Psych Flashcards
Eugenics
Survival of the fittest- cultural cleansing
Somatic vs autonomic
S-voluntary
A- automatic
Central nervous system
Peripheral nervous system
Brain and spine
Neurons
Sympathetic
Parasympathetic
Fight or flight, jumping out of plane
Calming, parachute
Neurons
Cells in the brain and nervous system
Glial cells
Protect and feed the neurons
4 types of neurons
Sensory neurons, motor neurons, interneurons, mirror neurons
Threshold
Minimum intensity needed to fire a stimulus -55 mv
Depolarization
Building up to -55
Refractory period
And neurons inability to fire
Acetylcholine
Motor movement and memory, too much leads to muscle spasms, two little leads to paralysis, Alzheimer’s disease
Dopamine
Related to motor movement, reward, and alertness, too much equals schizophrenia, too little equals Parkinson’s disease
Serotonin
Related to mood appetite and sleep regulation, too little equals depression, linked to sudden infant death syndrome
Norepinephrine
Related to alertness and arousal, fighter flight response, strongly linked to PTSD
Gaba
Major inhibitory, related to sleep and movement, lack of GABA equals insomnia and seizures
Glutamate
Major excitatory, related to memory, too much equals migraines and seizures
Substance p
Vital roles in pain inflammation wound healing, and angiogenesis. Involved in stress.
Endorphins
Bodies, natural, morphine or painkillers
Reuptake
The reabsorption of a neurotransmitter into the sending neuron
Agonist
Makes neurons fire
Pretender
Antagonist
Stops neurons from firing, blocks and neurons
Reuptake inhibitor
Stops neurotransmitters from being reabsorbed
Prolong their effects
Hormones vs neurotransmitters
Hormones are the real thing, goes through the bloodstream, slower, and more impactful
Neurotransmitters are a quick message, instant, nervous system
Leptin
Hunger suppressant
Ghrelin
Hunger simulation
Oxytocin
Labor, lactation, love
