Spatial scaling factors explain eccentricity effects on face ERPs.

Rousselet, G.A. , Husk, J.S., Bennett, P.J. and Sekuler, A.B. (2005) Spatial scaling factors explain eccentricity effects on face ERPs. Journal of Vision, 5(10), pp. 755-763.

Abstract

Event-related potential (ERP) studies consistently have described a strong, face-sensitive response termed the N170. This component is maximal at the fovea and decreases strongly with eccentricity, a result that could suggest a foveal bias in the cortical generators responsible for face processing. Here we demonstrate that scaling stimulus size according to V1 cortical magnification factor can virtually eliminate face-related eccentricity effects, indicating that eccentricity effects on face ERPs are largely due to low-level visual factors rather than high-level cortical specialization for foveal stimuli.\r\n\r\nThe article can be downloaded here:\r\nhttp://journalofvision.org/5/10/1/\r\n

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Rousselet, Dr Guillaume
• Authors: Rousselet, G.A., Husk, J.S., Bennett, P.J., and Sekuler, A.B.
• College/School: College of Science and Engineering > School of Psychology; College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience
• Journal Name: Journal of Vision