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The deployment of visual attention during temporal integration: An electrophysiological investigation
Author(s) -
Akyürek Elkan G.,
Meijerink Steven K.
Publication year - 2012
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/j.1469-8986.2012.01380.x
Subject(s) - singleton , percept , psychology , stimulus (psychology) , perception , cognitive psychology , software deployment , communication , neuroscience , computer science , pregnancy , genetics , biology , operating system
The deployment of attention during temporal integration was investigated with event‐related potentials. Attentional selection of an integrated percept and an actual singleton were examined. Integration performance was related to modulations of the N 2pc, N 2, and P 3 components. Singleton localization performance was reflected in N 2pc and P 3 only. Of note, the singleton N 2pc developed and subsided earlier than the integration N 2pc. The singleton P 3 seemed to develop in a single deflection, while the integration P 3 showed two more distinct deflections. Physical stimulus differences could not explain these results. The N 2pc and N 2 modulations showed that attending to an integrated percept is not slower per se, but does differ from attending to a singleton. Integrated percepts furthermore have special correlates in late stages of perception (i.e., the P3). These differences are linked to the unique demand to combine and represent successive stimuli.