The study of science , medicine and philosophy gave birth to the discipline of psychology . The contribution of early biological studies to psychology was noticed when people who suffered from head trauma were subject to investigation . Scientist discovered certain emotional response that was expressed by the subjects who could not recall the memory that caused the response . Further experiments led to the conclusion that psychology is a product of biological studies . And now ,there is a branch of psychology known as Biological psychology . The contribution of medicine in the development of psychology can be dated way back 460 BC . Hippocrates , known as the “Father of Modern Medicine , studied the disease known today as epilepsy . He stated that the disease is a cause of brain malfunction . He has also written several books about the brain and its function .In the study of psychology , the term dualism was defined as the interaction between the mind and the body . One of the most famous personalities that were related to dualism was Rene Descartes . Rene Descartes concept of dualism identifies that the mind and the body are two different things that interact with one another . He claims that the mind is an immaterial substance and the body is material . For several years now , the brain had been a subject of study . The study of the function and structures of the brain which relates it to psychological processes is termed as neurological psychology . The study of neurological psychology dates way back ancient times but was not…