Biological Bases of Behavior Flashcards
Space or gap between the schwann cells
Node of Ranvier
Action potential
information is transmitted along the axon of a neuron
reduction in the absolute value of membrane potential. if this reaches the threshold, an action potential will be created and the neuron will fire
depolarization
Saltatory conduction
propagation of the chemical signal down the neuron from one node to the next
repolarization and hyper polarization
returns the membrane potential from positive to negative
Neurotransmitters
chemical messengers manufactured by a neuron. Best known: Endorphins.
dopamine
involved in movement and thought process.
what is dopamine associated with
parkinson’s disease and schizophrenia
Serotonin functions
Emotional state and sleep
Serotonin associated with
Depression
Anxiety
OCD
Norepinephrine functions
arousal, learning and memory
acetylcholine is linked to
Alzheimers disease
psychoactive drug has an
inhibitory or excitatory effect on the nervous system
Agonists drugs
mimic the effect of the neurotransmitter
Antagonists are drugs that
inhibit the effect of the neurotransmitter
an antidepressant drug that works as an agonist of serotonin
prozac
spinal cord deals with
involuntary or reflex actions
the brain is required for
voluntary movements