PSYC 330 Lecture Notes - Lecture 5: Substantia Nigra, Basal Ganglia, Somatic Nervous System
2 Feb 2017
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Document Summary
1 central nervous system (brain + spinal cord) 3 autonomic nervous system (regulates nonconscious, automatic functions) excitation, most common neurotransmitter is noripinephrine/noradrenaline primarily cholinergenic. Sympathetic: fight/flight, discharge associated with response to stress or. Forebrain drinking, body temp, aggression, sexual behavior, arousal. Besides cortex, most important for interpreting complex behavior. Ventral tegmental area of the midbain region (major producer of dopamine) -> projects to the nucleus accumbens -> then to the frontal cortex. Meoslimbic dopaminergic pathway (mdp): major dopamine pathway that begins in the. Pleasure center : stimuli that arouse (i. e. attention-getters, alertness) activate mdp. Nigro-striatal pathway: substantia nigra is a major producer of dopamine, transported to. Parkinson"s: dopamine neurons from this pathway are killed, 80% killed before. Frontal: planning of movements, recent memory, some aspects of emotions. Area of the brain composed mostly of basal ganglia; critical to modulation and planning of movement. symptoms appear.
