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Human Brain Mapping
Article . 2011 . Peer-reviewed
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Auditory motion direction encoding in auditory cortex and high‐level visual cortex

Authors: Alink, Arjen; Euler, Felix; Kriegeskorte, Nikolaus; Singer, Wolf; Kohler, Axel;

Auditory motion direction encoding in auditory cortex and high‐level visual cortex

Abstract

AbstractThe aim of this functional magnetic resonance imaging (fMRI) study was to identify human brain areas that are sensitive to the direction of auditory motion. Such directional sensitivity was assessed in a hypothesis‐free manner by analyzing fMRI response patterns across the entire brain volume using a spherical‐searchlight approach. In addition, we assessed directional sensitivity in three predefined brain areas that have been associated with auditory motion perception in previous neuroimaging studies. These were the primary auditory cortex, the planum temporale and the visual motion complex (hMT/V5+). Our whole‐brain analysis revealed that the direction of sound‐source movement could be decoded from fMRI response patterns in the right auditory cortex and in a high‐level visual area located in the right lateral occipital cortex. Our region‐of‐interest‐based analysis showed that the decoding of the direction of auditory motion was most reliable with activation patterns of the left and right planum temporale. Auditory motion direction could not be decoded from activation patterns in hMT/V5+. These findings provide further evidence for the planum temporale playing a central role in supporting auditory motion perception. In addition, our findings suggest a cross‐modal transfer of directional information to high‐level visual cortex in healthy humans. Hum Brain Mapp, 2012. © 2011 Wiley Periodicals, Inc.

Country
Switzerland
Keywords

Adult, Auditory Cortex, Male, Brain Mapping, Motion Perception, Magnetic Resonance Imaging, Young Adult, Acoustic Stimulation, Image Interpretation, Computer-Assisted, Auditory Perception, Humans, Female, Photic Stimulation, Visual Cortex

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
59
Top 10%
Top 10%
Top 10%
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