Left Hander Medical Students of Bangladesh". Community Based Medical Journal 11, n.º 1 (16 de junio de 2022): 14–20. http://dx.doi.org/10.3329/cbmj.v11i1.60263.

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This cross-sectional, analytical type of study was performed in Department of Anatomy, Dhaka Medical College, Bangladesh, from July 2016 to June 2017 on 52 right hander male and 52 right hander female, 40 left hander male and 34 left hander female Bangladeshi medical students. Convenient purposive sampling technique was adopted. History of any injury of upper limb was excluded to construct standard measurement. Handedness of each medical student was determined by the Edinburgh handedness inventory. Hand breadth and hand length was measured with the help of vernier caliper. Paired and unpaired student‟s „t‟ test and Pearson‟s correlation coefficient test were done for statistical analyses. Handedness score showed nonsignificant positive correlation with right hand shape index (r = +0.087, P>0.05) and left-hand shape index (r = +0.008, P>0.05) in right hander males. Handedness score showed non-significant negative correlation with right hand shape index (r = -0.017, P>0.05) and left-hand shape index (r = -0.003, P>0.05) in right hander females. Handedness score showed non-significant negative correlation with right hand shape index (r= - 0.210, P>0.05) and left-hand shape index (r = -0.247, P>0.05) in left hander males. Handedness score showed non-significant positive correlation with right hand shape index (r= +0.051, P>0.05) and left-hand shape index (r = +0.213, P>0.05) in left hander females. To summarize, handedness score showed nonsignificant positive correlation with right hand shape index and left-hand shape index in right hander males and left hander females. However, handedness score showed non-significant negative correlation with right hand shape index and left-hand shape index in right hander females and left hander males. CBMJ 2022 January: vol. 11 no. 01 P: 14-20

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Hashimoto, Takashi. "Molecular genetic analysis of left–right handedness in plants". Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences 357, n.º 1422 (29 de junio de 2002): 799–808. http://dx.doi.org/10.1098/rstb.2002.1088.

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Handedness in plant growth may be most familiar to us when we think of tendrils or twining plants, which generally form consistent right– or left–handed helices as they climb. The petals of several species are sometimes arranged like fan blades that twist in the same direction. Another less conspicuous example is ‘circumnutation’, the oscillating growth of axial organs, which alternates between a clockwise and an anti–clockwise direction. To unravel molecular components and cellular determinants of handedness, we screened Arabidopsis thaliana seedlings for helical growth mutants with fixed handedness. Recessive spiral1 and spiral2 mutants show right–handed helical growth in roots, hypocotyls, petioles and petals; semi–dominant lefty1 and lefty2 mutants show opposite left–handed growth in these organs. lefty mutations are epistatic to spiral mutations. Arabidopsis helical growth mutants with fixed handedness may be impaired in certain aspects of cortical microtubule functions, and characterization of the mutated genes should lead us to a better understanding of how microtubules function in left–right handedness in plants.

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Fritsche, Sarah A. y Annukka K. Lindell. "ON THE OTHER HAND: THE COSTS AND BENEFITS OF LEFT-HANDEDNESS". Acta Neuropsychologica 17, n.º 1 (12 de febrero de 2019): 69–86. http://dx.doi.org/10.5604/01.3001.0013.1689.

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Left-handers have been persecuted by right-handers for millennia. This right bias is evident cross-culturally, linguistically (right is literally and figuratively ‘right’, with lefties being described as ‘gauche’, ‘sinister’ and ‘cack-handed’), and environmentally (e.g., equipment design, including power tools, ticket machines, and lecture-room desks). Despite this, the proportion of left-handers has remained constant at approximately 10% of the hominid population, implying that though there are costs associated with left-handedness (if there were not, the proportions of left- and right-handers would be 50:50), left handers must also enjoy fitness advantages that maintain the genes for left-handedness in the population. This paper reviews the costs and benefits of being left-handed, exploring research examining the effects of handedness on brain structure, cognitive function, and human behaviour. The research confirms a variety of left-hander advantages, including some cognitive superiorities, higher wages, and greater sporting and fighting prowess. On the other hand, left-handedness is also associated with significant fitness costs, including an increased risk of accidents, higher substance abuse susceptibility, and earlier death, in comparison with right-handers. In sum, left-handedness confers both costs and benefits, with the latter outweighing the former, maintaining the genes for left-handedness in the population.

