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

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 1...

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Bibliographic Details
Published in:NeuroImage (Orlando, Fla.) Fla.), 2006-08, Vol.32 (2), p.778-789
Main Authors: Dolan, R.J., Heinze, H.J., Hurlemann, R., Hinrichs, H.
Format: Article
Language:English
Subjects:
Acquisitions & mergers
Adult
Amygdala - physiology
Anger - physiology
Association Learning - physiology
Attention - physiology
Auditory Perception - physiology
Auditory processing
Aversive conditioning
Brain
Brain Mapping
Cerebral Cortex - physiology
Conditioning, Classical - physiology
Dominance, Cerebral - physiology
Electroencephalography
Emotions - physiology
Face processing
Facial Expression
Female
Humans
Image Processing, Computer-Assisted
Imaging, Three-Dimensional
Magnetic Resonance Imaging
Magnetoencephalography
Medical imaging
MEG
Monitoring systems
Noise
Pattern Recognition, Visual - physiology
Reaction Time - physiology
Sensory perception
Signal Processing, Computer-Assisted
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Summary: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.
ISSN:1053-8119
1095-9572
DOI:10.1016/j.neuroimage.2006.04.206