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Microsaccade direction reflects the economic value of potential saccade goals and predicts saccade choice
文献类型：期刊论文
| 作者 | Yu, GC; Xu, BJ; Zhao, YC; Zhang, BZ; Yang, MP; Kan, JYY; Milstein, DM; Thevarajah, D; Dorris, MC |
| 刊名 | JOURNAL OF NEUROPHYSIOLOGY
 |
| 出版日期 | 2016 |
| 卷号 | 115期号:2页码:741-751 |
| 关键词 | PRIMATE SUPERIOR COLLICULUS FIXATIONAL EYE-MOVEMENTS COVERT VISUAL-ATTENTION SPATIAL ATTENTION NEURONAL-ACTIVITY MOTOR PREPARATION REACTION-TIMES RETINAL IMAGE MONKEY VISION |
| 通讯作者 | Dorris, MC (reprint author), Chinese Acad Sci, Shanghai Inst Biol Sci, Inst Neurosci, 320 Yue Yang Rd, Shanghai 200031, Peoples R China.,mike.dorris@ion.ac.cn |
| 英文摘要 | Microsaccades are smallamplitude (typically <1 degrees), ballistic eye movements that occur when attempting to fixate gaze. Initially thought to be generated randomly, it has recently been established that microsaccades are influenced by sensory stimuli, attentional processes, and certain cognitive states. Whether decision processes influence microsaccades, however, is unknown. Here, we adapted two classic economic tasks to examine whether microsaccades reflect evolving saccade decisions. Volitional saccade choices of monkey and human subjects provided a measure of the subjective value of targets. Importantly, analyses occurred during a period of complete darkness to minimize the known influence of sensory and attentional processes on microsaccades. As the time of saccadic choice approached, microsaccade direction became the following: 1) biased toward targets as a function of their subjective value and 2) predictive of upcoming, voluntary choice. Our results indicate that microsaccade direction is influenced by and is a reliable tell of evolving saccade decisions. Our results are consistent with dynamic decision processes within the midbrain superior colliculus; that is, microsaccade direction is influenced by the transition of activity toward caudal saccade regions associated with high saccade value and/or future saccade choice. |
| WOS标题词 | Neurosciences & Neurology ; Physiology |
| 学科主题 | Neurosciences; Physiology |
| 语种 | 英语 |
| WOS记录号 | WOS:000371154800013 |
| 源URL | [http://ir.sibs.ac.cn/handle/331001/4042]  |
| 专题 | 上海神经科学研究所_神经所(总) |
| 推荐引用方式 GB/T 7714 | Yu, GC,Xu, BJ,Zhao, YC,et al. Microsaccade direction reflects the economic value of potential saccade goals and predicts saccade choice[J]. JOURNAL OF NEUROPHYSIOLOGY,2016,115(2):741-751. |
| APA | Yu, GC.,Xu, BJ.,Zhao, YC.,Zhang, BZ.,Yang, MP.,...&Dorris, MC.(2016).Microsaccade direction reflects the economic value of potential saccade goals and predicts saccade choice.JOURNAL OF NEUROPHYSIOLOGY,115(2),741-751. |
| MLA | Yu, GC,et al."Microsaccade direction reflects the economic value of potential saccade goals and predicts saccade choice".JOURNAL OF NEUROPHYSIOLOGY 115.2(2016):741-751. |
入库方式： OAI收割
来源：上海神经科学研究所
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