Rapid categorization of faces and objects in a patient with impaired object recognition

Neurocase
Muriel BoucartMichele Fabre-Thorpe

Abstract

We tested rapid-categorization in a patient who was impaired in face and object recognition. Photographs of natural scenes were displayed for 100 ms. Participants had to press a key when they saw an animal among various objects as distractors or human faces among animal faces as distractors. Though the patient was impaired at figure/ground segregation, recognized very few objects and faces, she categorized animals and faces with a performance ranging between 70 and 86% correct. Displaying pictures in isolation did not improve performance. The results suggest that rapid categorization can be accomplished on the basis of coarse information without overt recognition.

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Citations

Feb 21, 2013·Experimental Aging Research·Quentin LenobleSandrine Delord
Mar 19, 2011·Neuropsychologia·Kristine M KnutsonJordan Grafman
Apr 8, 2015·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Miguel ThibautMuriel Boucart

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