16 CHAPTER 1 Figure 3 functional Magnetic Resonance Imaging (fMRI) A. an overview of the different types of images at the individual subject level. A high-resolution structural image (1st row) is used to localize the activity derived from the functional images (2nd-3rd rows). About every 1-3 seconds, the fMRI scanner obtains a functional image of the whole brain. The two rows in the figure are functional images from different timepoints. The 4th row is the preprocessed mean of all the functional images that are acquired during the task. The overlayed activation map shows which brain areas were more active when pressing a left compared to a right foot button (family wise error corrected, p < 0.05, data from a healthy volunteer in the study described in chapter 4). B. the MRI scanner used to obtain the images. C. the results at the group level in standard space: where the group as a whole had more activity when pressing the left compared to the right foot button (threshold-free cluster enhancement based permutation testing, familywise error corrected, p < 0.05, reproduced from chapter 4, figure 3).2
RkJQdWJsaXNoZXIy MjY0ODMw