CUED Publications database

Rapid Automatic Motor Encoding of Competing Reach Options.

Gallivan, JP and Stewart, BM and Baugh, LA and Wolpert, DM and Flanagan, JR (2017) Rapid Automatic Motor Encoding of Competing Reach Options. Cell Rep, 18. pp. 1619-1626.

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Abstract

Mounting neural evidence suggests that, in situations in which there are multiple potential targets for action, the brain prepares, in parallel, competing movements associated with these targets, prior to implementing one of them. Central to this interpretation is the idea that competing viewed targets, prior to selection, are rapidly and automatically transformed into corresponding motor representations. Here, by applying target-specific, gradual visuomotor rotations and dissociating, unbeknownst to participants, the visual direction of potential targets from the direction of the movements required to reach the same targets, we provide direct evidence for this provocative idea. Our results offer strong empirical support for theories suggesting that competing action options are automatically represented in terms of the movements required to attain them. The rapid motor encoding of potential targets may support the fast optimization of motor costs under conditions of target uncertainty and allow the motor system to inform decisions about target selection.

Item Type: Article
Uncontrolled Keywords: action decision making motor planning parallel encoding reaching sensorimotor visuomotor adaptation
Subjects: UNSPECIFIED
Divisions: Div F > Computational and Biological Learning
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:11
Last Modified: 17 Aug 2017 01:25
DOI: