LATERAL DIFFERENCES IN KINESTHESIS: THE INFLUENCE OF HANDEDNESS, GENDER AND DELAY INTERVAL.
Item
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Title
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LATERAL DIFFERENCES IN KINESTHESIS: THE INFLUENCE OF HANDEDNESS, GENDER AND DELAY INTERVAL.
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Identifier
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AAI8319786
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identifier
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8319786
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Creator
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NADLER, LESLIE GARY.
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Contributor
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Doreen Berman
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Date
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1983
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Language
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English
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Publisher
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City University of New York.
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Subject
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Psychology, Physiological
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Abstract
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This study investigated the influence of handedness, gender and delay interval on lateral differences in replication of a horizontal arm movement, a task which is assumed to assess one aspect of kinesthetic sensitivity.;The subjects were 20 right-handed and 20 left-handed college students. Handedness of subjects was determined by responses to a handedness questionnaire and by familial handedness history. Within each handedness group there were an equal number of men and women subjects.;Data were subjected to six-way analyses of variance, one each for absolute error, constant error and variable error. These analyses showed no significant difference in performance between the two handedness groups for any of the response measures. There was, however, a significant interaction between handedness and arm for the absolute and variable error measures: the right-handed group showed a smaller absolute and variable error with the left than the right arm; the left-handed group showed no difference in performance between the two arms for either measure. The left arm superiority among right-handed subjects was also found when individual subject data were analyzed. Although there were other significant interaction effects, neither gender nor delay interval significantly affected the between arm performance patterns.;The results are discussed in terms of hemispheric specialization of function. It is suggested that, for right-handed adults, the right hemisphere plays a more important role than the left hemisphere in mediating performance on a task requiring the replication of arm movements to various end-positions. For left-handed adults, there appears to be no difference in the role of the two hemispheres in mediating task performance. It is further suggested that the superiority of the right hemisphere for this task in right-handed adults could be indicative of right hemisphere specialization for either the spatial aspects of the task or for the kinesthetic processing requirement of the task. This latter alternative is consistent with, and therefore might explain, the left side/right hemisphere advantage found on most tasks presented through the somato-sensory modality.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
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Program
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Psychology
