Effort, anhedonia, and function in schizophrenia: Reduced effort allocation predicts amotivation and functional impairment.
نویسندگان
چکیده
منابع مشابه
Effort, anhedonia, and function in schizophrenia: reduced effort allocation predicts amotivation and functional impairment.
One of the most debilitating aspects of schizophrenia is an apparent interest in or ability to exert effort for rewards. Such "negative symptoms" may prevent individuals from obtaining potentially beneficial outcomes in educational, occupational, or social domains. In animal models, dopamine abnormalities decrease willingness to work for rewards, implicating dopamine (DA) function as a candidat...
متن کاملImpaired effort allocation in patients with schizophrenia.
A hallmark of negative symptoms in schizophrenia is reduced motivation and goal directed behavior. While preclinical models suggest that blunted striatal dopamine levels can produce such reductions, this mechanism is inconsistent with evidence for enhanced striatal dopamine levels in schizophrenia. In seeking to reconcile this discrepancy, one possibility is that negative symptoms reflect a fai...
متن کاملInefficient effort allocation and negative symptoms in individuals with schizophrenia.
Negative symptoms like avolition and anhedonia are thought to involve difficulties with reward processing and motivation. The current study aimed to replicate and extend prior findings that individuals with schizophrenia display reduced willingness to expend effort for rewards and that such reduced effort is associated with negative symptoms, poor functioning, and cognitive impairment. The pres...
متن کاملAnhedonia and effort mobilization in dysphoria: reduced cardiovascular response to reward and punishment.
Instigated by evidence for reduced responsiveness to reward in depression, the present two studies addressed the question if such anhedonic behavior would also become evident in reduced mobilization of mental effort in terms of cardiovascular reactivity. Undergraduates completed the Center for Epidemiologic Studies-Depression Scale (CES-D) and worked on mental tasks, expecting either no consequ...
متن کاملMotivation and effort in individuals with social anhedonia.
It has been proposed that anhedonia may, in part, reflect difficulties in reward processing and effortful decision making. The current study aimed to replicate previous findings of effortful decision making deficits associated with elevated anhedonia and expand upon these findings by investigating whether these decision making deficits are specific to elevated social anhedonia or are also assoc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Abnormal Psychology
سال: 2014
ISSN: 1939-1846,0021-843X
DOI: 10.1037/a0036299