Lastly, with respect to biological theory-based treatments, scientific research is vital. A study conducted in 2010 states that the finding of "various structural and chemical abnormalities in the brain through neuroimaging" has been the foundation in depression research in the last year. This study further states that the research combines various brain areas to arise specific symptoms, and that the new data could contribute to further understanding and treating depression. Specific treatments are not given as part of this study, but "biological" treatments will usually include medication, such as anti-depressants. [20: Papageorgiou, G. (2010). Biological theory of depression in the light of new evidence. Retrieved April 11, 2011, from http://www.annals-general-psychiatry.com/content/9/S1/S47. ]
This paper has discussed various theories of depression and has expanded upon treatments that take into account these theories. Some treatments have been proven effective, and others have been illustrated simply as examples or as evidence of much needed field research. Depression has been shown to be a complex illness explained by various intelligent minds in different ways, yet in order to treat this disorder, one must take into account all this knowledge, and hope that advances in scientific research, such as that illustrated above, will provide for better treatments and, finally, more effective relief from depressive symptoms.