PSY101 - Quizlet 19

Terms	Definitions
deficit-lesion	Using the _____ method, we take out or damage a part of the brain and then see what goes wrong.
brain stimulation	One way we can figure out what a part of the brain does is through ____ ____, where we basically poke the part of the brain we're interested in with an electrode and see what happens.
somatosensory cortex	If I were to stimulate your ____ ____, this would cause you to have the perception of being touched on part of your body.
motor cortex	If I were to stimulate your ____ ____, this would cause part of your body to move.
homunculus	A model of the body that is distorted to show the relative number of nerves serving each body part.
receptor	Chemical messengers are created in one cell, released from that cell, and then eventually bind to a ____ on another cell.
hormone	A chemical messenger that is carried to its target site by the bloodstream.
hormones	Compared to electrical signals, ____ are relatively slow, since they have to travel through the bloodstream to get to their targets.
neuron	A cell of the nervous system that conducts electrical impulses and releases neurotransmitters.
soma	The cell body of a neuron.
soma	The ____ calculates incoming signals and determines whether or not the neuron should "fire."
dendrites	Branch-like extensions of the neuron.
dendrites	The ____ receive incoming messages from other neurons.
axon	The long extension of the neuron that transmits the electrical signal from the soma to the terminal buttons.

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