An MRI scan shows which brain regions are active during a memory task. Why does this evidence alone not prove that one active region stores memories?
The scan shows an association with activity, but other connected regions may contribute to the task.
The scan shows the precise thoughts of neurones, but thoughts cannot be compared between participants.
The scan stimulates each region directly, but stimulation permanently changes the memories being tested.
The scan removes damaged tissue temporarily, but removed tissue cannot be returned after the investigation.
40 exam-style questions on AQA GCSE Biology 5.2 The human nervous system, covering 5.2.1 Structure and function, 5.2.2 The brain, 5.2.3 The eye, and 5.2.4 Control of body temperature. Each one has a worked solution and a mark scheme showing where the marks go.