Study sets, textbooks, questions
Upgrade to remove ads
cognitive psych chapter 2
Terms in this set (49)
the study of the physiological basis of cognition
building blocks and transmission lines of the nervous system
a network that provides a complex pathway for conducting signals uninterrupted through the network
anatomist that stained 1% of brain tissue and founded the golgi stain
looked at nerve net by using the golgi stain and by using brain tissue of newborn animals
what did cajal find?
discovered the neuron doctrine
individual cells transmit signals in the nervous system and aren't continuous
what is a neuron made up of?
cell body with a nucleus, dendrites, and an axon
mechanisms to keep it alive
receive signals from other neurons
transmits signals to other neurons
you can have a lot of ___, but only one ___
ribbon that surrounds your entire brain and is made up of neuron cell bodies
where all the axons are that transmit everything
how can you tell if neurons did fire a signal?
check to see if the electrodes change
an electrical signal that gets transmitted down the axon, mechanism by which information is transmitted throughout the nervous system
what charge do neurons want to get to in order to fire?
shows how many times there is an action potential during a certain amount of time
a neuron at rest is ___ in the inside relative to the outside of the neuron
neuron communication is both __ and ___
electrical and chemical
the space between an axon of one neuron and a dendrite of another
when the synapse is reached, what are released?
a chemical released when a signal reaches an end of the axon that makes it possible for the signal to be transmitted across the synaptic gap that separates the end of an axon from the dendrite of another neuron
they depolarize the second neuron and bring it closer to its threshold
it makes it more negative and takes it away from the threshold
in order to fire an action potential, the neuron has to get to its ___
neurons that are more positive do what? and more negative?
make the action potential more likely to fire. negative make it less likely to fire
the __ of an action potential stays ___, but the rate of firing pressure ___
shape, same, increases
number of action potentials that travel down the axon per second
rate of neural firing is related to what?
the intensity of the stimuli
localization of function
specific functions are served by specific areas of the brain
layer of tissue about 3 mm thick that covers that brain and serves cognitive functions
primary receiving areas
first areas of the cerebral cortex to receive signals from each of the senses
what are the 4 primary areas?
temporal lobe, occipital lobe, parietal lobe, frontal lobe
hearing and memory
touch, spatial perception and attention
executive functions like planning, inhibiting unwanted behaviors, etc.
emotions and emotional memories
axons that connect the two hemispheres of the brain
the act of cutting the fibers so the left and right hemispheres of the brain can't communicate with each other
measures brain activity by showing which areas of the brain are activated during certain tasks
positron emission tomography; uses a low does of a radioactive tracer and then measures the brain activity according to the signals
in a PET scan, ___ signals amount to ___ levels of brain activity
both the PET and fMRI use the what technique?
compares the signals before and after a certain stimulus
functional magnetic resonance imaging
how does the fMRI work?
based on measurement of blood flow, but instead looks at magnetic properties that are seen in hemoglobin
Recommended textbook explanations
Miller and Levine Biology
Joseph S. Levine, Kenneth R. Miller
Biocalculus: Calculus for the Life Sciences
Campbell Biology (AP Edition)
Cain, Jackson, Minorsky, Reece, Urry, Wasserman
Fundamentals of Biochemistry: Life at the Molecular Level
Charlotte W. Pratt, Donald Voet, Judith G. Voet
Sets with similar terms
ALL PSYCH CHAP 3
Cognition - Chapter 2
Vocab Set 3
Cognitive Psychology 460 (Chapter 2)
Other sets by this creator
Other Quizlet sets
Endocrine System Part 3
Process 1 Exam 1
MKTG 305- Exam 1
Proknow Midterm Review
To live successfully on land, what substances must plant obtain from their environment?
If a woman with type O blood and a man with type AB blood have children, what are the children's possible genotypes?
When fruits mature, they begin to release a gas called ethene. Ethene will cause nearby fruits ripen as well (a) How could you test this effect using a ripe banana? (b) How could you design a method to reduce this effect so that you could make fruit last longer in your home?
Algae are a group of plantlike organisms. Many of these organisms produce their own food by photosynthesis. Are these organisms autotrophs or heterotrophs? Explain.