Spatial attention reduces burstiness in macaque visual cortical area MST

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023752%3A_____%2F17%3A43915271" target="_blank" >RIV/00023752:_____/17:43915271 - isvavai.cz</a>

Result on the web

<a href="https://academic.oup.com/cercor/article/27/1/83/2557336" target="_blank" >https://academic.oup.com/cercor/article/27/1/83/2557336</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/cercor/bhw326" target="_blank" >10.1093/cercor/bhw326</a>

Result language

angličtina

Original language name

Spatial attention reduces burstiness in macaque visual cortical area MST

Original language description

Visual attention modulates the firing rate of neurons in many primate cortical areas. In V4, a cortical area in the ventral visual pathway, spatial attention has also been shown to reduce the tendency of neurons to fire closely separated spikes (burstiness). A recent model proposes that a single mechanism accounts for both the firing rate enhancement and the burstiness reduction in V4, but this has not been empirically tested. It is also unclear if the burstiness reduction by spatial attention is found in other visual areas and for other attentional types. We therefore recorded from single neurons in the medial superior temporal area (MST), a key motion-processing area along the dorsal visual pathway, of two rhesus monkeys while they performed a task engaging both spatial and feature-based attention. We show that in MST, spatial attention is associated with a clear reduction in burstiness that is independent of the concurrent enhancement of firing rate. In contrast, feature-based attention enhances firing rate but is not associated with a significant reduction in burstiness. These results establish burstiness reduction as a widespread effect of spatial attention. They also suggest that in contrast to the recently proposed model, the effects of spatial attention on burstiness and firing rate emerge from different mechanisms.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

30103 - Neurosciences (including psychophysiology)

Project

—

Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Cerebral Cortex

ISSN

1047-3211

e-ISSN

—

Volume of the periodical

27

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

83-91

UT code for WoS article

000397064800008

EID of the result in the Scopus database

2-s2.0-85040618280