2001年
Perseverative errors in object discrimination learning by aged Japanese monkeys (Macaca fuscata)
Journal of Experimental Psychology: Animal Behavior Processes
- 巻
- 27
- 号
- 4
- 開始ページ
- 345
- 終了ページ
- 353
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1037/0097-7403.27.4.345
- 出版者・発行元
- American Psychological Association Inc.
To examine the nature of age-dependent cognitive decline, performance in terms of concurrent object discriminations was assessed in aged and nonaged Japanese monkeys (Macaca fuscata). Aged monkeys required more sessions and committed more errors than nonaged ones in the discriminations, even in simple object discriminations. Analyses of errors suggest that aged monkeys repeated the same errors and committed more errors when they chose a negative object at the 1st trial. A hypothesis analysis of behavior suggests that their incorrect choices were mainly due to object preference. Therefore, the impairment was probably caused by a failure to inhibit inappropriate responses. Together with previous neuropsychological findings, deficits of aged monkeys in the performance of object discriminations can be explained by dysfunction of the frontal cortex. Copyright 2001 by the American Psychological Association, Inc.
- リンク情報
- ID情報
-
- DOI : 10.1037/0097-7403.27.4.345
- ISSN : 0097-7403
- PubMed ID : 11676085
- SCOPUS ID : 0035491018