Investigating brain dynamics and connectivity with functional MRI

Eugene Duff, Gary Egan, Ross Cunnington, Iven Mareels, Binquan Wang, Peter Fox, Jinhu Xiong

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

Functional Magnetic Resonance Imaging (fMRI) scans provide a record of ongoing neural processing through the measurement of changes in regional levels of blood oxygenation. While subjects are resting, fMRI has revealed networks of brain regions exhibiting synchronised 0.02 - 0.12 Hz fluctuations in spontaneous, low frequency brain activity. The physiology underlying these 'resting state' fluctuations is poorly understood. Our current research investigates these networks within the human motor system, assessing their persistence over time, their covariance structure, and the effects that motor performance and training have on the networks. Here we present a review of this study, focusing on the methods involved in assessing the fMRI data, discussing issues of region identification, signal extraction, signal to noise, network covariance analysis and the detection of changes in the networks.

Original languageEnglish
Title of host publicationProceedings of the 2004 Intelligent Sensors, Sensor Networks and Information Processing Conference, ISSNIP '04
EditorsM. Palaniswami, B. Krishnamachari, A. Sowmya, S. Challa, M. Palaniswami, B. Krishnamachari, A. Sowmya, S. Challa
Pages565-570
Number of pages6
Publication statusPublished - 1 Dec 2004
Externally publishedYes
EventInternational Conference on Intelligent Sensors, Sensor Networks and Information Processing 2004 - Melbourne, Australia
Duration: 14 Dec 200417 Dec 2004
Conference number: 1st
https://ieeexplore.ieee.org/xpl/conhome/9710/proceeding (Proceedings)

Conference

ConferenceInternational Conference on Intelligent Sensors, Sensor Networks and Information Processing 2004
Abbreviated titleISSNIP 2004
Country/TerritoryAustralia
CityMelbourne
Period14/12/0417/12/04
Internet address

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