Feedback Connections to the Lateral Geniculate Nucleus and Cortical Response Properties

The cerebral cortex receives sensory input from the periphery by means of thalamic relay nuclei, but the flow of information goes both ways. Each cortical area sends a reciprocal projection back to the thalamus. In the visual system, the synaptic relations that govern the influence of thalamic affer...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1999-11, Vol.286 (5444), p.1552-1554
Main Authors: Murphy, Penelope C., Duckett, Simon G., Sillito, Adam M.
Format: Article
Language:English
Subjects:
Anatomy
Animals
Arborization
Axons
Axons - physiology
Axons - ultrastructure
Biological and medical sciences
Brain
Brain Mapping
Cats
Cellular biology
Eye and associated structures. Visual pathways and centers. Vision
Feedback
Fundamental and applied biological sciences. Psychology
Geniculate Bodies - cytology
Geniculate Bodies - physiology
Lysine - analogs & derivatives
Neuroscience
Optics, Physiological
Physiological optics
Physiological stimulation
Physiology
Preferences
Presynaptic Terminals - physiology
Presynaptic Terminals - ultrastructure
Stimuli
Synapses
Vertebrates: nervous system and sense organs
Vision research
Visual cortex
Visual Cortex - cytology
Visual Cortex - physiology
Visual Pathways
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Summary:The cerebral cortex receives sensory input from the periphery by means of thalamic relay nuclei, but the flow of information goes both ways. Each cortical area sends a reciprocal projection back to the thalamus. In the visual system, the synaptic relations that govern the influence of thalamic afferents on orientation selectivity in the cortex have been studied extensively. It now appears that the connectivity of the corticofugal feedback pathway is also fundamentally linked to the orientation preference of the cortical cells involved.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.286.5444.1552