PSYC 3265 Lecture Notes - Lecture 2: Parasympathetic Nervous System, Sympathetic Nervous System, Autonomic Nervous System
Document Summary
****quiz next week covers lecture 1 and 2. Sympathetic nervous system (controls organs in times of stress) Parasympathetic nervous system (controls organs when body at rest) Specialized cells of brain (neurons and gilal cells support system for neurons) Axon: transmit information out of neuron: terminal buttons, neurotransmitters. Electrical component: action potential, -70 mv -55 mv +40 mv, -70: where we start, -55: huge shift, where things start to change, +40: where you start getting action potential. Chemical component: occurs at the synapse between two neurons, often refers to neurotransmitter, allows us to have a single neuron communicate with large number of neurons, flow of information. Electrical charge important for communication between cells, we rely on this charge of our selves. Acetylcholine (ach: improves memory, plays a role in long term potentiation, strengthens synaptic connection with long term. Glutamate: alteration of synapses and creating new memories. Dopamine: memory processing: involved in rewards system, any memory involved with rewards revolves around dopamine.
