Hand Dominance, Attention, and the Choice between Responses

1978 ◽  
Vol 30 (3) ◽  
pp. 407-416 ◽  
Author(s):  
Patrick Rabbitt
Keyword(s):  
Attentional Bias ◽  
Attentional Biases ◽  
Horizontal Line ◽  
Hand Dominance ◽  
Left Hand ◽  
Left Handed ◽  
Hands On ◽  
Repeated Use ◽  
The One ◽  
The Right

Thirty pairs of matched right- and left-handed subjects carried out a serial C.RT task involving reaches between 2.4 cm square contact grids set at 2.4 cm intervals in a horizontal line. In one condition they responded with the right hand alone, in a second with the left and in a third they had to choose between hands on each trial responding to left side grids with the left hand and to right side grids with the right. All subjects took longer to respond when they had to choose between hands than when they used either hand alone. In the one-hand conditions neither group showed any effect of hand dominance. When choices had to be made between hands both groups responded faster with their dominant than with their nondominant hands. Analysis of the results was undertaken in terms of two hypothetical systems of instructions which might control machines designed to carry out similar tasks. It is concluded that in some tasks hand dominance can be described in terms of an attentional bias towards the field of operation of one effector rather than another. In the present task the effects of such possible attentional biases were shown not to interact with other effects, such as the facilitation of successive responses by repeated use of the same limb. These latter effects seem to depend on processes underlying execution of responses rather than choices between responding limbs.

Effects of ipsilateral and crossed eye-hand dominance on catching performance in prepubescents

2017 ◽  
Vol 4 (5) ◽  
pp. 41-48
Author(s):  
M. Akif Ziyagil ◽  
Inci Kesilmiş ◽  
Nevzat Demirci ◽  
M. Melih Kesilmiş
Keyword(s):  
Physical Activity ◽  
Hand Dominance ◽  
Mean Values ◽  
Left Hand ◽  
Left Handed ◽  
Eye Dominance ◽  
Right Hand ◽  
Significant Difference ◽  
The Mean ◽  
The Right

This study investigates the effects of ipsilateral and crossed hand-eye dominance on one and both hands catching performance (OHCP and BHCP) in participants aged 10 to 13 years. The combined groups including hand and eye dominance consisted of right handed-right eyed (RHRE), right handed-left eyed (RHLE), left handed-left eyed (LHLE) and left handed-right eyed (LHRE), respectively. In this study the mean values were only higher in the favor of LHLE females in left hand OHCP from 2 and 3 m distances. In other side, LHLE males had a higher mean values not only in left hand OHCP from 2 and 3 meters but also in the right hand OHCP from 3 meters. No significant difference was observed in BHCP among four groups in both genders. In conclusion, ipsilateral handeye dominance is an advantage for OHCP compared to cross dominance. Also left side had an advantage compare to the right side in OHCP. Keywords: Hand dominance; physical activity; gender.

A Dissociation between the Representation of Tool-use Skills and Hand Dominance: Insights from Left- and Right-handed Callosotomy Patients

2005 ◽  
Vol 17 (2) ◽  
pp. 262-272 ◽  
Author(s):  
Scott H. Frey ◽  
Margaret G. Funnell ◽  
Valerie E. Gerry ◽  
Michael S. Gazzaniga
Keyword(s):  
Left Hemisphere ◽  
Tool Use ◽  
Right Hemisphere ◽  
Hand Dominance ◽  
Conceptual Level ◽  
Left Hand ◽  
Left Handed ◽  
Contralateral Hand ◽  
Left And Right ◽  
The Right

