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Title: Differential distribution of burst and single-spike responses in auditory thalamus
Authors: He, J
Hu, B
Issue Date: 2002
Publisher: American Physiological Society
Source: Journal of neurophysiology, 2002, v. 88, no. 4, p. 2152-2156 How to cite?
Journal: Journal of neurophysiology 
Abstract: The medial geniculate body (MGB) of the auditory thalamus comprises lemniscal and nonlemniscal neurons that project to the primary auditory cortex and limbic structures, respectively. Here we show that in anesthetized guinea pigs, MGB responses to a noise-burst stimulus exhibit distinct and synaptic pathway-specific firing patterns. The majority of nonlemniscal MGB cells exhibited bursting responses, whereas lemniscal neurons discharged mainly single or spike doublets. The burst firing is delayed in nonlemniscal neurons and exhibited several features that are characteristics of those mediated by low-threshold Ca2+ spikes. Such a synaptic pathway-specific allocation of bursting and single-spike firing patterns is consistent with the notion of parallel processing of auditory information in thalamocortical system.
ISSN: 0022-3077
EISSN: 1522-1598
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