1986 Fiscal Year Final Research Report Summary
A role of strain-characteristic spontaneous activities on escape/avoidance learning.
| Project/Area Number |
60510046
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Psychology
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| Research Institution | University of Tsukuba |
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Principal Investigator |
MAKINO Junshiro Institute of Psychology, 心理学系, 助教授 (60015443)
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| Project Period (FY) |
1985 – 1986
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| Keywords | inbred strains of mice / escape / avoidance learning |
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| Research Abstract |
It was suggested from our prior research on escape/avoidance learning in inbred strains of mice that the type of escape-response from shocks would play an important role on the acquirement of the avoidance activity.
[EXPERIMENT 1]
Two types of escape/avoidance response were available in the experiment. One is normal locomotor type responce; fleeing or entrance into the next box, another one is standing-up type responce; rearing and jumping-up. C57BL all fled into the next box, but in C3H about a half of the mice avoided shocks by rearing or jumping up, the rest avoided by fleeing into the next box.
[EXPERIMENT 2-1]
Relative occurrences of 4 types of response to 20 inescapable shocks were observed by the direct-observation method. As expected earlier, almost all C57BL mice responded by locomotor type of activities; running around, fleeing into the next room. And a half of C3H mice as well as C57BL took a locomotor type of activities, but the rest took a standing-up type of activities; jumping up, rearing.
[EXPERIMENT 2-2]
4 strains of mice had to take a standing-up type of response as the avoidance from shock in shuttle-box. AS expected, C3H could readily learn that standing-up type of avoidance than C57BL. This indicates that relative tendency of a response type to shock may be a determinant of establishment of avoidance learning.
The results above were suggesting that it will be important for a subject to take what type of response to shocks in early stage of avoidance learning situation.
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