P300 habituation from auditory single-stimulus and oddball paradigms

Author(s): Takeshita, T., Morimoto, K.

Journal/Book: Int J Psychophysiol. 2000; 37: PO Box 211, 1000 AE Amsterdam, Netherlands. Elsevier Science Bv. 149-153.

Abstract: The habituation of auditory P300 event-related brain potential (ERP) from single-stimulus paradigm was evaluated and compared to that from oddball paradigm. Three task conditions were: oddball with a button press (oddball/press) response, single-stimulus with a button-press (single-stimulus/press) response and a silent count (single-stimulus/count) response. The oddball/press condition demonstrated larger P300 amplitude and longer latency overall than either single-stimulus condition, but P300 amplitude decreased and peak latency increased similarly over successive trial blocks for all three tasks. Thus, the oddball and single-stimulus ERP tasks produce analogous changes under repeated measurements and indicate that the single-stimulus task can serve as an alternative method for eliciting the P300 in applied and clinical settings.

Note: Article Morimoto K, Osaka Univ, Grad Sch Med, Dept Social & Environm Med, 2-2 Yamadaoka, Suita, Osaka 5650871, JAPAN

Keyword(s): clinical application; event-related brain potential (ERP); habituation; P300; oddball; single-stimulus paradigm; EVENT-RELATED POTENTIALS; VISUAL-STIMULI; RESPONSE-MODE; DEMENTIA

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