Susie Chapter 15 Flashcards

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1
Q

the study of examining bumps on the surface of the skull

A

phrenology

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2
Q

what does MRI stand for?

A

magnetic resonance imaging

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3
Q

which scanner does not require radioactive substances?

A

MRI

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4
Q

this device can help people to see the detailed white matter tracts of fibres that connect brain regions (one type of MRI)

A

DTI

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5
Q

what does DTI stand for?

A

diffusion tensor imaging

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6
Q

what does the electrophysiological technique monitor?

A

changes in membrane potential of activated neurons

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7
Q

what does brain scanner monitor?

A

changes in energy metabolism in activated neurons

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8
Q

the source of energy for moving ions in and out of the neurons is called

A

oxidation of glucose

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9
Q

because of __ __, there will be increase in cerebral blood flow in active area

A

neurovascular link

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10
Q

glucose and oxygen are delivered by…

A

cerebral circulation

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11
Q

what does PET stand for?

A

Positron emission tomography

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12
Q

this type of scanner involves injection of radioactive tracers that attached to biological compounds

A

PET

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13
Q

what particles emitted by nuclear isotope are involved in PET?

A

gamma particles

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14
Q

what is one disadvantage of PET scanner?

A

it required injection of radioactive tracers. children and others could not tolerate

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15
Q

Can PET trace blood flow?

A

yes

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16
Q

what’s the function of PET?

A

localisation of sensory, motor and cognitive brain functions

17
Q

the technique that is based on magnetic properties of oxyhaemoglobin and deoxygenated haemoglobin in blood is called…

A

fMRI

18
Q

the signal in fMRI is called… (BOLD)

A

blood-oxygenation-level-dependent

19
Q

increased neuronal activity lead to __ in deoxygenated haemoglobin and __ in magnetic signal

A

increase, decrease

20
Q

changes in blood flow is an index of __ __

A

neural activity

21
Q

what measures areas of the brain during different tasks?

A

event-related fMRI

22
Q

when working on long term memory tasks, which areas in the brain light up?

A

prefrontal cortex, precuneus

23
Q

which area controls the flow of info in the brain?

A

posterior parietal cortex (PPC)

24
Q

what’s the name of analysis package that use yellow for the most activity and blue and black for less activity?

A

statistical parametric mapping (SPM)

25
Q

when a person watches a constantly changing checkerboard pattern, which area lights up?

A

primary visual cortex

26
Q

technique that look at how different brain areas interact is called…

A

effective connectivity

27
Q

is the BOLD signal more important than action-potential output in localisation of function?

A

yes

28
Q

what’s the name of the researcher who studies relationship between neural activities and signals from scanners?

A

nikos logothetis

29
Q

how does fMRI generate image?

A

radio wave

30
Q

what brain can ultrasound detect?

A

baby’s brain

31
Q

fMRI shows __levels in the blood flowing thru the brain

A

oxygen

32
Q

abnormality in brain structures such as tumor is best seen by what device?

A

MRI scan