The overwhelming majority of evidence indicates that the left cerebral hemisphere of right-handed humans is dominant both for manual control and the representation of acquired skills, including tool use. It is, however, unclear whether these functions involve common or dissociable mechanisms. Here we demonstrate that the disconnected left hemispheres of both right- and left-handed split-brain patients are specialized for representing acquired tool-use skills. When required to pantomime actions associated with familiar tools (Experiment 2), both patients show a right-hand (left hemisphere) advantage in response to tool names, pictures, and actual objects. Accuracy decreases as stimuli become increasingly symbolic when using the left hand (right hemisphere). Tested in isolation with lateralized pictures (Experiment 3), each patient's left hemisphere demonstrates a significant advantage over the right hemisphere for pantomiming tool-use actions with the contralateral hand. The fact that this asymmetry occurs even in a left-handed patient suggests that the left hemisphere specialization for representing praxis skills can be dissociated from mechanisms involved in hand dominance located in the right hemisphere. This effect is not attributable to differences at the conceptual level, as the left and right hemispheres are equally and highly competent at associating tools with observed pantomimes (Experiment 4).

Handedness and Dementia

1987 ◽  
Vol 65 (1) ◽  
pp. 207-210 ◽  
Author(s):  
Richard I. Naugle ◽  
Erin D. Bigler ◽  
C. Munro Cullum ◽  
Paul J. Massman
Keyword(s):  
Hand Dominance ◽  
Left Hand ◽  
Left Handed ◽  
Dementia Patients ◽  
The Difference ◽  
The Right

Some researchers have speculated that left-hand dominance is more prevalent among patients suffering from dementia of the Alzheimer's type which began prior to age 65 yr. and that, in those patients, the disease runs a more rapid course. In the present study, seven left-handed dementia patients were matched with seven right-handed dementia patients on the basis of age and years of education and were compared with regard to neuropsychological compromise. While the left-handed group was somewhat more impaired than the right-handed subjects, the difference between the two groups was not statistically significant.

The State Policy towards the Homeless in Moldova between the ‘Left Hand’ and the ‘Right Hand’. The Case of Chișinău Shelter

Südosteuropa ◽  
2019 ◽  
Vol 67 (2) ◽  
pp. 175-195
Author(s):  
Petru Negură
Keyword(s):  
Homeless People ◽  
Severe Disabilities ◽  
The State ◽  
Small Scale ◽  
Left Hand ◽  
Right Hand ◽  
Binary Approach ◽  
The One ◽  
The Right ◽  
Depth Interviews

Abstract The Centre for the Homeless in Chișinău embodies on a small scale the recent evolution of state policies towards the homeless in Moldova (a post-Soviet state). This institution applies the binary approach of the state, namely the ‘left hand’ and the ‘right hand’, towards marginalised people. On the one hand, the institution provides accommodation, food, and primary social, legal assistance and medical care. On the other hand, the Shelter personnel impose a series of disciplinary constraints over the users. The Shelter also operates a differentiation of the users according to two categories: the ‘recoverable’ and those deemed ‘irrecoverable’ (persons with severe disabilities, people with addictions). The personnel representing the ‘left hand’ (or ‘soft-line’) regularly negotiate with the employees representing the ‘right hand’ (‘hard-line’) of the institution to promote a milder and a more humanistic approach towards the users. This article relies on multi-method research including descriptive statistical analysis with biographical records of 810 subjects, a thematic analysis of in-depth interviews with homeless people (N = 65), people at risk of homelessness (N = 5), professionals (N = 20) and one ethnography of the Shelter.

Mixed Handedness and Achievement Test Scores of Middle School Boys

2008 ◽  
Vol 107 (2) ◽  
pp. 497-506
Author(s):  
P. S. B. Sarma
Keyword(s):  
Middle School ◽  
At Risk ◽  
Test Scores ◽  
Fourth Grade ◽  
Achievement Test ◽  
Normal Curve ◽  
Left Hand ◽  
Left Handed ◽  
Academic Deficits ◽  
The Right

The purpose of the study was to replicate findings of an earlier study of fourth grade boys manifesting mixed handedness with a sample. Among 32 mixed-handed boys in Grades 6 to 8, the right-handed writer, left-handed thrower group obtained low spelling scores (Normal Curve Equivalent Scores) on the California Achievement Test significantly more frequently than the left-handed writer, right-handed thrower group. These findings are consistent with data for Grade 4 boys in the earlier study. Findings strengthen the hypotheses that mixed handedness is not a unitary neuropsychological entity and that boys who write with the right hand and throw with the left hand might be at risk for certain academic deficits.

