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Inhibition of return, gap effect and saccadic reaction time to a visual target BJMBR
Guimarães-Silva,S.; Gawryszewski,L.G.; Portugal,T.S.; Klausner-de-Oliveira,L..
Simple manual reaction time (MRT) to a visual target (S2) is shortened when a non-informative cue (S1) is flashed at the S2 location shortly before the onset of S2 (early facilitation). Afterwards, MRT to S2 appearing at the S1 location is lengthened (inhibition of return - IOR). Similar results have been obtained for saccadic reaction time (SRT). Moreover, when there is a temporal gap between offset of the fixation point (FP) and onset of a target (gap paradigm), SRT is shorter than SRT in an overlap paradigm (FP remains on). In the present study, we determined SRT to S2 (10º) after presenting S1 at the same eccentricity (10º) or at a parafoveal position (2º) in the same or in the opposite hemifield. In addition, we employed both gap and overlap...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Visual attention; Saccadic reaction time; Inhibition of return; Covert orienting; Gap effect.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000400010
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