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Rapid learning of visual categories without lateral prefrontal cortex in monkeys
https://repo.qst.go.jp/records/69429
https://repo.qst.go.jp/records/69429cbedeca2-dc05-48c0-bf00-bc37c4a4b94d
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2008-08-14 | |||||
| タイトル | ||||||
| タイトル | Rapid learning of visual categories without lateral prefrontal cortex in monkeys | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Minamimoto, Takafumi
× Minamimoto, Takafumi× et.al× 南本 敬史 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We tested whether lateral prefrontal cortex (LPFC) is essential for learning of visual categories without category-based executive control. We trained 4 rhesus monkeys in a task where a visually- triggered bar-release was required in every trial. A visual cue presented at the beginning of each trial indicated one of two rewarding conditions: a reward would be either immediately delivered or postponed (7s) after the correct bar release. When each member of a categorical cue set was associated with a rewarding condition (e.g. dog = immediate; cat = postponed), the monkeys discriminated the categories with different error rates (p<0.001, X2-test) even on the first day. After bilateral removal of LPFC, the monkeys still showed different error rates between categories with both learned (e.g. dogs/cats) and novel categories (e.g. cars/trucks). Furthermore, the monkeys generalized the association to trial-unique cue sets with different error rates. These results indicate that LPFC is not essential for learning of visual categories and generalization to novel stimuli. |
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| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Ｎｅｕｒｏｓｃｉｅｎｃｅ 2008 | |||||
| 発表年月日 | ||||||
| 日付 | 2008-07-11 | |||||
| 日付タイプ | Issued | |||||