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Rodway, Paul, Curtis Rodway y Astrid Schepman. "Exploring Footedness, Throwing Arm, and Handedness as Predictors of Eyedness Using Cluster Analysis and Machine Learning: Implications for the Origins of Behavioural Asymmetries". Symmetry 16, n.º 2 (2 de febrero de 2024): 177. http://dx.doi.org/10.3390/sym16020177.

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Behavioural asymmetries displayed by individuals, such as hand preference and foot preference, tend to be lateralized in the same direction (left or right). This may be because their co-ordination conveys functional benefits for a variety of motor behaviours. To explore the potential functional relationship between key motor asymmetries, we examined whether footedness, handedness, or throwing arm was the strongest predictor of eyedness. Behavioural asymmetries were measured by self-report in 578 left-handed and 612 right-handed individuals. Cluster analysis of the asymmetries revealed four handedness groups: consistent right-handers, left-eyed right-handers, consistent left-handers, and inconsistent left-handers (who were left-handed but right-lateralized for footedness, throwing and eyedness). Supervised machine learning models showed the importance of footedness, in addition to handedness, in determining eyedness. In right-handers, handedness was the best predictor of eyedness, followed closely by footedness, and for left-handers it was footedness. Overall, predictors were more informative in predicting eyedness for individuals with consistent lateral preferences. Implications of the findings in relation to the origins and genetics of handedness and sports training are discussed. Findings are related to fighting theories of handedness and to bipedalism, which evolved after manual dexterity, and which may have led to some humans being right-lateralized for ballistic movements and left-lateralized for hand dexterity.

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Milenkovic, Sanja, Goran Belojevic, Katarina Paunovic y Dragana Davidovic. "Historical aspects of left-handedness". Srpski arhiv za celokupno lekarstvo 147, n.º 11-12 (2019): 782–85. http://dx.doi.org/10.2298/sarh190522095m.

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Lateralization is one of the central questions in neurology, neuropsychology, and other related scientific disciplines. There has been very little change in the proportion of left-handers since the Upper Paleolithic Age about 10,000 years ago and it is estimated to be around 10%. As the history of human thinking has developed from superstition to science, the explanation of left-handedness transformed from ?devil?s work? to neurological specificity. This paper presents this very interesting historical change by analyzing the data on left-handedness and the attitudes towards it in human societies from prehistory to today. Even in a relatively open-minded society, parents and teachers may encourage a left-handed child to switch to right-handedness to make their lives easier in a largely right-handed world. On the other hand, left-handedness is increasingly seen as a special gift, and left-handed people have started to favor themselves as more competent in relation to the right-handed people.

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Gut, Malgorzata, Andrzej Urbanik, Lars Forsberg, Marek Binder, Krystyna Rymarczyk, Barbara Sobiecka, Justyna Kozub y And Grabowska. "Brain correlates of right-handedness". Acta Neurobiologiae Experimentalis 67, n.º 1 (31 de marzo de 2007): 43–51. http://dx.doi.org/10.55782/ane-2007-1631.

