Which of the following methods gives results by recording the neural activity of thebrain instead of recording the metabolic and synaptic activity?A) AutoradiographyB) Fos proteinC) Positron emission imaging (PET)D) Magnetoencephalography (MEG)E) fMRI (functional MRI)

The method that gives results by recording the neural activity of the brain instead of recording the metabolic and synaptic activity is D) Magnetoencephalography (MEG).

Here's a step-by-step explanation:

A) Autoradiography: This method involves the use of radioactive substances in the study of physiological processes. It does not directly record neural activity.

B) Fos protein: This is a marker of neuronal activation, meaning it shows where neurons have been active, but it does not directly record neural activity.

C) Positron emission imaging (PET): This method uses a radioactive substance and a special camera to measure metabolic processes in the body. It does not directly record neural activity.

D) Magnetoencephalography (MEG): This method directly measures the magnetic fields produced by electrical activity in the brain. Therefore, it directly records neural activity.

E) fMRI (functional MRI): This method measures brain activity by detecting changes associated with blood flow. This technique relies on the fact that cerebral blood flow and neuronal activation are coupled. It does not directly record neural activity.