Practice question · True or false
An fMRI region 'lighting up' during a task shows that the region is necessary for the task.
Hints
- What kind of evidence is activation?
- Correlational, accompanying, not causing.
Show the answer
False
Why
False. Activation shows the region was more active during the task, which is correlation. Necessity requires a lesion, TMS or a comparable intervention. Regions light up while merely accompanying a task, and a necessary region can fail to light up if it is equally active in the control condition.
Practise Brain Imaging Techniques
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