Emergence of transformation-tolerant representations of visual objects in rat lateral extrastriate cortex.

Abstract:

:Rodents are emerging as increasingly popular models of visual functions. Yet, evidence that rodent visual cortex is capable of advanced visual processing, such as object recognition, is limited. Here we investigate how neurons located along the progression of extrastriate areas that, in the rat brain, run laterally to primary visual cortex, encode object information. We found a progressive functional specialization of neural responses along these areas, with: (1) a sharp reduction of the amount of low-level, energy-related visual information encoded by neuronal firing; and (2) a substantial increase in the ability of both single neurons and neuronal populations to support discrimination of visual objects under identity-preserving transformations (e.g., position and size changes). These findings strongly argue for the existence of a rat object-processing pathway, and point to the rodents as promising models to dissect the neuronal circuitry underlying transformation-tolerant recognition of visual objects.

journal_name

Elife

journal_title

eLife

authors

Tafazoli S,Safaai H,De Franceschi G,Rosselli FB,Vanzella W,Riggi M,Buffolo F,Panzeri S,Zoccolan D

doi

10.7554/eLife.22794

subject

Has Abstract

pub_date

2017-04-11 00:00:00

issn

2050-084X

journal_volume

6

pub_type

杂志文章

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