CS295J/Project Schedule:HG-DT/Interview JimCav EEGDataAnalysis: Difference between revisions
New page: Q: Could you please describe the experiment from which the EEG data was obtained? A: The experiment we performed is designed to study if human's color perception and shape perception are a... |
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Revision as of 22:41, 8 November 2011
Q: Could you please describe the experiment from which the EEG data was obtained? A: The experiment we performed is designed to study if human's color perception and shape perception are associated with different brain regions. During the experiment, each subject is showed several pictures of different objects consecutively, and is asked to report either the shape or the color of the object. Their brain activity is recorded through the whole process.
Q: Is there any pre-processing step before the actual analysis of the data? A: Yes. For the raw data obtained, I will first perform a quality check manually. I will look at the EEG signals and try to identify and discard signals that displays unusual instability or discontinuities. Signals with these characteristics are most likely to be noises.
Q: What tool do you use to analyze and visualize EEG data? A: I write custom Matlab code with a Matlab Toolbox called EEGLAB (link: http://sccn.ucsd.edu/eeglab/) to process the data.