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Electrophysiological neural mechanisms for detection, configural analysis and recognition of faces.
Neuroimage. 2007 Oct 01; 37(4):1407-16.N

Abstract

Despite ample explorations the nature of neural mechanisms underlying human expertise in face perception is still undetermined. Here we examined the response of two electrophysiological signals, the N170 ERP and induced gamma-band activity (>20 Hz), to face orientation and familiarity across two blocks, one in which the face identity was task-relevant and one in which it was not. N170 amplitude to inverted faces was higher than to upright faces and was not influenced by face familiarity or its task relevancy. In contrast, induced gamma activity was higher for upright than for inverted faces and for familiar than unfamiliar faces. The effect of face inversion was found in lower gamma frequency band (25-50 Hz), whereas familiarity affected amplitudes in higher gamma frequency band (50-70 Hz). For gamma, the relevance of face identity to the task modulated both inversion and familiarity effects. These findings pinpoint three functionally dissociated neural mechanisms involved in face processing, namely, detection, configural analysis, and recognition.

Authors+Show Affiliations

Department of Psychology, Hebrew University of Jerusalem, Jerusalem 91905, Israel. danaki@mscc.huji.ac.ilNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural

Language

eng

PubMed ID

17689102

Citation

Anaki, David, et al. "Electrophysiological Neural Mechanisms for Detection, Configural Analysis and Recognition of Faces." NeuroImage, vol. 37, no. 4, 2007, pp. 1407-16.
Anaki D, Zion-Golumbic E, Bentin S. Electrophysiological neural mechanisms for detection, configural analysis and recognition of faces. Neuroimage. 2007;37(4):1407-16.
Anaki, D., Zion-Golumbic, E., & Bentin, S. (2007). Electrophysiological neural mechanisms for detection, configural analysis and recognition of faces. NeuroImage, 37(4), 1407-16.
Anaki D, Zion-Golumbic E, Bentin S. Electrophysiological Neural Mechanisms for Detection, Configural Analysis and Recognition of Faces. Neuroimage. 2007 Oct 1;37(4):1407-16. PubMed PMID: 17689102.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Electrophysiological neural mechanisms for detection, configural analysis and recognition of faces. AU - Anaki,David, AU - Zion-Golumbic,Elana, AU - Bentin,Shlomo, Y1 - 2007/06/14/ PY - 2007/02/08/received PY - 2007/04/17/revised PY - 2007/05/22/accepted PY - 2007/8/11/pubmed PY - 2007/12/6/medline PY - 2007/8/11/entrez SP - 1407 EP - 16 JF - NeuroImage JO - Neuroimage VL - 37 IS - 4 N2 - Despite ample explorations the nature of neural mechanisms underlying human expertise in face perception is still undetermined. Here we examined the response of two electrophysiological signals, the N170 ERP and induced gamma-band activity (>20 Hz), to face orientation and familiarity across two blocks, one in which the face identity was task-relevant and one in which it was not. N170 amplitude to inverted faces was higher than to upright faces and was not influenced by face familiarity or its task relevancy. In contrast, induced gamma activity was higher for upright than for inverted faces and for familiar than unfamiliar faces. The effect of face inversion was found in lower gamma frequency band (25-50 Hz), whereas familiarity affected amplitudes in higher gamma frequency band (50-70 Hz). For gamma, the relevance of face identity to the task modulated both inversion and familiarity effects. These findings pinpoint three functionally dissociated neural mechanisms involved in face processing, namely, detection, configural analysis, and recognition. SN - 1053-8119 UR - https://www.unboundmedicine.com/medline/citation/17689102/Electrophysiological_neural_mechanisms_for_detection_configural_analysis_and_recognition_of_faces_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1053-8119(07)00484-3 DB - PRIME DP - Unbound Medicine ER -