Bio Basis And Behavior Flashcards
Action potential
A neural impulse ; a brief electrical charge that travels down an axon
Threshold
The level of simulation required to trigger a neural impulse
Refractory period
In neural processing, a brief pause occurs after a neuron fires
Acetylcholine (2) what does it work wi6
Enables muscle action
Learning & memory
Works with Glumate
When a person has Alzemiers disease, what neurotransmitting neurons detriorate?
Acetylcholine (ACh) producing neurons
Dopamine
Influence movement , learning, attention, & emotion
What happens if dopamine is over/ under supplied?
Oversupply -linked to schizophrenia
Undersupply- linked to temors &decreased mobility in Parkinson disease
Serotonin
Affects mood, hunger sleep &arousal
What is linked to undersupplied levels of serotonin
Depression
Norepinephrine/noreadrillin
Helps control alertness & arousal
Uppersupply of norepinephrine
Undersupply can depress mood.
Gaba
A major inhibitory neurotransmitter
Undersupply of gaba
Undersupply linked to seizures, tremors, and insomnia
Glutamate
A major excitatory
neurotransmitter;
involved in memory
Oversupply of glutamate
Oversupply can overstimulale the brain producing migraines or sezures (which is
why some people avoid MSG, moresodium
glutamate in food)
Endorphins
Neurotransmitters that
influence the perception of pain or pleasure
Oversupply of endorphins
Oversupply with opiate drues can suppress the body’s natural endorphi supply
Leptin
Helps regulate Appetite (makes you feel full)
Ghrelin
Makes you feel hungry
Ghrelin
Makes you feel hungry
Substance P
found in CNS & immune cells
(Helps regulate pain / sensations & helps fight certain diseases)
Melatonin
Makes you feel sleepy
Oxytocin
Is associated with physical contact & relationship building
What do hormones do?
Regulate physiology
