Common neural systems associated with the recognition of famous faces and names: An event-related fMRI study |
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Authors: | Kristy A. Nielson Michael Seidenberg John L. Woodard Sally Durgerian Qi Zhang William L. Gross Amelia Gander Leslie M. Guidotti Piero Antuono Stephen M. Rao |
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Affiliation: | 1. Department of Psychology and the Integrative Neuroscience Research Center, Marquette University, Milwaukee, WI, United States;2. Foley Center for Aging and Development, Medical College of Wisconsin, Milwaukee, WI, United States;3. Functional Imaging Research Center, Medical College of Wisconsin, Milwaukee, WI, United States;4. Department of Psychiatry, Medical College of Wisconsin, Milwaukee, WI, United States;5. Department of Neurology, Medical College of Wisconsin, Milwaukee, WI, United States;6. Department of Psychology, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States;g Department of Psychology, Wayne State University, Detroit, MI, United States;h Schey Center for Cognitive Neuroimaging, Cleveland Clinic, Cleveland, OH, United States |
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Abstract: | Person recognition can be accomplished through several modalities (face, name, voice). Lesion, neurophysiology and neuroimaging studies have been conducted in an attempt to determine the similarities and differences in the neural networks associated with person identity via different modality inputs. The current study used event-related functional-MRI in 17 healthy participants to directly compare activation in response to randomly presented famous and non-famous names and faces (25 stimuli in each of the four categories). Findings indicated distinct areas of activation that differed for faces and names in regions typically associated with pre-semantic perceptual processes. In contrast, overlapping brain regions were activated in areas associated with the retrieval of biographical knowledge and associated social affective features. Specifically, activation for famous faces was primarily right lateralized and famous names were left-lateralized. However, for both stimuli, similar areas of bilateral activity were observed in the early phases of perceptual processing. Activation for fame, irrespective of stimulus modality, activated an extensive left hemisphere network, with bilateral activity observed in the hippocampi, posterior cingulate, and middle temporal gyri. Findings are discussed within the framework of recent proposals concerning the neural network of person identification. |
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Keywords: | Person-identity network Event-related functional-MRI Face-name processing Semantic memory |
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