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Recent development of neuroimaging techniques has opened new possibilities for the study of the relation between handedness and the brain functional architecture. Here we report fMRI measurements of dominant and non-dominant hand movement representation in 12 right-handed subjects using block design. We measured possible asymmetry in the total volume of activated neural tissue in the two hemispheres during simple and complex finger movements performed either with the right hand or with the left hand. Simple movements consisted in contraction/extension of the index finger and complex movements in successive finger-thumb opposition from little finger to index finger. A general predominance of left-hemisphere activation relative to right hemisphere activation was found. Increasing the complexity of the motor activity resulted in an enlargement of the volume of consistently activated areas and greater involvement of ipsilateral areas, especially in the left hemisphere. Movements of the dominant hand elicited large contralateral activation (larger than movements of the non-dominant hand) and relatively smaller ipsilateral activation. Movements of the non-dominant hand resulted in a more balanced pattern of activation in the two hemispheres, due to relatively greater ipsilateral activation. This suggests that the dominant (right) hand is controlled mainly by the contralateral (left) hemisphere, whereas the nondominant hand is controlled by both left and right hemispheres. This effect is especially apparent during execution of complex movements. The expansion of brain areas involved in motor control in the hemisphere contralateral to the dominant hand may provide neural substrate for higher efficiency and a greater motor skill repertoire of the preferred hand. Correspondence should be addressed to M.Gut, Email: m.gut@nencki.gov.pl

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Nakada, Tsutomu, Yukihiko Fujii y Ingrid L. Kwee. "Coerced training of the nondominant hand resulting in cortical reorganization: a high-field functional magnetic resonance imaging study". Journal of Neurosurgery 101, n.º 2 (agosto de 2004): 310–13. http://dx.doi.org/10.3171/jns.2004.101.2.0310.

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Object. The authors investigated brain strategies associated with hand use in an attempt to clarify genetic and nongenetic factors influencing handedness by using high-field functional magnetic resonance imaging. Methods. Three groups of patients were studied. The first two groups comprised individuals in whom handedness developed spontaneously (right-handed and left-handed groups). The third group comprised individuals who were coercively trained to use the right hand and developed mixed handedness, referred to here as trained ambidexterity. All trained ambidextrous volunteers were certain that they were innately left-handed, but due to social pressure had modified their preferred hand use for certain tasks common to the right hand. Although right-handed and left-handed volunteers displayed virtually identical cortical activation, involving homologous cortex primarily located contralateral to the hand motion, trained ambidextrous volunteers exhibited a clearly unique activation pattern. During right-handed motion, motor areas in both hemispheres were activated in these volunteers. During left-handed motion, the right supplemental motor area and the right intermediate zone of the anterior cerebellar lobe were activated significantly more frequently than observed in naturally right-handed or left-handed volunteers. Conclusions. The results provide strong evidence that cortical organization of spontaneously developed right- and left-handedness involves homologous cortex primarily located contralateral to the hand motion, and this organization is likely to be prenatally determined. By contrast, coerced training of the nondominant hand during the early stages of an individual's development results in mixed handedness (trained ambidexterity), indicating cortical reorganization.

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Milenkovic, Sanja, Goran Belojevic y Radojka Kocijancic. "Aetiological factors in left-handedness". Srpski arhiv za celokupno lekarstvo 133, n.º 11-12 (2005): 532–34. http://dx.doi.org/10.2298/sarh0512532m.

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Lateralisation associates the extremities and senses of one side of the body, which are connected by afferent and efferent pathways, with the primary motor and sensory areas of the hemisphere on the opposite side. Dominant laterality denotes the appearance of a dominant extremity or sense in the performance of complex psychomotor activities. Laterality is manifested both as right-handedness or left-handedness, which are functionally equivalent and symmetrical in the performance of activities. Right-handedness is significantly more common than left-handedness. Genetic theory is most widely accepted in explaining the onset of lateralisation. According to this theory, the models of brain organisation asymmetry (anatomical, functional, and biochemical) are strongly, genetically determined. However, the inability to clearly demonstrate the association between genetic factors and left-handedness has led researchers to investigate the effects of the environment on left-handedness. Of particular interest are the intrauterine environment and the factors influencing foetal development, of which hormones and ultrasound exposure are the most significant. It has been estimated that an extra five cases of nonright-handed lateralisation can be expected in every 100 males who were exposed to ultrasound in utero compared to those who were not. Socio-cultural pressure on left-handed individuals was much more severe in the past, which is confirmed by scientific findings that left-handedness is present in 13% of individuals in their twenties, while in less than 1% of individuals in their eighties.

