 |
| Research article summary (published 15 Jul 2003): |
The nose smells what the eye sees: crossmodal visual facilitation of human olfactory perception.
Full Abstract
Human olfactory perception is notoriously unreliable, but shows substantial benefits from visual cues, suggesting important crossmodal integration between these primary sensory modalities. We used event-related fMRI to determine the underlying neural mechanisms of olfactory-visual integration in the human brain. Subjects participated in an olfactory detection task, whereby odors and pictures were delivered separately or together. By manipulating the degree of semantic correspondence between odor-picture pairs, we show a perceptual olfactory facilitation for semantically congruent (versus incongruent) trials. This behavioral advantage was associated with enhanced neural activity in anterior hippocampus and rostromedial orbitofrontal cortex. We suggest these findings can be interpreted as indicating that human hippocampus mediates reactivation of crossmodal semantic associations, even in the absence of explicit memory processing.
Learn Faster Today Improve your study skills
Author information
Author/s: Gottfried, Jay A (JA); Dolan, Raymond J (RJ);
Affiliation: Functional Imaging Laboratory, Wellcome Department of Imaging Neuroscience, 12 Queen Square, London WC1N 3BG, United Kingdom. j.gottfried(-atsign-)fil.ion.ucl.ac.uk
Journal and publication information
Publication Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
Journal: Neuron (Neuron), published in United States. (Language: eng)
Reference: 2003-Jul; vol 39 (issue 2) : pp 375-86
Dates: Created 2003/07/22; Completed 2003/08/18; Revised 2006/11/15;
PMID: 12873392, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
External Links for this article (including full text providers, if available):
Click Electronic Full-text Provider Links to see options for finding the electronic full text links to this article. Note there may be a subscription or fee required for access to the full text. See our FAQ for information on finding FREE full text articles.
This article may also be located in paper journal collections available in many libraries. Use the Journal and Publication Information above to find the full article.
MeSH headings (categories)
This article was linked to the MESH Headings shown below.
|
|
Related articles
This article has not been indexed for related articles as yet, however you can still use the live related article search links below.
See a large map of 100+ related articles.