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Human brain activity associated with audiovisual perception and attention

Degerman, Alexander; Rinne, Teemu; Pekkola, Johanna LU ; Autti, Taina; Jaaskelainen, Iiro P; Sams, Mikko and Alho, Kimmo (2007) In NeuroImage 34(4). p.1683-1691
Abstract
Coherent perception of objects in our environment often requires perceptual integration of auditory and visual information. Recent behavioral data suggest that audiovisual integration depends on attention. The current study investigated the neural basis of audiovisual integration using 3-Tesla functional magnetic resonance imaging (fMRI) in 12 healthy volunteers during attention to auditory or visual features, or audiovisual feature combinations of abstract stimuli (simultaneous harmonic sounds and colored circles). Audiovisual attention was found to modulate activity in the same frontal, temporal, parietal and occipital cortical regions as auditory and visual attention. In addition, attention to audiovisual feature combinations produced... (More)
Coherent perception of objects in our environment often requires perceptual integration of auditory and visual information. Recent behavioral data suggest that audiovisual integration depends on attention. The current study investigated the neural basis of audiovisual integration using 3-Tesla functional magnetic resonance imaging (fMRI) in 12 healthy volunteers during attention to auditory or visual features, or audiovisual feature combinations of abstract stimuli (simultaneous harmonic sounds and colored circles). Audiovisual attention was found to modulate activity in the same frontal, temporal, parietal and occipital cortical regions as auditory and visual attention. In addition, attention to audiovisual feature combinations produced stronger activity in the superior temporal cortices than attention to only auditory or visual features. These modality-specific areas might be involved in attention-dependent perceptual binding of synchronous auditory and visual events into coherent audiovisual objects. Furthermore, the modality-specific temporal auditory and occipital visual cortical areas showed attention-related modulations during both auditory and visual attention tasks. This result supports the proposal that attention to stimuli in one modality can spread to encompass synchronously presented stimuli in another modality. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Audiovisual integration, Attention, Functional magnetic resonance imaging (fMRI)
in
NeuroImage
volume
34
issue
4
pages
1683 - 1691
publisher
Elsevier
external identifiers
  • pmid:17204433
  • scopus:33846597947
ISSN
1095-9572
DOI
10.1016/j.neuroimage.2006.11.019
language
English
LU publication?
yes
id
d28d32c2-5a43-40c0-bc41-9a00c2289877 (old id 1142346)
date added to LUP
2008-08-11 11:15:23
date last changed
2017-04-16 03:38:40
@article{d28d32c2-5a43-40c0-bc41-9a00c2289877,
  abstract     = {Coherent perception of objects in our environment often requires perceptual integration of auditory and visual information. Recent behavioral data suggest that audiovisual integration depends on attention. The current study investigated the neural basis of audiovisual integration using 3-Tesla functional magnetic resonance imaging (fMRI) in 12 healthy volunteers during attention to auditory or visual features, or audiovisual feature combinations of abstract stimuli (simultaneous harmonic sounds and colored circles). Audiovisual attention was found to modulate activity in the same frontal, temporal, parietal and occipital cortical regions as auditory and visual attention. In addition, attention to audiovisual feature combinations produced stronger activity in the superior temporal cortices than attention to only auditory or visual features. These modality-specific areas might be involved in attention-dependent perceptual binding of synchronous auditory and visual events into coherent audiovisual objects. Furthermore, the modality-specific temporal auditory and occipital visual cortical areas showed attention-related modulations during both auditory and visual attention tasks. This result supports the proposal that attention to stimuli in one modality can spread to encompass synchronously presented stimuli in another modality.},
  author       = {Degerman, Alexander and Rinne, Teemu and Pekkola, Johanna and Autti, Taina and Jaaskelainen, Iiro P and Sams, Mikko and Alho, Kimmo},
  issn         = {1095-9572},
  keyword      = {Audiovisual integration,Attention,Functional magnetic resonance imaging (fMRI)},
  language     = {eng},
  number       = {4},
  pages        = {1683--1691},
  publisher    = {Elsevier},
  series       = {NeuroImage},
  title        = {Human brain activity associated with audiovisual perception and attention},
  url          = {http://dx.doi.org/10.1016/j.neuroimage.2006.11.019},
  volume       = {34},
  year         = {2007},
}