Physiological Psychology is as described by Kalat (1998) as the study of the physiological, evolutionary, and developmental mechanisms of behaviour and experience. It is devoted to the study of brain functioning, how Neurons and Glia convey messages to one another and other parts of the body for it to function and work accordingly. Future studies of physiological psychology will help predict behavioural patterns in society and how brain functions can be “rewritten” through cognitive therapies .e.g. alcoholism, drug addictions.
Kalat (1998) further goes onto explain that a Biological psychologist (physiological psychologist) try to answer four types of questions about any given behaviour, how it relates to the physiology of the brain (what parts of the brain are active) and other organs, how it develops within the individual, how did the capacity for this behaviour evolve and why did this behaviour evolve.
Without the physiological understanding of how brain process work in relation to behaviour it is difficult to correctly diagnose a behaviour pattern and its cause.
Kalat (1998) describes that “having a little anxiety can be useful”, however OCD is a condition in which there is excessive anxiety.
OCD can be explained to a patient in simple physiological terms explaining the behaviour of the brain, for example:
OCD patients often have a broken mechanism (being a synapse interaction) in their brain that would usually stop a thought once you have it. In an OCD patient it does not (stop the thought) – so the thought is allowed to revolve. This seems in description that it would sound more like a broken record than OCD really does, but that isn’t what really happens.
OCD can be genetic but is most certainly physiological in nature. Without an understanding of brain functioning and how these neurons interact, how can psychologists work to alleviate the symptoms of the disorder?
References: Kalat 1998 Biological Psychology Molecular Psychiatry Molecular Psychiatry 14, 197-205 (February 2009) | doi:10.1038/sj.mp.400213