ラットの時間弁別学習における手がかり刺激の利用

Use of cue stimulus during temporal discrimination in rats.

木下 和紀

坂田 省吾

広島大学総合科学部紀要. IV, 理系編

Memoirs of the Faculty of Integrated Arts and Sciences, Hiroshima University. IV, Science reports

A series of experiments examined the observing responses as the usage of a cue stiumlus during temporal discrimination learning. The observing response was defined as pressing a lever which presented a cue stimulus but not contingent reinforcers. Five food deprived rats were examined using differential reinforcement of long latencies (DRLL) schedule with a two levers operant chamber. In the first procedure which was presented flicker stimuli automatically, acquired reinforcement effectively. The results showed that flicker stimulus became cue stimulus. The second procedure required a observing response to present a cue stimulus. However, boserving response appeared little numbers. Next, we used more difficult procedures than the secong one. These schedules have long DRLL value. In such schedules, the number of observing responses were more than that in easy schedule.

cue

observing response

rats

temporal discrimination

動物学 [ 480 ]

日本語

広島大学総合科学部

[作成日] 2006-03-21

[ISSN] 1340-8364

[NCID] AN10435936