Electrophysiological and haemodynamic correlates of face perception, recognition and priming.

doi:10.1093/CERCOR/13.7.793

Paper

Electrophysiological and haemodynamic correlates of face perception, recognition and priming.

Published Jul 1, 2003 · R. Henson, Y. Goshen-Gottstein, T. Ganel

Cerebral cortex

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409

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33

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Abstract

Face perception, recognition and priming were examined with event-related functional magnetic resonance imaging (fMRI) and scalp event-related potentials (ERPs). Face perception was associated with haemodynamic increases in regions including bilateral fusiform and right superior temporal cortices, and a right posterior negativity (N170), most likely generated in the superior temporal region. Face recognition was associated with haemodynamic increases in fusiform, medial frontal and orbitofrontal cortices, and with a frontocentral positivity from 550 ms poststimulus. Face repetition was associated with a positivity from 400 to 600 ms and behavioural priming. Repetition of familiar faces was also associated with earlier onset of the ERP familiarity effect, and haemodynamic decreases in fusiform cortex. These data support a multi-component model of face-processing, with priming arising from more than one stage.

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Key takeawayFace perception, recognition, and priming involve multiple stages of brain activity, with priming arising from multiple stages.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

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Paper

Electrophysiological and haemodynamic correlates of face perception, recognition and priming.

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References

Cerebral Cortex

Cerebral Cortex is a multidisciplinary journal covering the development, organization, plasticity, and function of the cerebral cortex, including the hippocampus.

Neural response suppression, haemodynamic repetition effects, and behavioural priming

Repeated stimulus processing can reduce neural activity, but current imaging techniques have interpretative limitations, making their relationship with behavioral priming difficult to determine.

Human brain potential correlates of repetition priming in face and name recognition

Repetition priming enhances recognition of familiar faces and names, reflecting a change in post-perceptual representations rather than a perceptual level.

Event-related brain potential evidence for a response of inferior temporal cortex to familiar face repetitions.

Familiar face repetitions in the inferior temporal cortex cause a strong modulation of the N250 component, with a reduced amplitude for different pictures, but still significant for repeated faces.

Perceptual integrality of sex and identity of faces: further evidence for the single-route hypothesis.

Identity and sex are processed within a single route in face recognition, challenging the idea that sex and identity are processed independently.

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