Layer-specificity in the effects of attention and working memory on activity in primary visual cortex

Abstract : Neuronal activity in early visual cortex depends on attention shifts but the contribution to working memory has remained unclear. Here, we examine neuronal activity in the different layers of the primary visual cortex (V1) in an attention-demanding and a working memory task. A current-source density analysis reveales top-down inputs in the superficial layers and layer 5, and an increase in neuronal firing rates most pronounced in the superficial and deep layers and weaker in input layer 4. This increased activity is strongest in the attention task but it is also highly reliable during working memory delays. A visual mask erases the V1 memory activity, but it reappeares at a later point in time. These results provide new insights in the laminar circuits involved in the top-down modulation of activity in early visual cortex in the presence and absence of visual stimuli
Document type :
Journal articles
Complete list of metadatas

https://hal-cea.archives-ouvertes.fr/cea-02137953
Contributor : Bruno Savelli <>
Submitted on : Thursday, May 23, 2019 - 2:01:06 PM
Last modification on : Saturday, May 25, 2019 - 1:15:03 AM

File

vanKer.pdf
Files produced by the author(s)

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Collections

Citation

Timo Van Kerkoerle, Matthew Self, Pieter Roelfsema. Layer-specificity in the effects of attention and working memory on activity in primary visual cortex. Nature Communications, Nature Publishing Group, 2017, 8, pp.13804. ⟨http://www.nature.com/ naturecommunications⟩. ⟨10.1038/ncomms13804⟩. ⟨cea-02137953⟩

Share

Metrics

Record views

46

Files downloads

7