View-independent coding of face identity in frontal and temporal cortices is modulated by familiarity: an event-related fMRI study. Export

@article{citeulike:1233212, abstract = {Face recognition is a unique visual skill enabling us to recognize a large number of person identities, despite many differences in the visual image from one exposure to another due to changes in viewpoint, illumination, or simply passage of time. Previous familiarity with a face may facilitate recognition when visual changes are important. Using event-related fMRI in 13 healthy observers, we studied the brain systems involved in extracting face identity independent of modifications in visual appearance during a repetition priming paradigm in which two different photographs of the same face (either famous or unfamiliar) were repeated at varying delays. We found that functionally defined face-selective areas in the lateral fusiform cortex showed no repetition effects for faces across changes in image views, irrespective of pre-existing familiarity, suggesting that face representations formed in this region do not generalize across different visual images, even for well-known faces. Repetition of different but easily recognizable views of an unfamiliar face produced selective repetition decreases in a medial portion of the right fusiform gyrus, whereas distinct views of a famous face produced repetition decreases in left middle temporal and left inferior frontal cortex selectively, but no decreases in fusiform cortex. These findings reveal that different views of the same familiar face may not be integrated within a single representation at initial perceptual stages subserved by the fusiform face areas, but rather involve later processing stages where more abstract identity information is accessed.}, address = {Department of Neurosciences, Neurology and Imaging of Cognition, Clinic of Neurology, University Hospital, University Medical Center, Switzerland.}, author = {Pourtois, G. and Schwartz, S. and Seghier, M. L. and Lazeyras, F. and Vuilleumier, P.}, citeulike-article-id = {1233212}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/j.neuroimage.2004.10.038}, citeulike-linkout-1 = {http://view.ncbi.nlm.nih.gov/pubmed/15670699}, citeulike-linkout-2 = {http://www.hubmed.org/display.cgi?uids=15670699}, day = {15}, doi = {10.1016/j.neuroimage.2004.10.038}, issn = {1053-8119}, journal = {Neuroimage}, keywords = {cueing, emotion, event-related, expression, face, fmri}, month = {February}, number = {4}, pages = {1214--1224}, posted-at = {2007-05-18 05:53:18}, priority = {0}, title = {View-independent coding of face identity in frontal and temporal cortices is modulated by familiarity: an event-related fMRI study.}, url = {http://dx.doi.org/10.1016/j.neuroimage.2004.10.038}, volume = {24}, year = {2005} }

TY - JOUR ID - citeulike:1233212 L3 - citeulike-article-id:1233212 N2 - Face recognition is a unique visual skill enabling us to recognize a large number of person identities, despite many differences in the visual image from one exposure to another due to changes in viewpoint, illumination, or simply passage of time. Previous familiarity with a face may facilitate recognition when visual changes are important. Using event-related fMRI in 13 healthy observers, we studied the brain systems involved in extracting face identity independent of modifications in visual appearance during a repetition priming paradigm in which two different photographs of the same face (either famous or unfamiliar) were repeated at varying delays. We found that functionally defined face-selective areas in the lateral fusiform cortex showed no repetition effects for faces across changes in image views, irrespective of pre-existing familiarity, suggesting that face representations formed in this region do not generalize across different visual images, even for well-known faces. Repetition of different but easily recognizable views of an unfamiliar face produced selective repetition decreases in a medial portion of the right fusiform gyrus, whereas distinct views of a famous face produced repetition decreases in left middle temporal and left inferior frontal cortex selectively, but no decreases in fusiform cortex. These findings reveal that different views of the same familiar face may not be integrated within a single representation at initial perceptual stages subserved by the fusiform face areas, but rather involve later processing stages where more abstract identity information is accessed. IS - 4 JF - Neuroimage SN - 1053-8119 AD - Department of Neurosciences, Neurology and Imaging of Cognition, Clinic of Neurology, University Hospital, University Medical Center, Switzerland. EP - 1224 TI - View-independent coding of face identity in frontal and temporal cortices is modulated by familiarity: an event-related fMRI study. VL - 24 SP - 1214 KW - cueing KW - emotion KW - event-related KW - expression KW - face KW - fmri AU - Pourtois, G AU - Schwartz, S AU - Seghier, ML AU - Lazeyras, F AU - Vuilleumier, P PY - 2005/02/15/ UR - http://dx.doi.org/10.1016/j.neuroimage.2004.10.038 ER -