Abstract:
:In rodents, each main olfactory bulb contains two mirror-symmetric glomerular maps, a feature not found in the initial topographic maps of other sensory systems. Targeting tracer injections to identified glomeruli revealed that isofunctional odor columns-translaminar assemblies connected to a given glomerulus-were specifically and reciprocally interconnected through a mutually inhibitory circuit with exquisite topographic specificity. Thus, instead of containing two mirror-symmetric maps, we propose that the olfactory bulb contains a single integrated map in which isofunctional odor columns are connected through an intrabulbar link, analogous to the specific horizontal connections linking iso-orientation columns in primary visual cortex.
journal_name
Neuronjournal_title
Neuronauthors
Lodovichi C,Belluscio L,Katz LCdoi
10.1016/s0896-6273(03)00194-6subject
Has Abstractpub_date
2003-04-24 00:00:00pages
265-76issue
2eissn
0896-6273issn
1097-4199pii
S0896627303001946journal_volume
38pub_type
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