Sensory processing: Signal selection by cortical feedback
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چکیده
منابع مشابه
Sensory processing: Signal selection by cortical feedback
The great majority of studies in sensory physiology have concentrated on the neural pathways from the peripheral receptors that are tuned to different physical stimuli, through the brainstem and thalamus, to the cerebral cortex. As a result of the patterns of convergence and divergence that exist within these ascending pathways, a progressive analysis of sensory information takes place, which l...
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Although nearly half of the synaptic input to neurons in the dorsal thalamus comes from the cerebral cortex, the role of corticothalamic projections in sensory processing remains elusive. Although sensory afferents certainly establish the basic receptive field properties of thalamic neurons, increasing evidence indicates that feedback from the cortex plays a crucial role in shaping thalamic res...
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Closing the structure-function divide is more challenging in the brain than in any other organ (Lichtman and Denk, 2011). For example, in early visual cortex, feedback projections to V1 can be quantified (e.g., Budd, 1998) but the understanding of feedback function is comparatively rudimentary (Muckli and Petro, 2013). Focusing on the function of feedback, we discuss how textbook descriptions m...
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ژورنال
عنوان ژورنال: Current Biology
سال: 1997
ISSN: 0960-9822
DOI: 10.1016/s0960-9822(06)00043-1