Several models can explain the nature of abnormal behavior. Using these models allows scientists to more accurately determine the cause of the patient’s abnormal behavior. However, not all models can provide a complete explanation for scientists, which often leads to difficulties. Therefore, the biological model allows scientists to determine the nature of a psychological disorder by studying the biological processes in the body (Beidel, et al., 2017). Thus, a person with possible symptoms of mental disorders, indeed, might first undergo a physical examination of the body. For instance, such procedures as MRI can reveal differences in the functioning of the brain, which later helps to make a psychological diagnosis.
To determine the nature of such abnormalities as autism and schizophrenia, some scientists suggest the theory of viral infection. Scientists conducted animal studies, which allowed them to find a link between a viral infection and the occurrence of psychological disorders (Beidel, et al., 2017). In addition, mental illnesses are often accompanied by physical ailments. For example, symptoms such as dizziness, nausea, digestive problems, and tremors, often accompany a person with anxiety. Also, people suffering from depression experience chronic fatigue, as well as drowsiness and insomnia simultaneously. Loss of appetite and migraines also accompany many psychological abnormalities, such as eating disorders. The overlap between physical and mental health can be traced in several aspects. As mentioned earlier, a viral infection can theoretically lead to further psychological disorders. In addition, the link between physical and mental health can manifest itself in the symptoms experienced by the patient. In that manner, people suffering from panic attacks often experience breathing problems, tinnitus, digestive problems, etc.
Reference
Beidel, D. C., Bulik, C. M., & Stanley, M. A. (2017). Abnormal psychology: A scientist-practitioner approach. (4th ed.). Pearson Education.