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.
1 Residual schizophrenia -- a person is no longer experiencing delusions or hallucinations, but has no motivation or interest in life. 2  Schizoaffective disorder --a person has symptoms of both schizophrenia and a major mood disorder such as depression. medical or mental health professional may use the following terms when discussing the symptoms of schizophrenia. Positive symptoms are disturbances that are âaddedâ to the personâs personality. 1  Delusions -- false ideas--individuals may believe that someone is spying on him or her, or that they are someone famous.