Question

If stimulating an area of the brain does not cause a behavior but disabling it with transcranial magnetic stimulation (tms) prevents the behavior, then that area is _______ for that behavior. necessary and sufficient necessary but not sufficient sufficient but not necessary correlated with, but neither necessary nor sufficient

Answer 1

The correct answer is: Necessary but not sufficient for that behavior.

If by disabling the mentioned area, the behavior is prevented, then it means that this area is necessary to activate this behavior. Otherwise, the person would carry out the behavior regardless.

However, if stimulating the area does not activate the behavior, it means that another or others area(s) is/are necessary to activate it. A combination of brain areas being stimulated simultaneously should activate the behavior. Therefore this one area in particular (mentioned on the question) is not sufficient.