Computer Vision, Graphics, and Image Processing - Special issue on human and machine vission, part II
Image-based object recognition in man, monkey and machine
Object recognition in man, monkey, and machine
Recovery of 3D volume from 2-tone images of novel objects
Object recognition in man, monkey, and machine
Perceptual Organization and Visual Recognition
Perceptual Organization and Visual Recognition
Can Face Recognition Really be Dissociated from Object Recognition?
Journal of Cognitive Neuroscience
Semantic and Visual Determinants of Face Recognition in a Prosopagnosic Patient
Journal of Cognitive Neuroscience
Face-specific processing in the human fusiform gyrus
Journal of Cognitive Neuroscience
Journal of Cognitive Neuroscience
Dissociations of Face and Object Recognition in Developmental Prosopagnosia
Journal of Cognitive Neuroscience
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RP is a case of "developmental" prosopagnosia who, according to brain-imaging segmentation data, shows reduction in volume of a limited set of structures of the right hemisphere. RP is as accurate as control subjects in tasks requiring the perception of nonface objects (e.g., matching subordinate labels to exemplars, naming two-tone images), with the exception of one perceptual task: The matching of different perspectives of amoebae-like stimuli (i.e., volumes made of a single smooth surface). In terms of speed ("efficiency") of responses, RP's performance falls clearly outside the normal limits also in other tasks that include "natural" but nonface stimuli (i.e., animals, artia facts). Specifically, RP is slow in perceptual judgments made at very low (subordinate) levels of semantic categorization and for objects and artifacts whose geometry present much curved features and surface information. We conclude from these analyses that prosopagnosia can be the result of a deficit in the representation of basic geometric volumes made of curved surface. In turn, this points to the importance (necessity) for the normal visual system of such curved and volumetric information in the identification of human faces.