Methods and Approaches for Characterizing Learning Related Changes Observed in functional MRI Data — A Review

Bapi, Raju S. and Pammi, V. S. Chandrasekhar and Miyapuram, K. P. (2003) Methods and Approaches for Characterizing Learning Related Changes Observed in functional MRI Data — A Review. [Conference Poster]

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Brain imaging data have so far revealed a wealth of information about neuronal circuits involved in higher mental functions like memory, attention, emotion, language etc. Our efforts are toward understanding the learning related effects in brain activity during the acquisition of visuo-motor sequential skills. The aim of this paper is to survey various methods and approaches of analysis that allow the characterization of learning related changes in fMRI data. Traditional imaging analysis using the Statistical Parametric Map (SPM) approach averages out temporal changes and presents overall differences between different stages of learning. We outline other potential approaches for revealing learning effects such as statistical time series analysis, modelling of haemodynamic response function and independent component analysis. We present example case studies from our visuo-motor sequence learning experiments to describe application of SPM and statistical time series analyses. Our review highlights that the problem of characterizing learning induced changes in fMRI data remains an interesting and challenging open research problem.

Item Type:Conference Poster
Keywords:General Linear Model, Learning, SPM, modelling HRF, time series analysis, ICA
Subjects:Neuroscience > Brain Imaging
ID Code:5145
Deposited By: Miyapuram, Mr Krishna
Deposited On:17 Sep 2006
Last Modified:11 Mar 2011 08:56

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