HTHSCI 1G03 Lecture Notes - Lecture 6: Lesion
15 Jan 2018
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Take metal electrode, insert into any part of the brain. Action potentials can be recorded by the electrode. Eeg, fmri, pet, meg fmri: measures blood flow in the brain (blood-oxygen-level dependent. Not good at measuring time; can lose information. As good as we can get for non-invasive techniques. Disrupting the activity of a brain region to see what happens. Temporarily by using tools (e. g. tms --> blocks part of the brain) Knock out input area; don"t know function in output area. Not able to locate where exactly the function occurs. Instead recording activity of the brain from stimuli, can stimulate brain and ask subject where they feel sensation. We can create computer models that simulate how a nervous system might work. If predictions are correct, nervous system might be following a similar rule. Decoder: makes sense of the information generated by the encoder (using math) If decoder produces identical info to nervous system, maybe the nervous system resembles the model.
