biopsychology Flashcards

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1
Q

What are the 4 ways of studying the brain?

A
  • FMRI
    -EEG
  • Post- Mortem
  • ERP
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2
Q

What is an ERP?

A
  • Stimulus
  • uses EEG data to look at specific response to stimuli.
  • they look at types of brainwaves that are triggered by particular events. Cognititve processes.
  • for example if someone is pinched the ERP will look at the specific response in the brain
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3
Q

What is a Post-Mortem?

A
  • the analysis of a persons brain following their death.
  • individuals that are studied usually had brain defects or behavioural issues when they were alive. (e.g HM, who lost the ability to form memories).
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4
Q

What is an FMRI?

A
  • detects changes in blood oxygenation.
  • produces three-dimensional images showing parts of the brain that are involved in a particular mental processes.
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5
Q

What is an EEG?

A
  • measures electrical activity within the brain via electrodes. Using a skull cap.
  • a scan recording that shows overall account of brain activity and looks at brain waves.
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6
Q

What is a strength of FMRI?

A
  • high spatial resolution
  • usually risk free
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7
Q

What is a weakness of FMRI?

A
  • it is expensive
  • poor temporal resolution
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8
Q

What is a strength of an EEG?

A
  • high temporal resolution
  • aids diagnosis
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9
Q

What is a weakness of an EGG?

A
  • difficult to determine the exact source of neural activity
  • cannot distinguish between activities originating on different locations of the brain.
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10
Q

What is a strength of a post-mortem?

A
  • provided foundation for early understanding of key processes in the brain (Broca and Wernicke)
  • helped improve medical knowledge and prompted research
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11
Q

What is a weakness of a post-mortem?

A
  • issues surrounding causation(damage may not be linked to defects under review)
  • Ethical issues (ppts cannot give consent) e.g HM
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12
Q

What is a strength of an ERP?

A
  • high temporal resolution
  • precise role of cognitive functioning
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13
Q

What is a weakness of an ERP?

A
  • lack of standardisation( makes it difficult to understand findings)
  • hard to eliminate background noise and extraneous materials (may not establish pure data)
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14
Q

What is a similarity of an ERP and a FMRI?

A
  • they both use tasks to examine and trigger the brain
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