Ways of studying the brain Flashcards

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1
Q

what are the different ways of studying the brain

A

fMRI
EEG
ERP
post mortem examinations

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2
Q

what is temporal resolution

A

refers to the precision of a measurement with respect to time

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3
Q

what is spatial resolution

A

accuracy of the image

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4
Q

what is fMRIs

A

measures changed in brain activity while a person performs a task
- measures changes in the blood flow in certain areas of the brain

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5
Q

strengths of fMRIs

A

non invasive and doesn’t expose brain to harmful radiation
objective and reliable due to scientific methods

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6
Q

limitations of fMRIs

A

measures blood flow so it’s not a direct measure of neural activity

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7
Q

what are EEGs

A
  • measures electrical activity in the brain
    — electrical signs from electrodes are graphed over a period of time
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8
Q

strengths of EEGs

A
  • provides recording of brain activity in real time rather than an immahe
  • used in clinical diagnosis
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9
Q

limitations of EEGs

A

only detects activity in surface of brain so doesn’t reveal what’s going on in deeper regions

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10
Q

what is an ERP

A

small voltage change in the brain triggered by certain events
- researcher looks for activity related to the stimulus

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11
Q

strengths of ERPs

A

provide a continuous measure of processing in a response to a stimulus
measures processing of stimuli even in a amende to behavioural response

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12
Q

limitations of ERPs

A

requires a larger number of trials to gain meaningful data as they are small and difficult to pick out

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13
Q

what are post mortem examinations

A

researchers examine a dead person’s brain to look for abnormalities that might explain behaviour when alive

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14
Q

strengths of post mortem examinations

A

allows for a detailed examination of the brain as it enables them to examine deeper regions of the brain

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15
Q

limitations of post mortem examinations

A

confounding areas can affect the research like length of time between death admins examination

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