Neuromuscular consequences of reflexive covert ori...[Nat Neurosci. 2008]

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1: Nat Neurosci. 2008 Jan;11(1):13-5. Epub 2007 Dec 2. Links

Neuromuscular consequences of reflexive covert orienting.

Corneil BD, Munoz DP, Chapman BB, Admans T, Cushing SL.

Canadian Institutes of Health Research (CIHR) Group on Action and Perception, Department of Physiology & Pharmacology, London, Ontario, Canada. bcorneil@uwo.ca

Visual stimulus presentation activates the oculomotor network without requiring a gaze shift. Here, we demonstrate that primate neck muscles are recruited during such reflexive covert orienting in a manner that parallels activity recorded from the superior colliculus (SC). Our results indicate the presence of a brainstem circuit whereby reflexive covert orienting is prevented from shifting gaze, but recruits neck muscles, predicting that similarities between SC and neck muscle activity should extend to other cognitive processes that are known to influence SC activity.

PMID: 18059264 [PubMed - indexed for MEDLINE]

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Neuromuscular consequences of reflexive covert orienting.

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