The effect of age on delay performance and associative learning tasks in pigeons.

IF 1.9 4区 心理学 Q3 BEHAVIORAL SCIENCES
Learning & Behavior Pub Date : 2023-09-01 Epub Date: 2023-01-09 DOI:10.3758/s13420-022-00565-x
Mary Flaim, Aaron P Blaisdell
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引用次数: 0

Abstract

Pigeons are commonly utilized in psychological research, and their cognitive abilities have been thoroughly investigated. Yet very little is known about how these abilities change with age. In contrast, age-related changes in humans, nonhuman primates, and rodents are well documented. Mammalian research consistently shows that older subjects show deficits in a variety of learning and memory processes, particularly those that rely on the prefrontal cortex and hippocampus. This research expands the avian aging literature by administering a memory task, the delayed match to sample procedure, and an associative learning task, a conditional or symbolic match to sample procedure, to nine young and 11 old pigeons. Previous research has indicated that these tasks rely on the avian equivalent to the mammalian prefrontal cortex, and we predicted that performance on both tasks would decline with age. In contrast to our predictions, only the associative learning task was sensitive to age-related decline. Performance on the memory task was maintained in older subjects. These results highlight further potential differences in avian versus mammalian aging, particularly when it comes to the prefrontal cortex.

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年龄对鸽子延迟表现和联想学习任务的影响。
鸽子在心理学研究中被广泛使用,它们的认知能力也得到了深入的研究。然而,人们对这些能力如何随着年龄的增长而变化知之甚少。相比之下,人类、非人类灵长类动物和啮齿类动物与年龄相关的变化有充分的记录。哺乳动物研究一致表明,年龄较大的受试者在各种学习和记忆过程中都表现出缺陷,尤其是那些依赖前额叶皮层和海马体的学习和记忆。这项研究通过对9只幼鸽和11只老鸽进行记忆任务、延迟匹配到样本程序和联想学习任务(条件或符号匹配到样本过程),扩展了鸟类衰老文献。先前的研究表明,这些任务依赖于相当于哺乳动物前额叶皮层的鸟类,我们预测这两项任务的表现都会随着年龄的增长而下降。与我们的预测相反,只有联想学习任务对年龄相关性下降敏感。老年受试者在记忆任务上的表现保持不变。这些结果进一步突出了鸟类和哺乳动物衰老的潜在差异,尤其是在前额叶皮层方面。
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来源期刊
Learning & Behavior
Learning & Behavior 医学-动物学
CiteScore
2.90
自引率
5.60%
发文量
50
审稿时长
>12 weeks
期刊介绍: Learning & Behavior publishes experimental and theoretical contributions and critical reviews concerning fundamental processes of learning and behavior in nonhuman and human animals. Topics covered include sensation, perception, conditioning, learning, attention, memory, motivation, emotion, development, social behavior, and comparative investigations.
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