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Lecture 5

PSY 201 Lecture Notes - Lecture 5: Sympathetic Nervous System, Peripheral Nervous System, Occipital Lobe


Department
Psychology
Course Code
PSY 201
Professor
Dasa Zeithamova Demircan
Lecture
5

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Clicker Questions
An electric signal that is conducted along the length of a neuron’s axon to the
synapse is called: an action potential
The chemicals that transmit information across the synapse to a receiving neuron
are called: neurotransmitter
Amphetamine stimulates the release of norepinephrine and dopamine and
prevents their re-uptake. This acts as an: agonist
When you feel threatened, your sympathetic nervous system prepares you to
either fight or run
A girl sits puts her hand on the fire. Her sensory allows her to feel the heat.
While her motor neurons allow her to move her hands away.
Which part of the hindbrain coordinates fine motor skills? cerebellum
A cat’s reticular formation was severed and the cat fell into a permanent coma.
The occipital lobe is to vision as the parietal lobe is to touch
Key neurotransmitters
○ Glutamate
Major excitatory neurotransmitter
Too much: epilepsy, cell death
○ GABA
Major inhibitory neurotransmitter
Too much: sedation
Too little: anxiety, involuntary movement
Dopamine
Reward, voluntary movement
Too little: parkinson’s
Too much: schizophrenia
Epinephrine/Norepinephrine
Arousal, alertness
Energy (fight or flight)
○ Serotonin
Mood, emotion, sleep, aggression
○ Endorphins
Pain reduction
Endogenous morphine
Central Nervous System
Spinal Cord
Interface between central and peripheral nervous system
Controls simple reflexes and repetitive movement
● Brain
○ Brainstem
The Brainstem supports life sustaining bodily functions
Damage to the medulla who cause damage to all of the body and would
have to help for basic bodily functions
Cerebellum
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