Title

Linear and nonlinear relationships between visual stimuli, EEG and BOLD fMRI signals

UMMS Affiliation

Department of Psychiatry

Date

4-15-2010

Document Type

Article

Medical Subject Headings

Algorithms; Brain; Electroencephalography; Evoked Potentials, Visual; Female; Humans; Linear Models; Magnetic Resonance Imaging; Male; Nonlinear Dynamics; Oxygen; Photic Stimulation; Time Factors; Visual Perception; Young Adult

Disciplines

Psychiatry

Abstract

In the present study, the cascaded interactions between stimuli and neural and hemodynamic responses were modeled using linear systems. These models provided the theoretical hypotheses that were tested against the electroencephalography (EEG) and blood oxygen level dependent (BOLD) functional magnetic resonance imaging (fMRI) data recorded from human subjects during prolonged periods of repeated visual stimuli with a variable setting of the inter-stimulus interval (ISI) and visual contrast. Our results suggest that (1) neural response is nonlinear only when ISI

Rights and Permissions

Citation: Neuroimage. 2010 Apr 15;50(3):1054-66. Epub 2010 Jan 15. Link to article on publisher's site

Related Resources

Link to Article in PubMed

PubMed ID

20079854