Exam 1 Psych Flashcards
What year did Wilhelm Wundt find the first lab dedicated to psychology and when structuralism came about?
1879
What year did behaviorism become about?
1913
What year did cognitivism come about?
1967
What are the four definitions of psychology?
the science of mind and behavior, the science of experimental epistemology, the science of knowing and experiencing, the science of things that move on their own
dualism
the universe is made of two interacting substances; physical and nonphysical matter
materialism
the universe is only made of physical matter
scientific materialism
all that exists is matter in motion
The neural assumption is made by…
scientific materialists
Who does psychology apply to?
humans, animals, plants
James Gibson
wanted to look at locomotion; ecological approach to psychology
Reflex
an automatic, stereotyped movement produced as the direct result of a stimulus
What parts make up a neuron?
dendrites, cell body (soma), axon, terminal endings
What is the resting potential of a neuron?
-70 mV
What happens when neurons are stimulated?
Na+ ions are let inside the cell, makes the inside more positive (-70, -69, -68 mV)
When enough Na+ ions get in for the potential to be reduced to -55 mV, what happens?
The ion gates to the cell membrane are flung open, allowing Na+ to rush in
What is the action potential?
40 mV
How does the cell go back to resting potential?
by pushing out K+ ions (Na+ goes out slower), then another pump takes Na+ back out and puts K+ back in
What is the threshold?
-55 mV
Synapse
the gap between two neurons (the presynaptic and post-synaptic)
_________ of presynaptic neurons relay impulses to dendrites of postsynaptic neurons
terminal endings
When do vesicles burst and what do they release?
vesicles burst at action potential; they release neurotransmitters
__________ on membrane of dendrite are like little locks to be opened and neurotransmitters are like the keys (what opens ion gates to allow Na+ inside in the first place)
receptor molecules
neurotransmitters may open a gate to let Na+ inside
excitatory
neurotransmitters may open a gate that pushes positive K+ ions out
inhibitory
temporal summation
repeated subthreshold stimuli applied over time; over time it will illicit a response
spatial summation
if you stimulate multiple places at the same time it will illicit a response
reciprocal inhibition
two opposing tendencies, and one will inhibit the other
central nervous system consists of…
brain and spinal cord