Similarity in Neuronal Firing Regimes across Mammalian Species

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The architectonic subdivisions of the brain are believed to be functional modules, each processing parts of global functions. Previously, we showed that neurons in different regions operate in different firing regimes in monkeys. It is possible that firing regimes reflect differences in underlying information processing, and consequently the firing regimes in homologous regions across animal species might be similar. We analyzed neuronal spike trains recorded from behaving mice, rats, cats, and monkeys. The firing regularity differed systematically, with differences across regions in one species being greater than the differences in similar areas across species. Neuronal firing was consistently most regular in motor areas, nearly random in visual and prefrontal/medial prefrontal cortical areas, and bursting in the hippocampus in all animals examined. This suggests that firing regularity (or irregularity) plays a key role in neural computation in each functional subdivision, depending on the types of information being carried.
Publisher
SOC NEUROSCIENCE
Issue Date
2016-05
Language
English
Article Type
Article
Keywords

MONKEY CEREBRAL-CORTEX; MACAQUE MONKEY; VISUAL-CORTEX; NEOCORTICAL NEURONS; PYRAMIDAL NEURONS; CORTICAL ACTIVITY; DIFFERENT AREAS; PATTERNS; SPIKING; CONNECTIVITY

Citation

JOURNAL OF NEUROSCIENCE, v.36, no.21, pp.5736 - 5747

ISSN
0270-6474
DOI
10.1523/JNEUROSCI.0230-16.2016
URI
http://hdl.handle.net/10203/212150
Appears in Collection
BS-Journal Papers(저널논문)
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