Layer-specificity in the effects of attention and working memory on activity in primary visual cortex - Archive ouverte HAL Access content directly
Journal Articles Nature Communications Year : 2017

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
Fichier principal
Vignette du fichier
vanKer.pdf (1.34 Mo) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

cea-02137953 , version 1 (23-05-2019)

Licence

Attribution - CC BY 4.0

Identifiers

Cite

Timo van Kerkoerle, Matthew Self, Pieter R. Roelfsema. Layer-specificity in the effects of attention and working memory on activity in primary visual cortex. Nature Communications, 2017, 8, pp.13804. ⟨10.1038/ncomms13804⟩. ⟨cea-02137953⟩
131 View
64 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More