PSYCH 100 Lecture Notes - Lecture 2: Grey Matter, Meta-Analysis, Frontal Lobe
Document Summary
Central nervous system (cns): the brain and spinal cord. Peripheral nervous system: nerves that connect the cns to the rest of the body. Two subdivisions of peripheral ns: somatic ns: nerves under conscious control (motor movements, sense receptors, autonomic ns: controls involuntary actions (heart, glands, digestion) Two subdivisions of the autonomic ns: sympathetic ns: activates internal organs during times of stress and arousal (activates the fight or flight response, parasympathetic ns: reverses the affects of the sympathetic ns (returns body back to normal) Neuron: a specialized cell that conducts impulses through the nervous system and contains three major parts . ~terminal button: nob at the end of axon. Synapse (space between neurons : structures at synapse: Imbalances of acetylcholine are linked to alzheimer"s disease. Imbalances of serotonin are linked to depression, anxiety and eating disorders. Imbalances of dopamine are linked to schizophrenia (too much dopamine) and. Parkinson"s disease( don"t have enough, different type of dopamine than schizo)
