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Comparison of event-related potentials in attentional blink and repetition blindness
Univ Turku, Ctr Cognit Neurosci, Turku, Finland / Univ Turku, Dept Philosophy, SF-20500 Turku, Finland.
University of Skövde, School of Humanities and Informatics.ORCID iD: 0000-0002-2771-1588
2008 (English)In: Brain Research, ISSN 0006-8993, E-ISSN 1872-6240, Vol. 1189, 115-126 p.Article in journal (Refereed) Published
Abstract [en]

Attending to the first target in rapid serial visual presentation (RSVP) interferes with processing of the second target so that the participants fail to recognize the second target if the targets are separated by a stimulus onset asynchrony of 200–500 ms. This phenomenon is attentional blink (AB). Repetition blindness (RB) is an additional difficulty to recognize the second occurrence of the same stimulus in RSVP. A controversial issue in studies of both deficits is the processing level at which they occur. To compare the timing and mechanisms of AB and RB directly during the same RSVP stream, we recorded event-related potentials (ERPs) in response to repeated and unrepeated targets. Comparable to earlier ERP studies on visual awareness, the results showed for both types of targets a negative amplitude difference between ERPs to consciously recognized and unrecognized targets during 250-350 ms from stimulus onset, suggesting that both AB and RB are associated with deficits of conscious perception, occurring at earlier stages than access to working memory. However, the perceptual deficit in RB is more severe, which may be related to higher overall negativity in response to repeated targets observed 150–300 ms after stimulus onset, suggesting stronger cortical baseline activation and higher perceptual threshold for repeated targets as compared with unrepeated ones.

Place, publisher, year, edition, pages
Elsevier B.V. , 2008. Vol. 1189, 115-126 p.
Keyword [en]
Attention, Awareness, EEG, ERP, Perception
Identifiers
URN: urn:nbn:se:his:diva-3598DOI: 10.1016/j.brainres.2007.10.082ISI: 000253291800012PubMedID: 18035339Scopus ID: 2-s2.0-44449129605OAI: oai:DiVA.org:his-3598DiVA: diva2:290819
Available from: 2010-01-28 Created: 2010-01-28 Last updated: 2016-04-28Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf