Learning alters local face space geometry.

Hugh R Wilson; Andreea Diaconescu

doi:10.1016/j.visres.2006.08.001

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PubMed · 17007901

Learning alters local face space geometry.

Hugh R Wilson·Andreea Diaconescu

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Abstract

The effects of learning on the geometry of face space were investigated by measuring thresholds for discrimination and recognition of synthetic faces. This was based on a novel experimental technique that permitted measurement of psychometric functions for face recognition. Two major results were obtained. First, thresholds for face recognition were significantly better than thresholds for discrimination among novel faces. Second, rapid discrimination in the neighborhood of learned faces was better than discrimination near novel faces. Control experiments showed that this discrimination improvement occurred only with learned faces, and it could not be explained by generalized discrimination learning. Thus, face learning selectively alters or distorts face space in the vicinity of learned faces. This alteration may be due to an improvement in the signal/noise ratio as a result of face learning.

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Discrimination, Psychological Face Female Humans Learning Male Memory Pattern Recognition, Visual Photic Stimulation Psychometrics Recognition, Psychology Sensory Thresholds Journal Article Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't

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Hugh R Wilson, Andreea Diaconescu. 2006-09-27. Learning alters local face space geometry.. https://doi.org/10.1016/j.visres.2006.08.001

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