Computer Vision News - December 2021
27 Using Jupyter Notebooks • Object images (IntactObject) • Scrambled version of the object images (ScrambledObject) • Face images (IntaceFace) • Scrambled version of the face images (ScrambledFace) • Scene Images (IntaceScene) • Scrambled version of the scene images (ScrambledFace) Example images: By taking contrast between intact and scrambled images of a particular domain (e.g., IntactObject vs. ScrambledObject), we can get a brain region related to the visual processing of the domain (e.g., lateral occipital complex for object vision). Here is a list of typical brain regions identified with the experiment. • LOC (lateral occipital complex; related to object recognition; Malach et al., 1995) • FFA (fusiform face area; related to face perception; Kanwisher et al., 1997) • PPA (parahippocampal place area; related to scene perception; Epstein & Kanwisher, 1998) From: Prosopagnosia | Fusiform Face Area Functions and Impact https://prosopagnosiabytmayo. wordpress.com/ An experiment that identifies a brain region (region-of-interest; ROI) based on the function of the brain (e.g., how voxels are activated by certain stimuli) is called a functional localizer experiment . Experiment information • TR: 3 sec • 100 volumes/run (300 sec/run) • 8 runs
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