Age and novelty: Event-related potentials to visual stimuli within an auditory oddball-visual detection task

I. Czigler, Lívia Pató, Emese Poszet, László Balázs

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Age-related change of event-related potentials to novel visual stimuli was investigated while participants attended to both auditory and visual stimulation. Meaningful but irrelevant pictures (novel stimuli) were presented to younger (mean = 21.8, range = 18-26 years) and older (mean = 70.0, range = 60-78) participants (10 in each group). The participants were performing an auditory oddball task and counting silently the changes of a visually presented letter. In the younger group novel stimuli elicited a posterior positivity in the 220-255 ms range. This component habituated to the repetition of the same picture. In the older group this component had longer latency, and did not habituate. A later positivity had shorter latency and larger amplitude in the younger group, but this positivity was preceded by a negative component (N2b) only in the elderly. Results show decreased sensitivity to the content of the visual stimuli in an earlier stage of novelty processing in the elderly, and the age-related slowing of both orientation-related and task-related processes.

Original languageEnglish
Pages (from-to)290-299
Number of pages10
JournalInternational Journal of Psychophysiology
Volume62
Issue number2
DOIs
Publication statusPublished - Nov 2006

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Evoked Potentials
Acoustic Stimulation
Photic Stimulation

Keywords

  • Aging
  • Attention
  • Event-related potentials
  • N2b
  • Novelty processing
  • P3

ASJC Scopus subject areas

  • Behavioral Neuroscience

Cite this

Age and novelty : Event-related potentials to visual stimuli within an auditory oddball-visual detection task. / Czigler, I.; Pató, Lívia; Poszet, Emese; Balázs, László.

In: International Journal of Psychophysiology, Vol. 62, No. 2, 11.2006, p. 290-299.

Research output: Contribution to journalArticle

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