Document Type

Article

Language

eng

Format of Original

8 p.

Publication Date

4-2010

Publisher

Elsevier

Source Publication

Brain and Cognition

Source ISSN

0278-2626

Original Item ID

doi: 10.1016/j.bandc.2010.01.006; PubMed Central: PMCID 2935638

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.

Comments

Accepted version. Brain and Cognition, Vol. 72, No. 3 (April 2010): 491-498. DOI. © Elsevier 2010. Used with permission.

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