Abstract:
:Neural oscillations are ubiquitous in olfactory systems of mammals, insects and molluscs. Neurophysiological and computational investigations point to common mechanisms for gamma or odor associated oscillations across phyla (40-100Hz in mammals, 20-30Hz in insects, 0.5-1.5Hz in molluscs), engaging the reciprocal dendrodendritic synapse between excitatory principle neurons and inhibitory interneurons in the olfactory bulb (OB), antennal lobe (AL), or procerebrum (PrC). Recent studies suggest important mechanisms that may modulate gamma oscillations, including neuromodulators and centrifugal input to the OB and AL. Beta (20Hz) and theta (2-12Hz) oscillations coordinate activity within and across brain regions. Olfactory beta oscillations are associated with odor learning and depend on centrifugal OB input, while theta oscillations are strongly associated with respiration.
journal_name
Curr Opin Neurobioljournal_title
Current opinion in neurobiologyauthors
Kay LMdoi
10.1016/j.conb.2014.10.004subject
Has Abstractpub_date
2015-04-01 00:00:00pages
141-7eissn
0959-4388issn
1873-6882pii
S0959-4388(14)00204-9journal_volume
31pub_type
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