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Tag: Visual Attention

Visual awareness negativity is an early neural correlate of awareness: A preregistered study with two Gabor sizes

Published in: Cognitive, Affective, & Behavioral Neuroscience, Volume 18, Issue 1, 176-188 Abstract “Electrophysiological recordings are commonly used to study the neural correlates of consciousness in humans. Previous research is inconsistent as to whether awareness can be indexed with visual awareness negativity (VAN) at about 200 ms or if it occurs later. The present study was preregistered with two main aims: First, to provide independent evidence for or against the presence of VAN, and second, to study whether stimulus size may account for the inconsistent findings. Subjects were shown low-contrast Gaussian filtered gratings (Gabor patches) in the four visual quadrants. Gabor… Read More

Attending globally or locally: Incidental learning of optimal visual attention allocation

Published in: Journal of Experimental Psychology: Learning, Memory, and Cognition, Volume 44, Issue 3, 387-398 Abstract “Attention allocation determines the information that is encoded into memory. Can participants learn to optimally allocate attention based on what types of information are most likely to change? The current study examined whether participants could incidentally learn that changes to either high spatial frequency (HSF) or low spatial frequency (LSF) Gabor patches were more probable and to use this incidentally learned probability information to bias attention during encoding. Participants detected changes in orientation in arrays of 6 Gabor patches: 3 HSF and 3 LSF. For… Read More

Decision-making training reduces the attentional blink

Published in: Journal of Experimental Psychology: Human Perception and Performance, Volume 44, Issue 2, 195-205 Abstract “Practice or training on a particular task often yields gains for the trained task; however, the extent to which these benefits generalize to other stimuli/tasks is contentious. It has been suggested that behavioral decision-making/response selection training may enhance temporal visual attention, as measured using the attentional blink (AB) paradigm. Here, we show that AB can indeed be reduced through response selection training, which requires repeatedly performing a speeded decision-making task. Training gains garnered by this approach transferred to distinct AB measures, but not to unrelated… Read More

Concurrent deployment of visual attention and response selection bottleneck in a dual-task: Electrophysiological and behavioural evidence

Published in: The Quarterly Journal of Experimental Psychology, Volume 70, Issue 12, 2460-2477 Abstract “Visual attention and response selection are limited in capacity. Here, we investigated whether visual attention requires the same bottleneck mechanism as response selection in a dual-task of the psychological refractory period (PRP) paradigm. The dual-task consisted of an auditory two-choice discrimination Task 1 and a conjunction search Task 2, which were presented at variable temporal intervals (stimulus onset asynchrony, SOA). In conjunction search, visual attention is required to select items and to bind their features resulting in a serial search process around the items in the search… Read More