Auditory P300 development from an active, passive and single-tone paradigms

Author(s): Barajas, J. J.

Journal/Book: Int J Psychophysiol. 1999; 33: PO Box 211, 1000 AE Amsterdam, Netherlands. Elsevier Science Bv. 99-111.

Abstract: The P300 (P3) event-related brain potential (ERP) was elicited with auditory stimuli in order to compare three different tasks and to assess the effect of ageing from childhood to adolescence. Seventy-two subjects, ranging in age from 6 to 14 divided into three age groups, were selected for this study. In the active task, the subject was required to discriminate between standard and target tones (oddball); in the passive task condition, the subject did not respond to either the standard or target stimulus; in the single task, a target but not a standard tone stimulus was presented and the subject was required to react to the target tone. Our results show that the passive sequence and the single-tone paradigm yielded similar P300 waveform to those obtained from the active task. Separate age/ERP component latency and amplitude linear regression were computed. A significant negative correlation between age and P3 latency was found. The event-related potential P3 wave shows consistent and significant age-related changes in human cerebral function, regardless of the methodology used. These findings suggest that the passive and single-tone paradigms can be a useful way to elicit the:he P3 ERP component.

Note: Article Zenker F, Clin Barajas, C Perez Rozas 8, Santa Cruz De Tenerife 38004, Canary Island, SPAIN

Keyword(s): event related potentials (ERPs); P3(00); active paradigm; passive paradigm; single-tone paradigm; EVENT-RELATED POTENTIALS; BRAIN POTENTIALS; ALZHEIMER-TYPE; MEMORY SPAN; STIMULI; LATENCY; AGE; COMPONENT; CHILDREN; DEMENTIA

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