Background: During of adolescence, transformations in neural circuitry of brain's reward system can lead to vulnerability which paves the way for involvement in criminal and addictive behaviors. Some of mental disorders e.g., conduct disorder because of their special nature are more comorbid with substance use disorders. Objectives: This study aimed to study the role of anhedonia and low arous...

Social anhedonia and introversion, two closely related constructs associated with decreased positive emotions and decreased sociability, are common in schizophrenia-spectrum personality disorders. In light of a myriad of mixed findings regarding positive emotionality in anhedonia, there has been a call to reconceptualize "anhedonia." To clarify the nature of social anhedonia, we used confirmato...

Anhedonia, the lowered ability to experience pleasure, is one of the non-motor symptoms in Parkinson’s disease. Recently, the distinction between consummatory and anticipatory anhedonia has been proposed and anhedonia, notably in PD, could constitute a stable characteristic (anhedonia-trait) or secondary symptom (anhedonia-state). Several studies, using healthy control groups, reported high sta...

This study has sought to explore whether there are at least two subtypes of anhedonia in schizophrenia: one closely linked with depression and another that occurs in the absence of depression which is related to a general paucity of internal experience. Participants were 163 adults with schizophrenia who completed assessments of depression, anhedonia, executive functioning, positive and negativ...

BACKGROUND Recent studies suggest that anhedonia, an inability to experience pleasure, can be measured as an enduring trait in non-clinical samples. In order to examine trait anhedonia in a non-clinical sample, we examined the properties of a range of widely used questionnaires capturing anhedonia. METHODS 887 young adults were recruited from colleges. All of them were administered a set of c...

M.S. Ritsner (ed.), Anhedonia: A Comprehensive Handbook Volume II: Neuropsychiatric And Physical Disorders, DOI 10.1007/978-94-017-8610-2_2, © Springer Science+Business Media Dordrecht 2014 Abstract The main objective of this chapter was to carry out a selective review of the main measuring instruments used for the assessment of anhedonia and hedonic capacity. First, we briefl y discuss the his...

Anhedonia is the inability to experience pleasure from normally pleasant stimuli. Although anhedonia is a prominent feature of many psychiatric disorders, trait anhedonia is also observed dimensionally in healthy individuals. Currently, the neurobiological basis of anhedonia is poorly understood because it has been mainly investigated in patients with psychiatric disorders. Thus, previous studi...

Obsessive-compulsive disorder (OCD) has been linked to reward dysfunctions, highlighting a possible role of anhedonia in OCD. Surprisingly, anhedonia in OCD has never been evaluated. Moreover, although nicotine typically has anti-anhedonic effects, anecdotal reports suggest low prevalence rates of smoking in OCD. To address these two phenomena, 113 individuals with OCD completed a battery of qu...