TY - JOUR
T1 - To look or not to look
T2 - dissociating presaccadic and covert spatial attention
AU - Li, Hsin Hung
AU - Hanning, Nina M.
AU - Carrasco, Marisa
N1 - Funding Information:
This research was supported by National Institutes of Health National Eye Institute grant R01 EY019693 to M.C. and a Feodor Lynen Research Fellowship from the Alexander von Humboldt Foundation to N.M.H. We thank Antoine Barbot, Antonio Fernández, Marc Himmelberg, Michael Jigo, and other members of the laboratory of M.C., as well as Luca Wollenberg and Heiner Deubel, for useful comments.
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/8
Y1 - 2021/8
N2 - Attention is a central neural process that enables selective and efficient processing of visual information. Individuals can attend to specific visual information either overtly, by making an eye movement to an object of interest, or covertly, without moving their eyes. We review behavioral, neuropsychological, neurophysiological, and computational evidence of presaccadic attentional modulations that occur while preparing saccadic eye movements, and highlight their differences from those of covert spatial endogenous (voluntary) and exogenous (involuntary) attention. We discuss recent studies and experimental procedures on how these different types of attention impact visual performance, alter appearance, differentially modulate the featural representation of basic visual dimensions (orientation and spatial frequency), engage different neural computations, and recruit partially distinct neural substrates. We conclude that presaccadic attention and covert attention are dissociable.
AB - Attention is a central neural process that enables selective and efficient processing of visual information. Individuals can attend to specific visual information either overtly, by making an eye movement to an object of interest, or covertly, without moving their eyes. We review behavioral, neuropsychological, neurophysiological, and computational evidence of presaccadic attentional modulations that occur while preparing saccadic eye movements, and highlight their differences from those of covert spatial endogenous (voluntary) and exogenous (involuntary) attention. We discuss recent studies and experimental procedures on how these different types of attention impact visual performance, alter appearance, differentially modulate the featural representation of basic visual dimensions (orientation and spatial frequency), engage different neural computations, and recruit partially distinct neural substrates. We conclude that presaccadic attention and covert attention are dissociable.
KW - contrast
KW - endogenous attention
KW - exogenous attention
KW - eye movements
KW - featural representation
KW - orientation
KW - spatial frequency
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U2 - 10.1016/j.tins.2021.05.002
DO - 10.1016/j.tins.2021.05.002
M3 - Review article
C2 - 34099240
AN - SCOPUS:85108209587
SN - 0166-2236
VL - 44
SP - 669
EP - 686
JO - Trends in Neurosciences
JF - Trends in Neurosciences
IS - 8
ER -