Irrelevant relations and the active search for pattern structure in rat serial pattern learning.

Irrelevant relations and the active search for pattern structure in rat serial pattern learning.
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DOI:
10.1007/s10071-010-0370-5
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发表时间:
2011-05
期刊:
影响因子:
2.7
通讯作者:
Fountain, Stephen B.
Fountain, Stephen B.
中科院分区:
生物学2区
文献类型:
--
作者:
Kundey, Shannon M. A.;Fountain, Stephen B.

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研究了不相关关系在大学生模式学习和字母系列完成问题表现中的作用。他通过插入项目使模式结构变得模糊,从而在初始模式处理过程中可以进行多种解释,从而在序列中创建了不相关的关系。他报告说,不相关的关系放在模式的开头比放在结尾时对人类表现的影响更大。然而,一旦模式结构被诱导出来,不相关的关系就不会受到损害。在这里,我们研究了位于序列模式开头或结尾的不相关关系对大鼠序列模式学习的影响。老鼠根据相同的结构化序列模式按圆形排列的杠杆,123 234 345 456 567,其中数字表示正确杠杆的顺时针位置。此结构化串行模式与杠杆 2 上的重复响应交错,以在模式开头产生不相关关系(开始:122232 223242 324252 425262 526272),在杠杆 6 上交错以在模式结束时产生不相关关系(结束:162636 263646 364656 465666) 566676),或在杠杆 8 上以产生不相关关系(无不相关关系:182838 283848 384858 485868 586878。不相关关系显着阻碍学习,无论其在模式中的位置如何。然而,当不相关关系放置在模式开始与结束时,其对学习的阻碍显着更大。结果表明,与人类一样,老鼠从头到尾处理模式。
investigated the role of irrelevant relations in college students’ pattern learning and performance for letter series completion problems. He created irrelevant relations in sequences by inserting items to make pattern structure ambiguous such that it was open to multiple interpretations during initial pattern processing. He reported irrelevant relations impaired humans’ performance more when placed at the beginning of patterns than at the end. However, once pattern structure was induced, irrelevant relations were not impairing. Here, we examined the impact on rat serial pattern learning of irrelevant relations positioned at the beginning or end of a serial pattern. Rats pressed levers in a circular array according to the same structured serial pattern, 123 234 345 456 567, where digits indicated the clockwise position of the correct lever. This structured serial pattern was interleaved with repeating responses on lever 2 to produce irrelevant relations at the beginning of the pattern (Beginning: 122232 223242 324252 425262 526272), on lever 6 to produce irrelevant relations at the end of the pattern (End: 162636 263646 364656 465666 566676), or on lever 8 to produce no irrelevant relations (No Irrelevant Relations: 182838 283848 384858 485868 586878. Irrelevant relations significantly retarded learning regardless of their placement within the pattern. However, irrelevant relations retarded learning significantly more when placed at the pattern beginning versus end. The results indicate that rats, like humans, process patterns from beginning to end.
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