PSY 351 Study Guide - Dentate Gyrus, Semantic Memory, Electroconvulsive Therapy

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Chapter 12: what is classical conditioning? (be sure to know cs, cr, ucs, and ucr. ) The ability to perform a particular behavior when a stimulus is present: unconditioned stimulus automatically elicits an unconditioned response, conditioned stimulus initially elicits no response, conditioned response is learned with repeated reinforcement with reward d. When there is a weak electrical stimulation in the presynaptic neurons, there will be a release of glutamate from the axon terminal. However, since it is only a weak stimulus, only the ampa receptor is activated. The nmda receptor is only slightly depolarized due to mg2+ ion blocking the opening. As such, the epsp is solely by the. With large enough stimulus, the ampa is able to expel the mg2+ from the nmda receptor, that allow calcium ion to enter. Calcium acts as a second messenger, which would in turn activate the cam and the camkll.