Value coding of the striatal neurons
纹状体神经元的值编码
基本信息
- 批准号:22700424
- 负责人:
- 金额:$ 2.58万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Young Scientists (B)
- 财政年份:2010
- 资助国家:日本
- 起止时间:2010 至 2011
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
We studied how caudate neurons code temporal discounted values in an instrumental task. We recorded the 99 phasically active neurons in the caudate nucleus. Sixty-four neurons showed significant cue-related activity. 15 neurons(23%) showed significant linear relation with discounted outcome value(DV). Within 120 trials recording periods, more than 15% of motivational value was discounted as reward accumulation(i. e., devaluation). However, the DV related activity was not sensitive to this reward devaluation. These results suggest that a subset of single caudate neuron represent the discounted outcome value computed from the predicted reward size and delay duration. The caudate discounted value coding is insensitive to devaluation. These value coding appears to be involved in value based decision making rather than motivational regulation of action.
我们研究了尾状核神经元如何在工具性任务中编码时间折扣值。我们记录了尾状核中99个相位活动神经元。64个神经元表现出明显的线索相关活动。15个神经元(23%)与折扣结果值(DV)呈显著线性关系。在120个试验记录期间,超过15%的动机价值被折扣为奖励积累(即。例如,贬值)。然而,DV相关活动对这种奖励贬值并不敏感。这些结果表明,单个尾状核神经元的子集表示从预测的奖励大小和延迟持续时间计算的折扣结果值。尾状核折现值编码对贬值不敏感。这些价值编码似乎参与了基于价值的决策,而不是行为的动机调节。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
動機づけ行動において遅延割引による報酬価値を表現する尾状核神経活動
尾状核神经活动通过动机行为的延迟贴现表达奖励价值
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:堀由紀子;バリー・リッチモンド;南本敬史
- 通讯作者:南本敬史
Neural coding of predicted and experienced outcome value with temporal discounting in the primate caudate nucleus.
灵长类尾状核中预测和经历的结果值的神经编码与时间贴现。
- DOI:
- 发表时间:2010
- 期刊:
- 影响因子:0
- 作者:Hori Y;Richmond BJ;Minamimoto T.
- 通讯作者:Minamimoto T.
Molecular imaging for motivational function and dysfunction
动机功能和功能障碍的分子成像
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:Takafumi Minamimoto;Yukiko Hori;Yuji Nagai;Arata Oh-Nishi;Tetsuya Suhar
- 通讯作者:Tetsuya Suhar
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MINAMIMOTO Takafumi其他文献
MINAMIMOTO Takafumi的其他文献
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