Korean Journal of Psychology: General
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- KOREAN
- P-ISSN1229-067X
- E-ISSN2734-1127
- KCI
ISSN : 1229-067X
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Vol.1 No.1
Abstract
The factors of grapheme, syllable-length, pronunciability and meaningfulness were varied for the lists of words in the Experiment I and the factor of morpheme levels was varied in the Experiment II, and accordingly, significant differences in the perceptual threshold among the lists were measured. It was discussed that structural complexity and reduudancy of meaning would be the factors which are operative in organization of a word.
Abstract
This experiment was planned to find if the hippocampus exerts any influence upon the emotional reactivity of male rats. Thirty-five rats in which the hippocampus was almost totally removed through a small hole with a diameter 3 mm made in the neocortex at the boundary between the parietal and occipital lobes (hippocampal group), twenty-five rats with similar neocortical damage alone (opera ted control group), and twenty-three normal control rats(normal control group) were subjected to the experiment. In an attempt to evaluate gross changes in emotional reactivity with hippocampal ablated rats, a four point rating scale technique by Brady and Nauta(1953) was employed. Ratings were made for all animals on the following six behavior components: (1) resistance to capture in home cage, (2) resistance to handling, (3) squealing and vocalization reaction to capture and handling, (4) urination and defecation reaction to capture and handling, (5) Aggressive reaction to presentation o£ pencils in close proximity to the animal snout. (6) Aggressive reaction to proding with a forcep on the animal back. Two independent judges rated in the relatively standard situation. Ratings for all animals were performed four occasions, i.e., on the 3,4,5 and 6 week days after surgery. The results for emotional reactivity are shown in table (1), It is apparent that there appears a rather marked change in the emotional reactivity of the hippocampal animals as compared with both of the two control groups throughout the four successive postoperative tests. The table 1 shows that there is a gradual increase in the magnitude of emotional reactivity for all three groups over the consecutive postoperative weeks.
Abstract
The present study was attempted to investigate immanent thinking in Korean children within the framework of Piaget's concepts. Piaget conceives of immanent thinking as punishment which is looked upon by the young child as resulting from nature or thing itself. Previous investigators have suggested that immanent thinking in children was affected by several factors such as cultural milieu, chronological age, mental age, sex difference and test situations. The present experiment was carried out for the purpose of inquiring these factors. The method adopted in this study was questionnaire technique composed of items of which items were borrowed from Piaget and the other 17 items were constructed through two preliminary experiments. 2187 children whose ages were 6 to 11 years in elementary schools were used as subjects. The responses obtained were divided into three categories of immanent, mixed and naturalristic responses. Several facts were observed as follows: (1) Immanent thinking was significantly decreased with age. This finding confirmed with the data of Piaget and others. (2) Our data failed to find out any relationship between immanent thinking and the levels of intelligence, in contrast with those of Piaget and Abel. (3) Differences of immanent thinking between the Korean children and the Hopi and Lebanese children might be attributable to the cultural milieu. (4) Imminent thinking in boys was significantly lowered than that of girls. It is in agreement with previous investigations. (5) When considered the high correlation between the two situations of test and interview, the test method is much likely to be placed instead of the method of interview.