| Budget Amount *help |
¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1986: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1985: ¥1,100,000 (Direct Cost: ¥1,100,000)
|
|---|
| 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.
|
