1985
DOI: 10.1093/geronj/40.6.721
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Effects of Age on the P300 Component of the Event-related Potential From Auditory Stimuli: Peak Definition, Variation, and Measurement

Abstract: An auditory " oddball" paradigm was used to elicit the P300 component or the event-related brain potential (ERP) from a large sample of young (5 to 15 years) and older (20 to 86 years) persons. Distinct Pla and P3b subcomponents or the P300 were observed within individuals and across trial blocks. Age affected P300 latency in a similar fashion for both subcomponents with latency increasing about 65 msec between 20 and 70 years. P300 latency variability also was found to increase somewhat with advanced age. The… Show more

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Cited by 183 publications
(74 citation statements)
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“…The results obtained for age-related changes in latency are consistent with previous reports in which children/ adolescents of a similar age range showed reduction in latency with age in both the auditory (Polich et al 1985;Pearce et al 1989) and visual conditions (Courchesne 1977(Courchesne , 1978. In the present study latency was also analyzed with respect to risk group differences.…”
Section: Discussionsupporting
confidence: 91%
“…The results obtained for age-related changes in latency are consistent with previous reports in which children/ adolescents of a similar age range showed reduction in latency with age in both the auditory (Polich et al 1985;Pearce et al 1989) and visual conditions (Courchesne 1977(Courchesne , 1978. In the present study latency was also analyzed with respect to risk group differences.…”
Section: Discussionsupporting
confidence: 91%
“…If a stimulus attribute change is detected, attentional processes “update” the stimulus representation in working memory and a resulting P300 is recorded (Polich et al. 1985; Fabiani et al. 1986).…”
Section: Discussionmentioning
confidence: 99%
“…É consenso na literatura a recomendação da marcação da latência do P300 no maior pico ou ponto de máxima amplitude da onda 10,26,16,27,14,9,8,5,3,18 .…”
Section: Não Marcou a Latência No Maior Pico Ou Ponto De Máxima Ampliunclassified
“…É importante o entendimento sobre a variação normal da latência do P300 já que, na prática clínica, a definição de "anormalidade" é baseada nos desvios da média da população por 2 ou 3 desvios-padrão 26 . Segundo os autores, as dificuldades ao redor da identificação dos componentes surgem, além das variações nos parâmetros do estímulo, das diferenças individuais na morfologia da onda e variabilidade de latência, as quais estão presentes numa população com grande extensão de faixa etária.…”
Section: | 80msunclassified
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