Abstract：
:Pyramidal cell structure varies systematically in occipitotemporal visual areas in monkeys. The dendritic trees of pyramidal cells, on average, become larger, more branched and more spinous with progression from the primary visual area (V1) to the second visual area (V2), the fourth (V4, or dorsolateral DL visual area) and inferotemporal (IT) cortex. Presently available data reveal that the extent of this increase in complexity parallels the expansion of occipitotemporal cortex. Here we extend the basis for comparison by studying pyramidal cell structure in occipitotemporal cortical areas in the chacma baboon. We found a systematic increase in the size of and branching complexity in the basal dendritic trees, as well as a progressive increase in the spine density along the basal dendrites of layer III pyramidal cells through V1, V2 and V4. These data suggest that the trend for more complex pyramidal cells with anterior progression through occipitotemporal visual areas is not a feature restricted to monkeys and prosimians, but is a widespread feature of occipitotemporal cortex in primates.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Elston GN,Benavides-Piccione R,Elston A,DeFelipe J,Manger Pdoi
10.1007/s00221-005-0057-3keywords:
subject
Has Abstractpub_date
2005-12-01 00:00:00pages
496-503issue
4eissn
0014-4819issn
1432-1106journal_volume
167pub_type
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