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Distractor P3 is associated with attentional capture by stimulus deviance.
Clin Neurophysiol. 2008 Jun; 119(6):1300-9.CN

Abstract

OBJECTIVE

A simple distractor elicits a large P3 when the standard and target are difficult to discriminate in the three-stimulus oddball paradigm. This study investigated whether the distractor P3 reflects attentional capture by stimulus deviance or cognitive interference with maintaining the standard representation.

METHODS

Event-related brain potentials were recorded from 12 participants who performed a visual three-stimulus oddball paradigm. Four task conditions were defined by a combination of two presentation types of distractor stimuli (central or bilateral) and two levels of standard/target discrimination difficulty (easy or difficult). Bilateral distractors had stimulus deviance but did not interfere with maintenance of the standard representation.

RESULTS

Central distractors elicited a P3, the amplitude of which was larger in the difficult task than in the easy task. In contrast, bilateral distractors elicited a large P3 in both the easy and difficult tasks.

CONCLUSIONS

Distractor P3 reflects attentional capture by stimulus deviance, rather than cognitive interference with maintaining the standard representation.

SIGNIFICANCE

This is the first report showing that simple distractors can elicit large anteriorly distributed P3 in an easy task. The present findings contribute to the clinical application of distractor P3 to assess the cognitive function of deviant processing.

Authors+Show Affiliations

Graduate School of Education, Hokkaido University, Kita-11 Nishi-7, Kita-ku, Sapporo 060-0811, Japan. sawaki@edu.hokudai.ac.jpNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18411071

Citation

Sawaki, Risa, and Jun'ichi Katayama. "Distractor P3 Is Associated With Attentional Capture By Stimulus Deviance." Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology, vol. 119, no. 6, 2008, pp. 1300-9.
Sawaki R, Katayama J. Distractor P3 is associated with attentional capture by stimulus deviance. Clin Neurophysiol. 2008;119(6):1300-9.
Sawaki, R., & Katayama, J. (2008). Distractor P3 is associated with attentional capture by stimulus deviance. Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology, 119(6), 1300-9. https://doi.org/10.1016/j.clinph.2008.01.107
Sawaki R, Katayama J. Distractor P3 Is Associated With Attentional Capture By Stimulus Deviance. Clin Neurophysiol. 2008;119(6):1300-9. PubMed PMID: 18411071.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Distractor P3 is associated with attentional capture by stimulus deviance. AU - Sawaki,Risa, AU - Katayama,Jun'ichi, Y1 - 2008/04/14/ PY - 2007/05/27/received PY - 2007/12/25/revised PY - 2008/01/25/accepted PY - 2008/4/16/pubmed PY - 2008/7/11/medline PY - 2008/4/16/entrez SP - 1300 EP - 9 JF - Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology JO - Clin Neurophysiol VL - 119 IS - 6 N2 - OBJECTIVE: A simple distractor elicits a large P3 when the standard and target are difficult to discriminate in the three-stimulus oddball paradigm. This study investigated whether the distractor P3 reflects attentional capture by stimulus deviance or cognitive interference with maintaining the standard representation. METHODS: Event-related brain potentials were recorded from 12 participants who performed a visual three-stimulus oddball paradigm. Four task conditions were defined by a combination of two presentation types of distractor stimuli (central or bilateral) and two levels of standard/target discrimination difficulty (easy or difficult). Bilateral distractors had stimulus deviance but did not interfere with maintenance of the standard representation. RESULTS: Central distractors elicited a P3, the amplitude of which was larger in the difficult task than in the easy task. In contrast, bilateral distractors elicited a large P3 in both the easy and difficult tasks. CONCLUSIONS: Distractor P3 reflects attentional capture by stimulus deviance, rather than cognitive interference with maintaining the standard representation. SIGNIFICANCE: This is the first report showing that simple distractors can elicit large anteriorly distributed P3 in an easy task. The present findings contribute to the clinical application of distractor P3 to assess the cognitive function of deviant processing. SN - 1388-2457 UR - https://www.unboundmedicine.com/medline/citation/18411071/Distractor_P3_is_associated_with_attentional_capture_by_stimulus_deviance_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1388-2457(08)00162-4 DB - PRIME DP - Unbound Medicine ER -