It has been suggested that handedness is a crude but readily testable aspect of cerebral dominance, i.e. a reflection of the partition of functions between the two hemispheres of the brain, and unilateral cerebral dysfunction may exist in patients with certain forms of psychiatric disorder. The authors surveyed the patterns of the hand preference with the samples of 1,576 healthy Korean students in the primary, middle and high school and university in Kwang-Ju city. This is preliminary study for evaluation of handedness in psychiatric patients. In this study, Annett’s(1970) and Oldfield’s (1971) hahd preference questionnaires were used as the instrument for assessing handedness, and categorization of handedness was performed using the criteria established by Lishman and McMeekan. (1976) The results were as follows; 1. It was revealed that 77.9% of all subjects were regarded as strong right handers, 22.2% as mixed handers and 0.2% as strong left handers. 2. There was no significant difference between each group. 3. The ratios of male to female for each hand edness were as follows; the ratio in strong right hander was 71.3% vs. 83.9%, that in mixed hander was 28.5% vs. 16.096, and that in strong left hander was 0.296 vs. 0.1%, 4. Male students in primary, middle and high school and university showed high preference of left hand in items No. 9 (sweeping the floor with straight broom), No. 21 (putting on a shoe) and No. 24 (placing an arm in to a coat sleeve.) 5. All subjects showed high preference of both hands in item No. 19 (carrying a book bag).
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