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Long-term expertise with artificial objects increases visual competition with early face categorization processes.
J Cogn Neurosci. 2007 Mar; 19(3):543-55.JC

Abstract

The degree of commonality between the perceptual mechanisms involved in processing faces and objects of expertise is intensely debated. To clarify this issue, we recorded occipito-temporal event-related potentials in response to faces when concurrently processing visual objects of expertise. In car experts fixating pictures of cars, we observed a large decrease of an evoked potential elicited by face stimuli between 130 and 200 msec, the N170. This sensory suppression was much lower when the car and face stimuli were separated by a 200-msec blank interval. With and without this delay, there was a strong correlation between the face-evoked N170 amplitude decrease and the subject's level of car expertise as measured in an independent behavioral task. Together, these results show that neural representations of faces and nonface objects in a domain of expertise compete for visual processes in the occipito-temporal cortex as early as 130-200 msec following stimulus onset.

Authors+Show Affiliations

Université catholique de Louvain, Belgium. bruno.rossion@psp.ucl.ac.beNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17335400

Citation

Rossion, Bruno, et al. "Long-term Expertise With Artificial Objects Increases Visual Competition With Early Face Categorization Processes." Journal of Cognitive Neuroscience, vol. 19, no. 3, 2007, pp. 543-55.
Rossion B, Collins D, Goffaux V, et al. Long-term expertise with artificial objects increases visual competition with early face categorization processes. J Cogn Neurosci. 2007;19(3):543-55.
Rossion, B., Collins, D., Goffaux, V., & Curran, T. (2007). Long-term expertise with artificial objects increases visual competition with early face categorization processes. Journal of Cognitive Neuroscience, 19(3), 543-55.
Rossion B, et al. Long-term Expertise With Artificial Objects Increases Visual Competition With Early Face Categorization Processes. J Cogn Neurosci. 2007;19(3):543-55. PubMed PMID: 17335400.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Long-term expertise with artificial objects increases visual competition with early face categorization processes. AU - Rossion,Bruno, AU - Collins,Daniel, AU - Goffaux,Valérie, AU - Curran,Tim, PY - 2007/3/6/pubmed PY - 2007/5/3/medline PY - 2007/3/6/entrez SP - 543 EP - 55 JF - Journal of cognitive neuroscience JO - J Cogn Neurosci VL - 19 IS - 3 N2 - The degree of commonality between the perceptual mechanisms involved in processing faces and objects of expertise is intensely debated. To clarify this issue, we recorded occipito-temporal event-related potentials in response to faces when concurrently processing visual objects of expertise. In car experts fixating pictures of cars, we observed a large decrease of an evoked potential elicited by face stimuli between 130 and 200 msec, the N170. This sensory suppression was much lower when the car and face stimuli were separated by a 200-msec blank interval. With and without this delay, there was a strong correlation between the face-evoked N170 amplitude decrease and the subject's level of car expertise as measured in an independent behavioral task. Together, these results show that neural representations of faces and nonface objects in a domain of expertise compete for visual processes in the occipito-temporal cortex as early as 130-200 msec following stimulus onset. SN - 0898-929X UR - https://www.unboundmedicine.com/medline/citation/17335400/Long_term_expertise_with_artificial_objects_increases_visual_competition_with_early_face_categorization_processes_ DB - PRIME DP - Unbound Medicine ER -