| Neuronal activity in dorsomedial frontal cortex and prefrontal cortex reflecting irrelevant stimulus dimensions | |
| Chen NH1; White IM2; Wise SP*3; spw@codon.nih.gov | |
| 2001 | |
| 发表期刊 | EXPERIMENTAL BRAIN RESEARCH
 |
| ISSN | 0014-4819 |
| 卷号 | 139期号:1页码:116-119 |
| 合作性质 | 其它 |
| 摘要 | Previous studies of the dorsomedial frontal cortex (DMF) and the prefrontal cortex (PF) have shown that, when monkeys respond to nonspatial features of a discriminative stimulus (e.g., color) and the stimulus appears at a place unrelated to the movement target, neurons nevertheless encode stimulus location. This observation could support the idea that these neurons always encode stimulus location, regardless of its relevance to an instrumentally conditioned behavior. Past studies, however, leave open the possibility that activity observed during one operant task might reflect the contingencies of a different task, performed at different times. To test these alternatives, we examined the activity of DMF and PF neurons in two rhesus monkeys conditioned to perform an operant eye-movement task in which only the color and shape of visual stimuli served as salient discriminative features. Each of eight stimuli was associated with a response to a different eye-movement target. The location of these stimuli varied from trial to trial but was of no behavioral relevance, and the monkeys did not perform any operant task in which stimulus location controlled behavior. A substantial minority of neurons in both DMF and PF nevertheless encoded stimulus location, which indicates that this property does not depend on its relevance in an instrumentally conditioned behavior. |
| 关键词 | Visually Guided Movement Supplementary Eye Field Frontal Cortex Medial Eye Field Monkey |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.kiz.ac.cn/handle/152453/5511 |
| 专题 | 科研部门_神经系统编码（胡新天） |
| 通讯作者 | spw@codon.nih.gov |
| 作者单位 | 1.KunMing Institute of Zoology, 32 JiaoChang DongLu, KunMing, YunNan 650223, P.R. China 2.Behavioral Neurobiology, Institute of Toxicology, Swiss Federal Institute of Technology Zurich, 8603 Schwerzenbach, Switzerland 3.Section on Neurophysiology, Laboratory of Systems Neuroscience, National Institute of Mental Health, National Institute of Health, 49 Convent Drive, MSC 4401, Building 49/Room B1EE17, Bethesda, MD 20892-4401, USA |
| 推荐引用方式 GB/T 7714 | Chen NH,White IM,Wise SP*,et al. Neuronal activity in dorsomedial frontal cortex and prefrontal cortex reflecting irrelevant stimulus dimensions[J]. EXPERIMENTAL BRAIN RESEARCH,2001,139(1):116-119. |
| APA | Chen NH,White IM,Wise SP*,&spw@codon.nih.gov.(2001).Neuronal activity in dorsomedial frontal cortex and prefrontal cortex reflecting irrelevant stimulus dimensions.EXPERIMENTAL BRAIN RESEARCH,139(1),116-119. |
| MLA | Chen NH,et al."Neuronal activity in dorsomedial frontal cortex and prefrontal cortex reflecting irrelevant stimulus dimensions".EXPERIMENTAL BRAIN RESEARCH 139.1(2001):116-119. |
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| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| 2001139116.pdf（41KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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