A neuronal basis of iconic memory in macaque primary visual cortex.

Autor:	Teeuwen RRM; Department of Vision & Cognition, Netherlands Institute for Neuroscience, Meibergdreef 47, 1105 Amsterdam, the Netherlands., Wacongne C; Department of Vision & Cognition, Netherlands Institute for Neuroscience, Meibergdreef 47, 1105 Amsterdam, the Netherlands., Schnabel UH; Department of Vision & Cognition, Netherlands Institute for Neuroscience, Meibergdreef 47, 1105 Amsterdam, the Netherlands., Self MW; Department of Vision & Cognition, Netherlands Institute for Neuroscience, Meibergdreef 47, 1105 Amsterdam, the Netherlands., Roelfsema PR; Department of Vision & Cognition, Netherlands Institute for Neuroscience, Meibergdreef 47, 1105 Amsterdam, the Netherlands; Psychiatry Department, Academic Medical Center, University of Amsterdam, Nieuwe Achtergracht 129-B, 1018 Amsterdam, the Netherlands; Department of Integrative Neurophysiology, Center for Neurogenomics and Cognitive Research, VU University, De Boelelaan 1085, 1081 Amsterdam, the Netherlands. Electronic address: p.roelfsema@nin.knaw.nl.
Jazyk:	angličtina
Zdroj:	Current biology : CB [Curr Biol] 2021 Dec 20; Vol. 31 (24), pp. 5401-5414.e4. Date of Electronic Publication: 2021 Oct 14.
DOI:	10.1016/j.cub.2021.09.052
Abstrakt:	After a briefly presented visual stimulus disappears, observers retain a detailed representation of this stimulus for a short period of time. This sensory storage is called iconic memory. We measured iconic memory in the perception of monkeys and its neuronal correlates in the primary visual cortex (area V1). We determined how many milliseconds extra viewing time iconic memory is worth and how it decays by varying the duration of a brief stimulus and the timing of a mask. The V1 activity that persists after the disappearance of a stimulus predicted accuracy, with a time course resembling the worth and decay of iconic memory. Finally, we examined how iconic memory interacts with attention. A cue presented after the stimulus disappears boosts attentional influences pertaining to a relevant part of the stimulus but only if it appears before iconic memory decayed. Our results relate iconic memory to neuronal activity in early visual cortex. Competing Interests: Declaration of interests P.R.R. is founder and shareholder of Phosphoenix, a company that aims to develop a visual brain prosthesis for blind people. (Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.)
Databáze:	MEDLINE
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