PSYB65H3 Lecture : PSYB65 LECTURE 4
Document Summary
Info comes into dendrites> exceptions, action potential to fire y y dendrites get excited to stimulus, na comes in neuron (positive charge) and becomes positive in region. Reaches threshold, ion channel, lots of na comes large potential sodium influx y schizophrenic = over excited dopamine y parkinson s disease = low (under excited) dopamine. Life-cycle of a transmitter: transmitter has to be synthesized (ex. Acetyl coa and choline: storage; once transmitters synthesized, way of storing them, has to be packaged to be utilized. If it is not packaged or not packaged properly destroyed/ broken down by chemicals. Increase or decrease rate of activity, functioning, functioning activity of system. Synthesis: increase synthesis, makes more dopamine, use drugs to increase synthesis. Package: _increase_ (in theory, not sure how it will work, no drugs to increase packaging) Package: decrease, decrease packaging to let some dopamine out.
