psych of perception chapter 2 Flashcards

1
Q

recording electrode

A

inside the fiber

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2
Q

refernce electrode

A

outside the fiber

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3
Q

resting potential

A

-70mV

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4
Q

action potential

A

show propagated response
remain the same size regardless if stimulus intensity increases

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5
Q

ions - carry an electrical charge

A

Na+ (sodiom ions) positive charge
Cl- (chlorine ions) negative charge
K+ (potassium ions) positive charge

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6
Q

what makes neuron to depolorize?

A

sodium ions flow into the axon

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7
Q

what makes neuron repolorize?

A

potassium flows out of the axon

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8
Q

excitory transmitters

A

cause depolarization
neuron becomes more positive and the likelihood for action potential increases

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9
Q

inhibitory transmitters

A

cause hyperpolarization
neuron becomes more negative and the likelihood for an action potential to occur decreases

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10
Q

modularity

A

the idea that specific brain areas are specialized to respond specific types of stimuli or functions
each specific area is called a module

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11
Q

distributed representation

A

the idea that the brain represents information in patterns distributed across thecortex, not just brain area
multiple modules

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12
Q

structural connectivity

A

‘road map’ of fibers connecting different areas of the brain

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13
Q

fMRI

A

functional magnetic resonance
measures blood flow
brain activity takes up oxygen, which binds to hemaglobin and makes it more magnetic

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