Biological psychology is mainly related to the different relationships that exist between psychological processes and the corresponding physiological events.
Biological psychology is especially focused on the function that the brain as well as the nervous system have in the different activities. These activities could be thinking, learning, or feeling. Biological psychology has also studied the physical basis regarding how the nervous system receives internal as well as external stimuli.
It related to the psychological state of being identified with a particular job and is degree to which a job is central to a personal identity. And from an organization perspective is the key to unlocking the employee's motivation and productivity.