Format

Send to

Choose Destination
See comment in PubMed Commons below
Neuron. 2007 Sep 20;55(6):985-96.

Cerebral responses to change in spatial location of unattended sounds.

Author information

1
Department of Psychology and the Interdisciplinary Center for Neural Computation, The Hebrew University of Jerusalem, Jerusalem 91905, Israel. msleon@huji.ac.il

Abstract

The neural basis of spatial processing in the auditory cortex has been controversial. Human fMRI studies suggest that a part of the planum temporale (PT) is involved in auditory spatial processing, but it was recently argued that this region is active only when the task requires voluntary spatial localization. If this is the case, then this region cannot harbor an ongoing spatial representation of the acoustic environment. In contrast, we show in three fMRI experiments that a region in the human medial PT is sensitive to background auditory spatial changes, even when subjects are not engaged in a spatial localization task, and in fact attend the visual modality. During such times, this area responded to rare location shifts, and even more so when spatial variation increased, consistent with spatially selective adaptation. Thus, acoustic space is represented in the human PT even when sound processing is not required by the ongoing task.

PMID:
17880900
DOI:
10.1016/j.neuron.2007.08.019
[Indexed for MEDLINE]
Free full text
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Support Center