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Marrion, Leslie V. y Lorne K. Rosenblood. "Handedness in the Kwakiutl Totem Poles: An Exception to 50 Centuries of Right-Handedness". Perceptual and Motor Skills 62, n.º 3 (junio de 1986): 755–59. http://dx.doi.org/10.2466/pms.1986.62.3.755.

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A survey of handedness in Kwakiutl Indian totem and house poles found 56% bihandedness, 24% left-handedness, and 20% right-handedness. These findings are in marked contrast to other research findings on artforms, which show about 90% right-handedness. In the previous studies no systematic variation in the incidence of right-handedness was found across time eras, cultures, or geographic location. This apparent consistency was interpreted as supporting an hypothesis that right-handedness is universal and physiological. However, the present authors' findings with regard to Kwakiutl handedness clearly refutes the notion of universal right-handedness in artforms. In the current Kwakiutl population, there is a strong indication that sociocultural and environmental factors may also strongly influence the expression of handedness.

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Tesis sobre el tema "Left- and right-handedness"

Ivanova, D., Оксана Робертівна Гладченко, Оксана Робертовна Гладченко y Oksana Robertivna Hladchenko. "Left- handedness versus right-handedness". Thesis, Sumy State University, 2020. https://essuir.sumdu.edu.ua/handle/123456789/77983.

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I am left-handed. I always wonder why people who write with their right hands react so violently seeing me operating with my left hand and often ask such questions as "How do you do this?", "Do you feel comfortable?" So I want to figure out how left-handed children differ from children who write with their right hand.

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Longo-Bartel, Martha Jane. "Left-handed teaching techniques for the right handed". CSUSB ScholarWorks, 2000. https://scholarworks.lib.csusb.edu/etd-project/1681.

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Left-handedness is an invisible handicap in today's classrooms. The education systsem in the United States makes special considerations and accommodations for special needs of students, yet left-handed individuals do not receive much consideration in a mainstream classroom. Experts say that up to twenty percent of children in Canada and the United States are left-handed. This project discusses how these left-handed children have to work in a right-handed world. The focus of this study was to provide right-handed teachers with teaching techniques, positive suggestions, and common sense approaches to accomodate the left-handed pupil.

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Smythe, Pamela. "Aspects of phonological processing in sub-groups of left and right handedness". Thesis, University of Leicester, 2002. http://hdl.handle.net/2381/31348.

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This thesis was begun with two intentions. The first was to test a hypothesis of the Annett Right Shift Theory (1972, 1985) that people with poor phonology are less biased to right-handedness than the general population. The second was to establish whether to reduced bias to dextrality applies to deficits in all types of phonological processing. Evidence for an association between poor phonological processing and reduced dextrality was demonstrated in an age cohort of schoolchildren and in two large undergraduate samples. Cases of 'pathological' handedness are unlikely to have caused the association as, in children, the differences increased when those with slow hand skill and poor vocabularies were removed. Support for a genetic influence upon phonological processing was found when groups of children and undergraduates with varying phonological ability also varied for their relatives' handedness. Although, as expected, undergraduates with problems with nonword rhyme were more often left-handed and had more left handed relatives, against predictions, those with phoneme discrimination difficulties were much more dextral in handedness and had fewer left handed relatives. These interesting results were further investigated and poor ability in either phonological production/segmentation or rhyme/awareness was found to be associated with a reduced shift to dextrality. Finally an atypical pattern in dichotic listening (equal errors at each ear) was associated with phonological awareness difficulties, as was the atypical pattern of absence of shift to dextrality in handedness. The findings suggest that poor phonological awareness or phonological production/segmentation could be a risk in the rs - genotype and minor phoneme perception problems could be a disadvantage for the rs++ genotype. It is also suggested that the latter could be part of a multi-sensory problem (Stein and Walsh, 1997). These questions are discussed further and the contributions, limitations and implications of the work are reviewed.

