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Reflections on agranular architecture: predictive coding in the motor cortex
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DOI：10.1016/j.tins.2013.09.004.png)
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Abstract
En 中文
The agranular architecture of motor cortex lacks a functional interpretation. Here, we consider a 'predictive coding' account of this unique feature based on asymmetries in hierarchical cortical connections. In sensory cortex, layer 4 (the granular layer) is the target of ascending pathways. We theorise that the operation of predictive coding in the motor system (a process termed 'active inference') provides a principled rationale for the apparent recession of the ascending pathway in motor cortex. The extension of this theory to interlaminar circuitry also accounts for a sub-class of 'mirror neuron' in motor cortex whose activity is suppressed when observing an action explaining how predictive coding can gate hierarchical processing to switch between perception and action.
Keywords:
PRIMARY VISUAL-CORTEX
STRIATE CORTEX
MACAQUE MONKEY
SUPERIOR COLLICULUS
LAYER 6
INHIBITORY INTERNEURONS
DENDRITIC INTEGRATION
SOMATOSENSORY CORTEX
FEEDBACK CONNECTIONS
CORTICAL CONNECTIONS
Journal
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15.1
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5.3K
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