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Corollary discharge across the animal kingdom.

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Date
2008-08
Authors
Crapse, Trinity B
Sommer, Marc A
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Abstract
Our movements can hinder our ability to sense the world. Movements can induce sensory input (for example, when you hit something) that is indistinguishable from the input that is caused by external agents (for example, when something hits you). It is critical for nervous systems to be able to differentiate between these two scenarios. A ubiquitous strategy is to route copies of movement commands to sensory structures. These signals, which are referred to as corollary discharge (CD), influence sensory processing in myriad ways. Here we review the CD circuits that have been uncovered by neurophysiological studies and suggest a functional taxonomic classification of CD across the animal kingdom. This broad understanding of CD circuits lays the groundwork for more challenging studies that combine neurophysiology and psychophysics to probe the role of CD in perception.
Type
Journal article
Subject
Action Potentials
Animals
Central Nervous System
Motor Neurons
Movement
Neural Pathways
Neurons, Afferent
Perception
Peripheral Nervous System
Sensation
Synaptic Transmission
Permalink
https://hdl.handle.net/10161/11737
Published Version (Please cite this version)
10.1038/nrn2457
Publication Info
Crapse, Trinity B; & Sommer, Marc A (2008). Corollary discharge across the animal kingdom. Nat Rev Neurosci, 9(8). pp. 587-600. 10.1038/nrn2457. Retrieved from https://hdl.handle.net/10161/11737.
This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
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Scholars@Duke

Sommer

Marc A. Sommer

Associate Professor of Biomedical Engineering
We study circuits for cognition. Using a combination of neurophysiology and biomedical engineering, we focus on the interaction between brain areas during visual perception, decision-making, and motor planning. Specific projects include the role of frontal cortex in metacognition, the role of cerebellar-frontal circuits in action timing, the neural basis of "good enough" decision-making (satisficing), and the neural mechanisms of transcranial magnetic stimulation (TMS).
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