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Butler, Michael. "The effects of depth processing and handedness on episodic memory /". Connect to Online Resource-OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1177948630.

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Thesis (M.A.)--University of Toledo, 2007.
Typescript. "Submitted as partial fulfillment of the requirements for the Master of Arts in Psychology." "A thesis entitled"--at head of title. Bibliography: leaves 20-22.

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Xie, Jiawei. "Writing Chinese Characters: Right or Left? : The Chinese Discriminatory Policy of Left-Handedness Correction in Terms of Handwriting". Thesis, Linköpings universitet, Centrum för tillämpad etik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-129186.

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Chinese left-handed are found to be very few, especially in terms of handwriting. The Chinese educational policy that fully entitles teachers in primary school to change the left-handed students to write with their right-hand, by nudging and even force, is found to be mainly blamed as the main cause. The thesis is to raise the ethical discussion and define this policy as being discriminatory against the left-handed by checking the features, definition and identification of discrimination, and reasons forming and supporting such a discriminatory policy will be taken into the major consideration as the source of discrimination. Therefore, the thesis is to propose solutions to help with the abolishment of the policy and the elimination of the prejudicial attitudes toward the left-handed, especially in terms of writing. The thesis itself, due to the limit of previous research and scientific support, has its own blindness or disadvantage, however, such a work could be helpful with the later discussion.

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Shek, Wing-yi y 石詠儀. "Research into handedness and language dominance in Hong Kong". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45161872.

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Dragovic, Milan. "Measurement, classification and conceptualisation of atypical handedness in schizophrenia". University of Western Australia. School of Psychiatry and Clinical Neurosciences, 2005. http://theses.library.uwa.edu.au/adt-WU2005.0071.

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[Truncated abstract] Atypical handedness is found to be more prevalent in schizophrenia patients than in psychiatric and normal controls, suggesting atypical brain lateralisation, particularly of regions associated with language. This ‘behavioural aberration’ is commonly considered as a marker of disturbed neurodevelopment, which is usually indexed by minor physical abnormalities. A prevailing view in the literature is that the atypical lateralisation of hand preference provides an additional index for the neurodevelopmental hypothesis of schizophrenia. Consistent with this hypothesis, an atypical lateralisation of hand preferences can also be considered as a consequence of environmental agents that might have interfered with early embryonic development. Notwithstanding the above, an atypical lateralisation of hand preferences can occur as a result of genetic factors as well as an interaction between genetic and environmental factors. The overall objective of this thesis was to advance existing knowledge on atypical laterality in schizophrenia by addressing its various (though related) aspects, including measurement, classification and conceptualisation. Atypical lateralisation of hand preferences in schizophrenia patients was approached by five separate studies. ... Overall, this thesis argues that the causes of atypical lateralisation of hand preferences are due to combined genetic and environmental factors and that its use as a marker of vulnerability to schizophrenia is limited. A cautious interpretation of various associations between the laterality and other measures, particularly cognitive measures, is advised until a broad agreement on the true nature of handedness is reached.

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Hladik, Amber Elizabeth. "An online community helping left-handed right brained students succeed". CSUSB ScholarWorks, 2007. https://scholarworks.lib.csusb.edu/etd-project/3214.

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The purpose of this project is to develop a website that helps left handed students, their parents, and teachers to help left-handers, whether they are left-or-right-brain dominant, succeed. This website will be a tool to get to know their children and students better. The project consists of a paper and a website to educate about left-handed people.

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Martínez, Daniel. "Sex and handedness effects on cognitive abilities". CSUSB ScholarWorks, 1987. https://scholarworks.lib.csusb.edu/etd-project/355.

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Walker, Kenneth N. (Kenneth Neal). "Differential Effects of Biofeedback Input on Lowering Frontalis Electromyographic Levels in Right and Left Handers". Thesis, University of North Texas, 1990. https://digital.library.unt.edu/ark:/67531/metadc331405/.

