eprintid: 3374
rev_number: 6
eprint_status: archive
userid: 6
dir: disk0/00/00/33/74
datestamp: 2016-04-05 10:24:52
lastmod: 2016-09-13 10:15:35
status_changed: 2016-04-05 10:24:52
type: article
metadata_visibility: show
creators_name: Pietrini, Pietro
creators_name: Furey, Maura L.
creators_name: Ricciardi, Emiliano
creators_name: Gobbini, Maria Ida
creators_name: Wu, W.-H. Carolyn
creators_name: Cohen, Leonardo
creators_name: Guazzelli, Mario
creators_name: Haxby, James V.
creators_id: pietro.pietrini@imtlucca.it
creators_id: 
creators_id: emiliano.ricciardi@imtlucca.it
creators_id: 
creators_id: 
creators_id: 
creators_id: 
creators_id: 
title: Beyond sensory images: Object-based representation in the human ventral pathway
ispublished: pub
subjects: RC0321
divisions: CSA
full_text_status: none
keywords: haptic perception; fMRI; supramodal cortex
abstract: We investigated whether the topographically organized, category-related patterns of neural response in the ventral visual pathway are a representation of sensory images or a more abstract representation of object form that is not dependent on sensory modality. We used functional MRI to measure patterns of response evoked during visual and tactile recognition of faces and manmade objects in sighted subjects and during tactile recognition in blind subjects. Results showed that visual and tactile recognition evoked category-related patterns of response in a ventral extrastriate visual area in the inferior temporal gyrus that were correlated across modality for manmade objects. Blind subjects also demonstrated category-related patterns of response in this “visual” area, and in more ventral cortical regions in the fusiform gyrus, indicating that these patterns are not due to visual imagery and, furthermore, that visual experience is not necessary for category-related representations to develop in these cortices. These results demonstrate that the representation of objects in the ventral visual pathway is not simply a representation of visual images but, rather, is a representation of more abstract features of object form.
date: 2004
date_type: published
publication: Proceedings of the National Academy of Sciences
volume: 101
number: 15
pagerange: 5658-5663
id_number: doi:10.1073/pnas.0400707101
refereed: TRUE
issn: 1091-6490
official_url: http://doi.org/10.1073/pnas.0400707101
citation:   Pietrini, Pietro and Furey, Maura L. and Ricciardi, Emiliano and Gobbini, Maria Ida and Wu, W.-H. Carolyn and Cohen, Leonardo and Guazzelli, Mario and Haxby, James V.  Beyond sensory images: Object-based representation in the human ventral pathway.  Proceedings of the National Academy of Sciences, 101 (15).  pp. 5658-5663.  ISSN 1091-6490      (2004)