Strong single-fiber sensory inputs to olfactory cortex: implications for olfactory coding.

Abstract:

:Olfactory information is first encoded in a combinatorial fashion by olfactory bulb glomeruli, which individually represent distinct chemical features of odors. This information is then transmitted to piriform (olfactory) cortex, via axons of olfactory bulb mitral and tufted (M/T) cells, where it is presumed to form the odor percept. However, mechanisms governing the integration of sensory information in mammalian olfactory cortex are unclear. Here we show that single M/T cells can make powerful connections with cortical pyramidal cells, and coincident input from few M/T cells is sufficient to elicit spike output. These findings suggest that odor coding is broad and distributed in olfactory cortex.

journal_name

Neuron

journal_title

Neuron

authors

Franks KM,Isaacson JS

doi

10.1016/j.neuron.2005.12.026

subject

Has Abstract

pub_date

2006-02-02 00:00:00

pages

357-63

issue

3

eissn

0896-6273

issn

1097-4199

pii

S0896-6273(06)00009-2

journal_volume

49

pub_type

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