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.
The symptoms of schizophrenia fall into three categories: positive, negative, and cognitive. Positive symptoms: âPositiveâ symptoms are psychotic behaviors not generally seen in healthy people. People with positive symptoms may âlose touchâ with some aspects of reality.