Perception of the faces

The perception of the faces indicates the process Cognitif by which the Cerveau analyzes a Image there to detect and identify a Visage.

The fundamental role which the face in the verbal Communication holds and not-verbal is at the origin of a faculty very developed at the human being and the others Primate S which consists in being able to very quickly identify a face in its environment and to be able to recognize the identity private individual of it among several hundreds of others. This very specific aptitude results from a pressure évolutionnaire and partly rests on mechanisms Neurocognitif S complexes Inné S of which some are present at the Nourrisson as of the Naissance but which continue to develop during the life.

Within the visual ways of the central Nervous system, a certain number of areas is particularly implied in the perception of the face, it is the case in particular of the spindle-shaped Aire of the faces (fusiform face area, F) which constitutes part of the spindle-shaped Gyrus on the level of the junction junction of the temporal lobes and occipital. A cerebral Lesion of these areas, and in particular of F can involve a Prosopagnosie, an incapacity specific to recognize the faces (with normal visual capacities in addition).

In electroencephalography (EEG), the presentation of the image of a face generates a Potentiel evoked in only approximately 170 ms. That gives an index of the speed of the data processing visual which allows the perception and the recognition of a face.

References

Random links: