Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41467-019-10506-4 |
Decisions are expedited through multiple neural adjustments spanning the sensorimotor hierarchy | |
Steinemann, Natalie A.1; 39;Connell, Redmond G.2 | |
2019-06-27 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2018 |
卷号 | 9 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Ireland |
英文摘要 | When decisions are made under speed pressure, "urgency" signals elevate neural activity toward action-triggering thresholds independent of the sensory evidence, thus incurring a cost to choice accuracy. While urgency signals have been observed in brain circuits involved in preparing actions, their influence at other levels of the sensorimotor pathway remains unknown. We used a novel contrast-comparison paradigm to simultaneously trace the dynamics of sensory evidence encoding, evidence accumulation, motor preparation, and muscle activation in humans. Results indicate speed pressure impacts multiple sensorimotor levels but in crucially distinct ways. Evidence-independent urgency was applied to cortical action-preparation signals and downstream muscle activation, but not directly to upstream levels. Instead, differential sensory evidence encoding was enhanced in a way that partially countered the negative impact of motor-level urgency on accuracy, and these opposing sensory-boost and motor-urgency effects had knock-on effects on the buildup and pre-response amplitude of a motor-independent representation of cumulative evidence. |
领域 | 资源环境 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000444014100002 |
WOS关键词 | PERCEPTUAL DECISION ; LOCUS-COERULEUS ; SPEED ; ACCURACY ; CORTEX ; MOTOR ; MODULATION ; MECHANISMS ; DYNAMICS ; MODEL |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204434 |
专题 | 资源环境科学 |
作者单位 | 1.CUNY City Coll, Dept Biomed Engn, New York, NY 10031 USA; 2.Columbia Univ, Zuckerman Mind Brain Behav Inst, 3227 Broadway, New York, NY 10027 USA; 3.Trinity Coll Dublin, Trinity Coll Inst Neurosci, Dublin 2, Ireland; 4.Trinity Coll Dublin, Sch Psychol, Dublin 2, Ireland; 5.Univ Coll Dublin, Sch Elect & Elect Engn, Dublin 4, Ireland |
推荐引用方式 GB/T 7714 | Steinemann, Natalie A.,39;Connell, Redmond G.. Decisions are expedited through multiple neural adjustments spanning the sensorimotor hierarchy[J]. NATURE COMMUNICATIONS,2019,9. |
APA | Steinemann, Natalie A.,&39;Connell, Redmond G..(2019).Decisions are expedited through multiple neural adjustments spanning the sensorimotor hierarchy.NATURE COMMUNICATIONS,9. |
MLA | Steinemann, Natalie A.,et al."Decisions are expedited through multiple neural adjustments spanning the sensorimotor hierarchy".NATURE COMMUNICATIONS 9(2019). |
条目包含的文件 | 条目无相关文件。 |
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