Effects of proactive interference on rats’ continuous nonmatching-to-sample performance
Effects of proactive interference on rats’ continuous nonmatching-to-sample performance
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主动干扰对大鼠连续不匹配样本表现的影响
DOI：
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发表时间：
1983
期刊：
影响因子：
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通讯作者：
M. Pontecorvo
中科院分区：
文献类型：
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作者：
M. Pontecorvo
大鼠进行了一种新的延迟匹配-样本任务-连续非匹配-样本任务。用一种刺激与用第二种刺激交替进行的数目可变的试验。刺激改变后的反应（非匹配试验）得到强化。对重复刺激的反应从未得到强化。大鼠可以通过记忆在前一次试验中出现的刺激来最大化强化。序列分析表明，来自先前冲突试验的干扰（主动干扰，PI）降低了反应准确性，但不影响记忆：非匹配试验后的准确性低于重复刺激后的准确性。此外，准确度随待记忆非匹配试验与先前干扰试验之间时间的变化而增加。然而，两次试验之间的时间和刺激物变化的距离都不影响准确度在保持间隔内下降的速度。
Rats performed a new delayed matching-to-sample task—the continuous nonmatching-to-sample task. A variable number of trials with one stimulus alternated with trials with a second stimulus. A response on the trial following a stimulus change (nonmatch trial) was reinforced. Responses to repeated stimuli were never reinforced. Rats could maximize reinforcement by remembering across the intertriai interval which stimulus was presented on the previous trial. Sequential analysis indicated that interference from previous conflicting trials (proactive interference, PI) reduced response accuracy but did not affect retention: Accuracy was lower on trials following a nonmatch trial than on trials following repeated stimuli. Furthermore, accuracy increased as a function of the time between the to-be-remembered nonmatch trial and the previous interfering trial. However, neither time between trials nor the distance from a stimulus change affected the rate of decline in accuracy over the retention interval.