出典:Wikipedia
出典:『Wikipedia』 (2011/07/29 01:28 UTC 版)
Avolition is a psychological state characterized by general lack of drive, or motivation to pursue meaningful goals. A person may show little participation in work or have little interest in socializing. They may sit still for long periods of time. It is commonly seen in patients with schizophrenia, and is one of the four main "negative" symptoms of that disorder. Other characteristics are flat affect, alogia, anhedonia, and asociality. It is sometimes mistaken for simple disinterest or anhedonia but is distinct. People with avolition may want to complete certain tasks but lack the motivation to complete them.