| Research Abstract |
The present research was composed of two parts. In the first study, intercorelations of temperaments and cognitive styles between 327 female and 247 male university students, and their parents were measured. The intercorelations between students and their parents that were not observed between mothers and fathers were taken into account. Significant correlations between daughters and mothers in Imagery and Imagination scale, and those between sons and fathers in Mobility and Inhibition scales were found to be unique to child-parent relationships. In the previous study by Sakano, it was found that these scales correlate strongly to extraversion and neurotisism scales of Maudsley Personality Inventory that are known to be rather hereditarily determined. Therefore, the results strongly suggest hereditary factors in these three scales in the present study.
In the second study, the manner of clasping hands that is considered to be a genotype of cognitive style, together with temperaments and cognitive styles was measured by 2500 male adults of 27-56 years old. It has been shown from many authors including Sakano that the manner of clasping hands is hereditary. Together with the hereditary nature of hand clasping, it was found that right hand uppermost males increased in fourties, thus suggesting decreasing functions of the right hemisphers.
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