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    A dissociation between selective attention and conscious awareness in the representation of temporal order information

    Eimer, Martin and Grubert, Anna (2015) A dissociation between selective attention and conscious awareness in the representation of temporal order information. Consciousness and Cognition 35 , pp. 274-281. ISSN 1053-8100.

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    Abstract

    Previous electrophysiological studies have shown that attentional selection processes are highly sensitive to the temporal order of task-relevant visual events. When two successively presented colour-defined target stimuli are separated by a stimulus onset asynchrony (SOA) of only 10 ms, the onset latencies of N2pc components to these stimuli (which reflect their attentional selection) precisely match their objective temporal separation. We tested whether such small onset differences are accessible to conscious awareness by instructing participants to report the category (letter or digit) of the first of two target-colour items that were separated by an SOA of 10, 20, or 30 ms. Performance was at chance level for the 10 ms SOA, demonstrating that temporal order information which is available to attentional control processes cannot be utilized for conscious temporal order judgments. These results provide new evidence that selective attention and conscious awareness are functionally separable, and support the hypothesis that attention and awareness operate at different stages of cognitive processing.

    Metadata

    Item Type: Article
    Keyword(s) / Subject(s): Selective attention, Consciousness, Visual awareness, Temporal order judgments, Event-related brain potentials
    School: Birkbeck Schools and Departments > School of Science > Psychological Sciences
    Depositing User: Administrator
    Date Deposited: 13 Feb 2015 11:24
    Last Modified: 23 Jan 2017 02:05
    URI: http://eprints.bbk.ac.uk/id/eprint/11594

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