Magnetoencephalography (MEG) determined temporal modulation of visual and auditory sensory processing in the context of classical conditioning to faces.

Full Abstract

Using magnetoencephalography (MEG), we determined the time course of sensory-evoked modulations during differential aversive conditioning to faces, with an aversive noise event (UCS). Conditioning was associated with the development of a differential event-related waveform peaking at approximately 150 ms. Source analysis indicated the localization of this modulation to ventral occipital regions. In the auditory domain, a modulation of auditory-evoked responses to a probe sound was evident in a late component emerging at approximately 180 ms over sensors in fronto-temporal regions. The findings indicate the time course in processing sensory stimuli can be altered on the basis of their acquired value.

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Author information

Author/s: Dolan, R J (RJ); Heinze, H J (HJ); Hurlemann, R (R); Hinrichs, H (H);

Affiliation: Institute of Neurology, University College London, UK. r.dolan(-atsign-)fil.ion.ucl.ac.uk

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: NeuroImage (Neuroimage), published in United States. (Language: eng)

Reference: 2006-Aug; vol 32 (issue 2) : pp 778-89

Dates: Created 2006/08/07; Completed 2006/10/18; Revised 2006/11/15;

PMID: 16784875, status: MEDLINE (last retrieval date: 12/26/2008)

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adult
Amygdala - physiology
Anger - physiology
Association Learning - physiology
Attention - physiology
Auditory Perception - physiology
Brain Mapping
Cerebral Cortex - physiology
Conditioning, Classical - physiology
Dominance, Cerebral - physiology
Emotions - physiology

Facial Expression
Female
Humans
Image Processing, Computer-Assisted
Imaging, Three-Dimensional
Magnetic Resonance Imaging
Magnetoencephalography
Noise
Pattern Recognition, Visual - physiology
Reaction Time - physiology
Signal Processing, Computer-Assisted

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