Motion processing impaired by transient spatial attention: Potential implications for the magnocellular pathway
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Motion processing impaired by transient spatial attention : Potential implications for the magnocellular pathway. / Pavan, Andrea; Koc Yilmaz, Seyma; Kafaligonul, Husili; Battaglini, Luca; Blurton, Steven.
I: Vision Research, Bind 199, 108080, 10.2022.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Motion processing impaired by transient spatial attention
T2 - Potential implications for the magnocellular pathway
AU - Pavan, Andrea
AU - Koc Yilmaz, Seyma
AU - Kafaligonul, Husili
AU - Battaglini, Luca
AU - Blurton, Steven
PY - 2022/10
Y1 - 2022/10
N2 - Spatial cues presented prior to the presentation of a static stimulus usually improve its perception. However, previous research has also shown that transient exogenous cues to direct spatial attention to the location of a forthcoming stimulus can lead to reduced performance. In the present study, we investigated the effects of transient exogenous cues on the perception of briefly presented drifting Gabor patches. The spatial and temporal frequencies of the drifting Gabors were chosen to mainly engage the magnocellular pathway. We found better performance in the motion direction discrimination task when neutral cues were presented before the drifting target compared to a valid spatial cue. The behavioral results support the hypothesis that transient attention prolongs the internal response to the attended stimulus, thus reducing the temporal segregation of visual events. These results were complemented by applying a recently developed model for perceptual decisions to rule out a speed-accuracy trade-off and to further assess cueing effects on visual performance. In a model-based assessment, we found that valid cues initially enhanced processing but overall resulted in less efficient processing compared to neutral cues, possibly caused by reduced temporal segregation of visual events.
AB - Spatial cues presented prior to the presentation of a static stimulus usually improve its perception. However, previous research has also shown that transient exogenous cues to direct spatial attention to the location of a forthcoming stimulus can lead to reduced performance. In the present study, we investigated the effects of transient exogenous cues on the perception of briefly presented drifting Gabor patches. The spatial and temporal frequencies of the drifting Gabors were chosen to mainly engage the magnocellular pathway. We found better performance in the motion direction discrimination task when neutral cues were presented before the drifting target compared to a valid spatial cue. The behavioral results support the hypothesis that transient attention prolongs the internal response to the attended stimulus, thus reducing the temporal segregation of visual events. These results were complemented by applying a recently developed model for perceptual decisions to rule out a speed-accuracy trade-off and to further assess cueing effects on visual performance. In a model-based assessment, we found that valid cues initially enhanced processing but overall resulted in less efficient processing compared to neutral cues, possibly caused by reduced temporal segregation of visual events.
KW - Faculty of Social Sciences
KW - Visuospatial attention
KW - Exogeneous cues
KW - Temporal segregation
KW - Computational modelling
UR - https://osf.io/esn94/
U2 - 10.1016/j.visres.2022.108080
DO - 10.1016/j.visres.2022.108080
M3 - Journal article
C2 - 35749832
VL - 199
JO - Vision Research
JF - Vision Research
SN - 0042-6989
M1 - 108080
ER -
ID: 318818069