The Symptoms, Risk Factors and Treatments of Schizophrenia...

Introduction to Schizophrenia Schizophrenia is a severe mental disorder that â€Å"disrupts the function of multiple brain systems, resulting in impaired social and occupational functioning† (Lewis Sweet, 2009, pg. 706). Lewis (2009) suggests these functions usually consist of the confluence of disturbance in perception, attention, volition, fluency and production of language, recognition and expression of emotion, and capacity for pleasure. Schizophrenia has calamitous effects on people, and such devastating illness afflicts â€Å"0.5%-1% of the world’s population† (Lewis Sweet, 2009, pg. 706). Lewis (2009) states that people with schizophrenia are at high risk of cardiovascular disease as well as excessive nicotine, alcohol, and†¦show more content†¦The second category is characterized by negative symptoms, or the absence of normal brain function. It consists of â€Å"asociality, which is manifest by withdrawal or isolation from family and friends; avolition, impaired initiative, motivation, and decision-making; affective disturbances, which reduce capacity to recognize and express emotional states† (Lewis Sweet, 2009, pg. 706). Lewis (2009) states that other negative symptoms of schizophrenias consist of alogia, inability or poverty in the amount or content of speech; and anhedonia, lack of pleasure or of the capacity to experience it. The third category is characterized by symptoms including â€Å"a number of cognitive abnormalities such as disturbance in selective attention, working memory, executive control, episodic memory, language comprehension, and social-emotional processing† (Lewis Sweet, 2009, pg. 706). Effects schizophrenia has on spatial and visual perception Also, â€Å"a recent study reported a larger impairment of object perceptual discrimination than spatial perceptual discrimination in patients with schizophrenia† (Aleman, Haan Kahn, 2005, pg. 53). Aleman (2005) suggests perception and mental imagery may share information-processing systems in the brain; a hypothesis has been made that aShow MoreRelatedSchizophreni A Mental Illness1426 Words   |  6 PagesSchizophrenia is a mental illness that is categorized as an s sever and debilitating illness, it is known to affect at least 1% of the world’s population. (Hirvonen, J., Hietala, J. 2011). Schizophrenia is seen to be a disease with functional abnormalities of different brain structures, for example like the striatum, hippocampus, and pre frontal cortex. ( Hirvonen, J., Hietala, J. 2011). 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