Corollary discharge across the animal kingdom
By Trinity B. Crapse, Marc A. Sommer. Nature Reviews Neuroscience, 2008
726 citations recorded by the source corpus.
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.
Subfields: Cellular and Molecular Neuroscience, Cognitive Neuroscience
View Paper: https://www.semanticscholar.org/paper/324d2d44b23b8bbef59a8e92bab111978fabf535
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In Cellular and Molecular Neuroscience
In Cognitive Neuroscience
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Citations in the corpus
- Excitatory Cerebellar Nucleocortical Circuit Provides Internal Amplification during Associative Conditioning (2016, positive): “In general, feedback of corollary discharge can facilitate the prediction of sensory consequences of movements and improve learning and preparation of movements (Crapse and Sommer, 2008; Requarth and Sawtell, 2014).”
- Moving a Rubber Hand that Feels Like Your Own: A Dissociation of Ownership and Agency (2012, positive): “The comparison of the efferent copy with the actual feedback thus enables the agent to distinguish between internally and externally generated sensations (von Holst and Mittelstaedt, 1950; Bays et al., 2005; Crapse and Sommer, 2008).”
- Mental imagery of speech: linking motor and perceptual systems through internal simulation and estimation (2012, background): “Computationally, the independence of the monitoring function versus internal simulation and estimation is demonstrated by the nuanced differences between corollary discharge and the efference copy [see the review by Crapse and Sommer (2008)].”