The effects of age on the N200 component of the auditory event-related potentials

Hideo Enoki, Satoshi Sanada, Harumi Yoshinaga, Eiji Oka, Shunsuke Ohtahara

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

This study was undertaken to determine the effects of development and aging on N200 of event-related potentials from childhood to adulthood. Event-related potentials were recorded from 164 normal subjects ranging in age from 4 to 77 years. A total of 127 of the 164 subjects demonstrated N200 peaks. N200 showed marked developmental changes. During childhood, the N200 latency decreased rapidly with age to the minimum (217±17.3 ms) at 16 years of age, while it was prolonged gradually with age during adulthood. The latency/age slope in the subjects from 5 to 15 years of age was -9.03 ms/year, while +0.97 ms/year in those from 16 to 77. The N200-P300 interpeak latency remained constant in all age groups and showed no age-related changes. The N200 amplitude decreased as age increased. Nineteen young cases showed N200 peaks to the frequent stimuli. Their ages ranged from 5 to 17 years. Our study suggests that N200 is valuable in evaluating the developmental and aging processes in the central nervous system. The results of this study could be used as normative data in clinical practices.

Original languageEnglish
Pages (from-to)161-167
Number of pages7
JournalCognitive Brain Research
Volume1
Issue number3
DOIs
Publication statusPublished - Oct 1993

    Fingerprint

Keywords

  • Aging
  • Child
  • Development
  • Event-related potential
  • N200
  • P300

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience
  • Behavioral Neuroscience

Cite this