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This investigation was an attempt to replicate and expand previous research which suggested that laterality of electromyographic biofeedback input had a significant effect in lowering frontalis muscle activity. In 1984 Ginn and Harrell conducted a study in which they reported that subjects receiving left ear only audio biofeedback had significantly greater reductions in frontalis muscle activity than those receiving right ear only or both ear feedback. This study was limited to one biofeedback session and subjects were selected based on demonstration of right hand/ear dominance. The purpose of the present study was to determine whether the left ear effect reported by Ginn and Harrell could be replicated. Furthermore, the current investigation sought to extend the previous finding to left handed subjects and explore the stability of the effect, if found, by adding a second biofeedback session. Subjects were 96 students recruited from undergraduate psychology classes. They were screened for handedness by the Edinburgh Handedness Inventory which resulted in identification of 48 right handers and 48 left handers. Subjects were randomly assigned to one of four groups consisting of left ear feedback, right ear feedback, both ears feedback, and controls. This resulted in eight conditions. Analysis of variance of microvolt changes from baseline found no statistically significant differences between groups. An examination of the rank order of the data reveal a left ear group performance in the same direction as those reported by Ginn and Harrell (1984).

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Libros sobre el tema "Left- and right-handedness"

Kraus, Elke. Beyond Left and Right Handedness. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-24389-9.

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Lindsay, Rae. Left is right: The survival guide for living lefty in a right-handed world. Englewood Cliffs, N.J: Gilmour House, 1996.

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Bishop, Dorothy. Handedness and developmental disorder. Hove: Lawrence Erlbaum Associates, 1990.

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Bishop, Dorothy. Handedness and developmental disorder. London: Mac Keith, 1990.

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Dunham, James y Todd Davenport. Handedness: Theories, genetics, and psychology. Hauppauge, N.Y: Nova Science Publishers, 2012.

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Donovan, Nick. Left-handedness (living in a right-handed world). London: LCP, 1986.

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Paul, Diane. Living left-handed. London: Bloomsbury, 1990.

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Ruebeck, Christopher S. Handedness and earnings. Cambridge, Mass: National Bureau of Economic Research, 2006.

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Clarke, Ginny. Left-handed children: The teacher's guide. London (57 Brewer St., W1R3FB): Left-Handers Club, 1995.

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Šakotić, Nada. Ljevorukost u osnovnoj školi. Podgorica: Unireks, 2005.

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Capítulos de libros sobre el tema "Left- and right-handedness"

Kraus, Elke. "Left Handedness". En Beyond Left and Right Handedness, 61–80. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-24389-9_4.

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Kraus, Elke. "Mixed Handedness". En Beyond Left and Right Handedness, 81–100. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-24389-9_5.

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Kraus, Elke. "Assessing Handedness". En Beyond Left and Right Handedness, 105–26. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-24389-9_6.

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Kraus, Elke. "Interpreting Handedness Profiles Using the Handedness Typology". En Beyond Left and Right Handedness, 183–212. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-24389-9_10.

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Kraus, Elke. "The Emergence of Handedness". En Beyond Left and Right Handedness, 3–18. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-24389-9_1.

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Kraus, Elke. "Co-determinants of Handedness". En Beyond Left and Right Handedness, 41–59. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-24389-9_3.

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Kraus, Elke. "Developing the Handedness Profile 2018". En Beyond Left and Right Handedness, 151–74. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-24389-9_8.

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Kraus, Elke. "Proposing an Architecture for a Handedness Typology". En Beyond Left and Right Handedness, 175–81. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-24389-9_9.

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Kraus, Elke. "Intervention Strategies for Atypical Handedness and Related Problems". En Beyond Left and Right Handedness, 217–34. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-24389-9_11.

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Kraus, Elke. "Neural Asymmetries". En Beyond Left and Right Handedness, 19–39. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-24389-9_2.

