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Direct linkHernandez, Mireia; Costa, Albert; Humphreys, Glyn W. – Cognition, 2012
We ask whether bilingualism aids cognitive control over the inadvertent guidance of visual attention from working memory and from bottom-up cueing. We compare highly-proficient Catalan-Spanish bilinguals with Spanish monolinguals in three visual search conditions. In the working memory (WM) condition, attention was driven in a top-down fashion by…
Descriptors: Priming, Attention, Short Term Memory, Cognitive Processes
Andrews, Lucy S.; Watson, Derrick G.; Humphreys, Glyn W.; Braithwaite, Jason J. – Journal of Experimental Psychology: Human Perception and Performance, 2011
Evidence for inhibitory processes in visual search comes from studies using preview conditions, where responses to new targets are delayed if they carry a featural attribute belonging to the old distractor items that are currently being ignored--the negative carry-over effect (Braithwaite, Humphreys, & Hodsoll, 2003). We examined whether…
Descriptors: Visual Perception, Inhibition, Visual Stimuli, Motion
Soto, David; Wriglesworth, Alice; Bahrami-Balani, Alex; Humphreys, Glyn W. – Journal of Experimental Psychology: Learning, Memory, and Cognition, 2010
We show that perceptual sensitivity to visual stimuli can be modulated by matches between the contents of working memory (WM) and stimuli in the visual field. Observers were presented with an object cue (to hold in WM or to merely attend) and subsequently had to identify a brief target presented within a colored shape. The cue could be…
Descriptors: Visual Stimuli, Cues, Identification, Visual Perception
Soto, David; Humphreys, Glyn W. – Cognition, 2009
We present data indicating that visual awareness for a basic perceptual feature (colour) can be influenced by the relation between the feature and the semantic properties of the stimulus. We examined semantic interference from the meaning of a colour word ("RED") on simple colour (ink related) detection responses in a patient with simultagnosia…
Descriptors: Semantics, Semiotics, Visual Perception, Visual Stimuli
Ballaz, Cecile; Boutsen, Luc; Peyrin, Carole; Humphreys, Glyn W.; Marendaz, Christian – Journal of Experimental Psychology: Human Perception and Performance, 2005
The authors studied the influence of canonical orientation on visual search for object orientation. Displays consisted of pictures of animals whose axis of elongation was either vertical or tilted in their canonical orientation. Target orientation could be either congruent or incongruent with the object's canonical orientation. In Experiment 1,…
Descriptors: Psychological Studies, Visual Perception, Visual Stimuli, Cognitive Processes
Olivers, Christian N. L.; Humphreys, Glyn W. – Cognitive Psychology, 2003
This paper is concerned with how we prioritize the selection of new objects in visual scenes. We present four experiments investigating the effects of distractor previews on visual search through new objects. Participants viewed a set of to-be-ignored nontargets, with the task being to search for a target in a second set, added to the first after…
Descriptors: Visual Perception, Task Analysis, Color, Attention
