Attention to Visual Motion fMRI data ==================================== This dataset was collected by Christian Buchel and is described in the paper. Buchel, C and K. Friston (1997). Modulation of Connectivity in Visual Pathways by Attention: Cortical Interactions Evaluated with Structural Equation Modelling and fMRI, Cerebral Cortex, December, 7, pp 768-778. This archive contains the smoothed, spatially normalised, realigned, slice-time corrected images in the directory 'functional'. The directory 'structural' contains a spatially normalised structural image. All processing took place using SPM96. See above paper for further details. The archive contains the files: functional/snffM00640_*.img structural/nsM00587_002.* factors.mat conditions.mat corr_look.m README_DATA.txt README_GLM_PPI.txt README_GLM_DCM.txt The file 'conditions.mat' contains the scan indexes of the experimental conditions (fixation, stationary, attentional to visual motion, no attention to visual motion). These are used in the analyses described in README_GLM_PPI.txt. The file 'factors.mat' contains a slightly different labelling of the scans in terms of the experimental 'factors', photic stimulation, motion and attention. They are specified in terms on block onsets. These are used in the analyses described in README_GLM_DCM.txt. The script corr_look is used to measure correlations (see README_PPI.txt) Will Penny, Lee Harrison and Klaas Stephan, September 2003