PNB 2XB3 Lecture Notes - Lecture 9: Calcium Imaging, Photon, Afterstep
1 May 2016
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Document Summary
The mechanism behind ltp is the entry of calcium. Eeg non-invasive, a bunch of electrodes are placed on the brain: voltage difference between electrodes are recorded, poor spatial resolution, pyramidal neurons in coronal section apical dendrites stemming towards layer 1 of the brain. If a bunch of afferent inputs fire action potentials at once (release glutamate) Glutamate receptors will bind flutamate, ion channels open, sodium enters into apical dendrites in the group ofpyramidal neurons. It"s difficult to spatially localize the activity: has been used in sleep labs, different brain states have been discovered. Dolphins been found to sleep with one hemisphere at a time. Red colour most intense, blue is least intense. Eventually brain switches categories and calls do , to . Uses the spectral content of the echoes to determine texture, velocity of the object, whether it"s alive or dead, etc.