Learning to Solve a Business Problem: ‘Hands-on’ Can Get Results

2007 ◽  
Vol 21 (6) ◽  
pp. 465-471 ◽  
Author(s):  
Robyn Neeson ◽  
Leo Billington ◽  
Rowena Barrett
Keyword(s):  
Small Business ◽  
Business Owner ◽  
Business Growth ◽  
Small Business Owner ◽  
Business Training ◽  
Hands On ◽  
Small Business Training ◽  
The One ◽  
The Individual ◽  
The Right

Small business training can facilitate business growth. The authors show that a ‘hands-on’ approach can have a direct impact on a business owner's current situation. They consider this in relation to the problem of being unable to find the right staff, demonstrating that a programme such as the one they describe enables learning and addresses the lack of time and resources faced by many small business owner-managers. Such programmes also accommodate the style, pace and circumstances of the individual learner. This has a number of implications for the delivery of training to small business owner-managers.

scholarly journals Hand Preference and Creativity of Papua University Student

2022 ◽  
Vol 8 (1) ◽  
pp. 257-262
Author(s):  
Vionita Putri ◽  
Elda Irma Jeanne Joice Kawulur ◽  
Febriza Dwiranti ◽  
Sabarita Sinuraya ◽  
Sita Ratnawati
Keyword(s):  
Hand Preference ◽  
University Student ◽  
Creative People ◽  
Left Hand ◽  
Adjective Check List ◽  
Left Handed ◽  
Males And Females ◽  
Papua Barat ◽  
The Right ◽  
Descriptive Method

Human has a preference to use their hands for various manual activities. Left-handed preference is people who tend to use their left hand to perform various manual activities, while right-handed people tend to use right-handed. Any researches show that the left-handed preference for more creativity was influenced by the dominant use of the right brain and bigger corpus callosum. The research aims to determine the percentage of left-handed preference and their creativity in Universitas Papua, Manokwari Papua Barat. The method used in this research is the descriptive method. Data collection used a questionnaire to evaluate individual hand preference using Handedness Questionnaire and to determine individual creativity using Adjective Check List. The percentage of left-handed people in UNIPA were 9.3% or lower than right-handed and higher than ambidextrous. Our study supports the statement about selection in handedness in the traditional society which showed a higher percentage of left-hander as advantages related to using hand intensively.  The percentage of left-handed males and females was almost equal and strongly left-handed was higher in females. The percentage of creative people was higher in left-handed, especially in males

Piano Concertos for the Left Hand by Ravel and Prokofiev: Two Answers to One Order

2020 ◽  
pp. 67-91
Author(s):  
В.И. Чернышов
Keyword(s):  
Significant Contribution ◽  
Maurice Ravel ◽  
Musical Language ◽  
Sergei Prokofiev ◽  
Piano Concerto ◽  
Left Hand ◽  
Left Handed ◽  
Piano Literature ◽  
The One ◽  
Piano Concertos