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Actas de conferencias sobre el tema "Left- and right-handedness"

Lagonikaki, Maria. "Influence of manual preference on the line-bisection performance in 3-6 years old children". En 8th International e-Conference on Studies in Humanities and Social Sciences. Center for Open Access in Science, Belgrade, 2022. http://dx.doi.org/10.32591/coas.e-conf.08.18199l.

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One hundred and seventy-eight children (range 3,4 – 6,7 years old), who were classified as either right-handed, left-handed, or mixed-handed, performed line-bisection task twice – with the left and the right hand, respectively. The results showed that at the group level, all three handedness groups demonstrated a leftward bias when bisect with the left hand and a rightward bias when bisect with the right hand, but to varying degrees, with the right-handed group exhibiting significantly the biggest leftward error with the left hand and the smallest rightward error with the right hand. In addition, although the highest percentage of children in all three handedness groups showed symmetrical neglect, the incidence of right pseudoneglect was significantly higher in the right-handed group and vice versa – the incidence of left neglect was higher in the two non-right-handed groups. The pattern of the results suggested less lateralized visual spatial attention in left-handed 3,4 – 6,7 years old than in right-handed their peers.

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Qin, Jiaolong, Wei Wang, Chaoyi Pang y Liming Tang. "Discriminative Analysis of Cerebral Motor Function Tissue for Left and Right Handedness Based on DTI". En 2011 First International Workshop on Complexity and Data Mining (IWCDM). IEEE, 2011. http://dx.doi.org/10.1109/iwcdm.2011.24.

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Propper, Ruth, R. Jordan Hinson y Amelia Kinsella. "Non-right-handedness as a contributor to incidents/accidents reported within the Aviation Safety Reporting System". En 15th International Conference on Applied Human Factors and Ergonomics (AHFE 2024). AHFE International, 2024. http://dx.doi.org/10.54941/ahfe1005201.

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Individual differences in hand use preference are associated with individual differences in cognition, emotion, and behavior. Additional work suggests that non-right-handers (NRH) are more accident prone generally, more likely to suffer from a physical accident resulting in head or severe injury, are involved in more car accidents, and die earlier than righthanders (RH). It is unclear what causal factors result in these accident-related differences between handedness groups, but likely there is an interplay between both cognition and environment. Additionally, the ‘right-hand world hypothesis’ suggests that the environment is constructed in a manner that is implicitly biased toward right-handers, resulting in physical constraints on NRH performance. Given these differences between RH and NRH, the current work sought to determine if NRH was associated with incidents in air transportation as reported via the Aviation Safety Reporting System (ASRS), a public database consisting of voluntary safety reports about aviation safety events. Out of 225,897 reports from January 1988 to September 2023, two reports referred to left-handedness as being detrimental to performance as a result of the configuration of the environment. Broadly, results suggest limited impacts of NRH on ASRS reported incidents, though study limitations may result in underestimation of NRH-incident relationships.

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Majewski, Alexander J. y Martin Sanzari. "A Novel Method for Measuring the Optical Activity of Biopolymers and Application in Measuring Denaturation of Type I Collagen". En ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-2581.

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Abstract Optical Activity is defined as a property, in which a substance will absorb incident (optical) radiation and / or change its polarization state. Molecules of this type are known as chiral (its mirror image cannot be superimposed upon itself i.e. the molecule has a handedness). Optical Rotatory Dispersion (circular birefringence) occurs when a material exhibits a difference in its index for right-handed (nR) or left-handed (nL) circularly polarized light. In terms of the indices of refraction, the observed rotation is defined as: α = (πd/λo) (nL − nR). Where: nL = index of refraction for left-handed polarization; nR = index of refraction for right-handed polarization; d = path length (sample thickness); λo = wavelength of incident radiation measured in vacuum. We have developed and tested a new instrument that measures the optical rotatory properties of biopolymers. The advantage of this instrument is that it allows a real time measurement of the optical activity of biopolymers; which can be used to monitor samples for changes of state. By using a differential measurement scheme, system errors are minimized and resolution is increased over current measurement techniques. A study of the denaturation process of type I collagen will be presented.

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