EFFECTS OF VARYING TRIAL DISTRIBUTION, INTRAMAZE AND EXTRAMAZE CUES, AND AMOUNT OF REWARD ON PROACTIVE-INTERFERENCE IN THE RADIAL MAZE

被引:17
作者
COHEN, JS
REID, S
CHEW, K
机构
[1] Department of Psychology, University of Windsor, Windsor, N9B 3P4, OX
来源
ANIMAL LEARNING & BEHAVIOR | 1994年 / 22卷 / 02期
关键词
D O I
10.3758/BF03199913
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Rats are typically less accurate in their arm selections in the radial maze over successive trials in a session (Roberts & Dale, 1981). In the present study, rats' choice accuracy declined when such trials were separated by 2-min (massed) but not by 2-h (spaced) intertrial intervals. Changing intramaze visual/tactile arm stimuli (Experiments 1 and 3) or extramaze landmark stimuli (Experiment 4) between trials weakened the massed-trials effect, but changing the number of food pellets per arm, either alone or in conjunction with changes in intramaze cues (Experiments 2 and 3), did not. The rats also tended to avoid the spatial locations of their last four choices on a previous trial during their first four choices on a current trial, and more so with massed than with spaced trials. These findings indicate that intertrial proactive interference (PI) occurred only with massed trials and was weakened by changing intra- and extramaze cues between such trials.
引用
收藏
页码:134 / 142
页数:9
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