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Synaptic connections of relay and local circuit neurons in the monkey's dorsal lateral geniculate nucleus.

Authors
Type
Published Article
Journal
Neuroscience Letters
0304-3940
Publisher
Elsevier
Publication Date
Volume
66
Issue
1
Pages
79–84
Identifiers
PMID: 3714116
Source
Medline
License
Unknown

Abstract

The synaptic inputs to a single neuron's dendritic tree can be analyzed using electronmicroscopic reconstructions after intracellular injections of horseradish peroxidase. In the monkey's dorsal lateral geniculate nucleus, the proximal dendrites of magnocellular and parvocellular relay cells received retinal synapses and inhibitory synapses, while the intermediate and distal dendrites received cortical synapses. A local circuit neuron had both similar synaptic inputs and similar physiology to parvocellular relay neurons, but additionally had presynaptic dendrites and no axon. These results provide a wiring diagram for the neuronal types in this nucleus.

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