Пианист Пауль Витгенштейн, желая расширить и обновить свой концертный репертуар, внес в XX веке существенный вклад в фортепианную литературу для левой руки. В 1929–1930 годах он заказывает фортепианный концерт сначала Морису Равелю, а затем Сергею Прокофьеву. Это оказалось возможным благодаря наследству, полученному пианистом после смерти отца — сталелитейного магната Карла Витгенштейна. Если Равелю удалось, хоть и не полностью, удовлетворить потребности заказчика, то Прокофьеву было вовсе отказано в исполнении его музыки. Одной из главных причин неудачи Прокофьева можно считать творческий кризис конца зарубежного периода, когда композитор находился в поисках нового музыкального языка — «новой простоты». В статье прослеживается и сравнивается судьба этих произведений; устанавливаются причины сравнительной невостребованности концерта Прокофьева исполнителями; анализируется композиция, фортепианная фактура и техника, оркестровка. Освещены биографические факты из жизни Пауля Витгенштейна, а также непростые отношения между заказчиком и композиторами. In the twentieth century, the one-armed pianist Paul Wittgenstein made a significant contribution to piano literature for the left hand, which was due to his wish to broaden and update his concert repertoire. In 1929–1930 he ordered a left-handed piano concerto first to Maurice Ravel and then to Sergei Prokofiev. It was possible through the inheritance that Wittgenstein received after the death of his father, the steel magnate Karl Wittgenstein. While Ravel was able to meet the client’s needs, though not completely, Prokofiev was completely denied the performance of his music. One of the main reasons for Prokofiev’s failure might be the creative crisis of the end of the foreign period, when the composer was in search of a new musical language — “the new simplicity”. The article traces and compares the destiny of these piano concertos, specifying the reasons for the relative lack of demand for Prokofiev’s left-handed concerto on behalf of performers. The article also analyzes music, piano texture and technique, form, orchestration of the lefthanded concertos. Special attention is paid to biographical facts from Paul Wittgenstein’s life, as well as uneasy relationship between the client and the composers.

scholarly journals Rapid feedback corrections during a bimanual postural task

2013 ◽  
Vol 109 (1) ◽  
pp. 147-161 ◽  
Author(s):  
Mohsen Omrani ◽  
Jörn Diedrichsen ◽  
Stephen H. Scott
Keyword(s):  
Sensory Feedback ◽  
Specific Information ◽  
Spatial Average ◽  
Electromyographic Activity ◽  
Dependent Manner ◽  
Left Hand ◽  
Motor Physiology ◽  
The One ◽  
The Right ◽  
Online Feedback

An important observation in motor physiology is that even the fastest feedback responses can be modified in a task-dependent manner. However, whether or not such responses in one limb can be modulated based on online sensory feedback from other limbs is still unknown. We tested this using a bimanual postural control task, in which the two hands either controlled two separate cursors (double-cursor task) or a single cursor displayed at the spatial average between the hands (single-cursor task). In the first experiment, the two hands were symmetrically perturbed outwards. In the double-cursor task, the participants therefore had to return their hands to the targets, whereas in the single-cursor task no correction was necessary. Within 50 ms, the electromyographic activity showed significantly smaller responses in the single- compared with the double-cursor task. In the second experiment, the perturbation direction of the left hand (inward/outward) was randomized, such that participants could not preplan their response before perturbation onset. Results show that the behavior of the right arm in the one-cursor task depended on online feedback coming from the left arm: the muscular response was modulated within 75 ms based on directionally specific information of the left arm. These results suggest that sensory feedback from one limb can quickly modify the perturbation response of another limb in a task-dependent manner.

Foot Performance of Right- and Left-Handers: A Question of Environmental Influence

1995 ◽  
Vol 80 (2) ◽  
pp. 671-674 ◽  
Author(s):  
Carl Gabbard ◽  
Susan Hart
Keyword(s):  
Environmental Influence ◽  
Hand Preference ◽  
Adequate Explanation ◽  
Driving Experience ◽  
Left Hand ◽  
Left Handed ◽  
Right Hand ◽  
Theoretical Perspectives ◽  
The Difference ◽  
The Right

Prior research has shown that right-handed adults perform better on a speed-tapping task with the right hand and right foot, while left-handers execute more rapidly with the left hand and right foot. Speculation is that environmental influence, most likely driving experience, may account for the right-foot bias. To examine this hypothesis further, 48 young right- and left-handed children were tested on a similar protocol. Analyses indicated no significant differences in foot performance within hand-preference groups. Since these findings do not complement reports for adults, factors such as experience or maturation might contribute to the difference. Were patterns similar, the effect of environmental influence would be assumed to be small. However, much more evidence is needed before an adequate explanation can be developed. The issue of possible environmental influence is discussed from various theoretical perspectives.

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