Biopsychology

Biological psychology is the scientific study of the biological bases of behavior and mental states. Because biological psychology and neuroscience both study the nervous system often using the same techniques (such as fMRI and MEG), it is difficult to say whether biological psychology is a branch of neuroscience of whether they are one and same. Many researchers use the terms interchangeably.

Biological psychology is also known as biopsychology, psychobiology, physiological psychology, behavioral neuroscience, and neuropsychology.

Research Methods
Biological Psychologists use empirical experiments to study changes in central nervous system activation in response to a stimulus. A number of techniques is used to measure activation:
 * Functional Magnetic Resonance Imaging (fMRI) measures blood oxygenation in the brain, which is indicative, though not a direct measure, of neuronal activity.
 * Electroencephalography, (EEG) measures electrical fields created by neuronal activity (sometimes called brain waves).
 * Magnetoencephalography (MEG) is the measurement of the magnetic fields produced by electrical activity in the brain