Brain Signals of Face Processing as Revealed by Event-Related Potentials

Joint Authors

Olivares, Ela I.
Iglesias, Jaime
Saavedra, Cristina
Trujillo-Barreto, Nelson J.
Valdés-Sosa, Mitchell

Source

Behavioural Neurology

Issue

Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-16, 16 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2015-06-16

Country of Publication

Egypt

No. of Pages

16

Main Subjects

Biology
Medicine

Abstract EN

We analyze the functional significance of different event-related potentials (ERPs) as electrophysiological indices of face perception and face recognition, according to cognitive and neurofunctional models of face processing.

Initially, the processing of faces seems to be supported by early extrastriate occipital cortices and revealed by modulations of the occipital P1.

This early response is thought to reflect the detection of certain primary structural aspects indicating the presence grosso modo of a face within the visual field.

The posterior-temporal N170 is more sensitive to the detection of faces as complex-structured stimuli and, therefore, to the presence of its distinctive organizational characteristics prior to within-category identification.

In turn, the relatively late and probably more rostrally generated N250r and N400-like responses might respectively indicate processes of access and retrieval of face-related information, which is stored in long-term memory (LTM).

New methods of analysis of electrophysiological and neuroanatomical data, namely, dynamic causal modeling, single-trial and time-frequency analyses, are highly recommended to advance in the knowledge of those brain mechanisms concerning face processing.

American Psychological Association (APA)

Olivares, Ela I.& Iglesias, Jaime& Saavedra, Cristina& Trujillo-Barreto, Nelson J.& Valdés-Sosa, Mitchell. 2015. Brain Signals of Face Processing as Revealed by Event-Related Potentials. Behavioural Neurology،Vol. 2015, no. 2015, pp.1-16.
https://search.emarefa.net/detail/BIM-1057546

Modern Language Association (MLA)

Olivares, Ela I.…[et al.]. Brain Signals of Face Processing as Revealed by Event-Related Potentials. Behavioural Neurology No. 2015 (2015), pp.1-16.
https://search.emarefa.net/detail/BIM-1057546

American Medical Association (AMA)

Olivares, Ela I.& Iglesias, Jaime& Saavedra, Cristina& Trujillo-Barreto, Nelson J.& Valdés-Sosa, Mitchell. Brain Signals of Face Processing as Revealed by Event-Related Potentials. Behavioural Neurology. 2015. Vol. 2015, no. 2015, pp.1-16.
https://search.emarefa.net/detail/BIM-1057546

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1057546