eprintid: 2942
rev_number: 10
eprint_status: archive
userid: 72
dir: disk0/00/00/29/42
datestamp: 2015-12-01 12:42:36
lastmod: 2016-09-13 09:53:21
status_changed: 2015-12-01 12:42:36
type: conference_item
metadata_visibility: show
creators_name: Gaglianese, Anna
creators_name: Costagli, Mauro
creators_name: Bernardi, Giulio
creators_name: Sani, Lorenzo
creators_name: Ricciardi, Emiliano
creators_name: Pietrini, Pietro
creators_id: 
creators_id: 
creators_id: 
creators_id: 
creators_id: emiliano.ricciardi@imtlucca.it
creators_id: pietro.pietrini@imtlucca.it
title: Conditional granger causality analysis of fMRI data shows a direct connection from LGN to hMT+ bypassing V1
ispublished: pub
subjects: RC0321
divisions: CSA
full_text_status: public
pres_type: lecture
abstract: The human middle temporal complex (hMT+) is devoted to motion perception. To determine whether motion-related neural information may reach hMT+ directly from the thalamus, by-passing the primary visual cortex (V1), we measured effective connectivity in an optic flow fMRI experiment in humans. Conditional Granger Causality analysis was employed to measure direct influences between the lateral geniculate nucleus (LGN) and hMT+, discarding indirect effects mediated by V1. Results indicated the existence of a bilateral alternative pathway for visual motion processing that allows for a direct flow of information from LGN to hMT+. This direct link may play a role in blindsight.
date: 2011-05
date_type: published
publisher: The International Society for Magnetic Resonance in Medicine
event_title: 19th meeting of the international society for magnetic resonance in medicine
event_location: Montreal, Quebec, Canada
event_dates: 7-13 May 2011
event_type: conference
refereed: TRUE
book_title: 2011 Annual Meeting Proceedings of the International Society for Magnetic Resonance in Medicine
citation:   Gaglianese, Anna and Costagli, Mauro and Bernardi, Giulio and Sani, Lorenzo and Ricciardi, Emiliano and Pietrini, Pietro  Conditional granger causality analysis of fMRI data shows a direct connection from LGN to hMT+ bypassing V1.  In: 19th meeting of the international society for magnetic resonance in medicine, 7-13 May 2011, Montreal, Quebec, Canada         (2011)  
document_url: http://eprints.imtlucca.it/2942/1/3554.pdf