Neural mechanisms of intermodal sustained selective attention with concurrently presented auditory and visual stimuli

Katja Saupe, Erich Schröger, Søren K Andersen, Matthias M Müller

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

We investigated intermodal attention effects on the auditory steady-state response (ASSR) and the steady-state visual evoked potential (SSVEP). For this purpose, 40-Hz amplitude-modulated tones and a stream of flickering (7.5 Hz) random letters were presented concurrently. By means of an auditory or visual target detection task, participants' attention was directed to the respective modality for several seconds. Attention to the auditory stream led to a significant enhancement of the ASSR compared to when the visual stream was attended. This attentional modulation was located mainly in the right superior temporal gyrus. Vice versa, attention to the visual stream especially increased the second harmonic response of the SSVEP. This modulation was focused in the inferior occipital and lateral occipitotemporal gyrus of both hemispheres. To the best of our knowledge, this is the first demonstration of amplitude modulation of the ASSR and the SSVEP by intermodal sustained attention. Our results open a new avenue of research to understand the basic neural mechanisms of intermodal attention in the human brain.
Original languageEnglish
Article number58
Number of pages13
JournalFrontiers in Human Neuroscience
Volume3
DOIs
Publication statusPublished - 30 Nov 2009

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Visual Evoked Potentials
Temporal Lobe
Brain
Research

Keywords

  • human EEG
  • ASSR
  • SSVEP
  • sustained attention
  • intermodal
  • supramodal

Cite this

Neural mechanisms of intermodal sustained selective attention with concurrently presented auditory and visual stimuli. / Saupe, Katja; Schröger, Erich; Andersen, Søren K; Müller, Matthias M.

In: Frontiers in Human Neuroscience, Vol. 3, 58, 30.11.2009.

Research output: Contribution to journalArticle

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