Lesions of the fusiform face area impair perception of facial configuration in prosopagnosia
@article{Barton2002LesionsOT,
title={Lesions of the fusiform face area impair perception of facial configuration in prosopagnosia},
author={Jason J.S. Barton and Daniel Z. Press and Julian Paul Keenan and Margaret O'Connor},
journal={Neurology},
year={2002},
volume={58},
pages={71 - 78}
}Background: Prosopagnosia, the inability to recognize faces, is associated with medial occipitotemporal lesions, especially on the right. Functional imaging has revealed a focal region in the right fusiform gyrus activated specifically during face perception. Objective: The study attempted to determine whether lesions of this region were associated with defects in face perception in patients with prosopagnosia. Methods: Five patients with acquired prosopagnosia were tested. They were asked to…
359 Citations
Perceptual Functions in Prosopagnosia
- Psychology, MedicinePerception
- 2004
It is concluded that deficits in luminance, spatial resolution, curvature, line orientation, and contrast at low spatial frequencies are unlikely to contribute to apperceptive prosopagnosia, and more relevant may be contrast sensitivity at higher spatial frequencies and the analysis of object spatial structure.
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The findings suggest that prosopagnosia is more severe with bilateral than unilateral lesions, indicating a minor contribution of the left hemisphere to face recognition, and access to facial memories is most disrupted by bilateral lesions that also include the right anterior temporal lobe.
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Extensive right occipitotemporal lesions with significant deficits in face perception are not incompatible with covert face processing, indicating that these are related phenomena.
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The obtained findings demonstrate that prosopagnosia does not necessarily cause a global impairment to face perception, but a selective impairment to the perception of information in the upper half of the face.
Impaired holistic processing of unfamiliar individual faces in acquired prosopagnosia
- PsychologyNeuropsychologia
- 2010
A bilateral occipitotemporal network mediates face perception
- Psychology, BiologyBehavioural Brain Research
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