There are over 2,900 species of snakes ranging as far northward as the Arctic Circle in Scandinavia and southward through Australia. Snakes can be found on every continent except Antarctica, in the sea, and as high as 16,000 feet (4,900 m) in the Himalayan Mountains of Asia.
The negative symptoms of schizophrenia are passive in nature. They affect the personâs thinking, emotion and behavior and can be the most devastating of all the symptoms. Three of the most common are flat affect, alogia, and avolition.
Schizoaffective disorder: People with this illness have symptoms of both schizophrenia and a mood disorder, such as depression or bipolar disorder.Schizophreniform disorder: People with this illness have symptoms of schizophrenia, but the symptoms last between one and six months.Brief psychotic disorder: People with this illness have sudden, short periods of psychotic behavior, often in response to a very stressful event, such as a death in the family.ont Size. A. A. A. Psychotic disorders such as schizophrenia are a group of serious illnesses that affect the mind. These illnesses alter a person's ability to think clearly, make good judgments, respond emotionally, communicate effectively, understand reality, and behave appropriately.