OBJECTIVES Selective serotonin reuptake inhibitor (SSRI)-induced apathy is characterized by a lack of motivation that is not a result of sedation or symptoms of depression. This report describes two pediatric cases of SSRI-induced apathy, one of which is the first reported case in a child with a non-OCD (obsessive compulsive disorder) anxiety disorder. METHODS The sample included 43 participa...

INTRODUCTION Apathy is a behavioural syndrome due to dysfunction of the process that gives rise to actions induced by external or personal stimuli. Apathy is very common in Parkinson's disease, with a prevalence that ranges between 16-48%. Three subtypes of apathy are currently accepted, which are anatomically and functionally different: cognitive, emotional and due to a deficit in auto-activat...

This study investigated the associations among psychologically controlling parenting, relational aggression, friendship quality, and loneliness during adolescence. A model was proposed in which relational aggression plays an intervening role in the relations between both parental psychological control and friendship outcomes. In a sample comprised of middle adolescents and their parents, proces...

OBJECTIVE To identify distinct behavioral phenotypes of behavioral-variant frontotemporal dementia (bvFTD) and to elucidate differences in functional, neuroimaging, and progression to residential care placement. METHODS Eighty-eight patients with bvFTD were included in a cluster analysis applying levels of disinhibition and apathy (Cambridge Behavioural Inventory-Revised) to identify phenotyp...

Impairments in executive functioning are commonly found in Parkinson's disease (PD); however, the research into risky decision making has been mixed. The present study sought to investigate three potential hypotheses: difficulty learning the task probabilities, levodopa equivalent dose (LED), and the presence of apathy. Twenty-four individuals with idiopathic PD and 13 healthy controls complete...

Parkinson's disease (PD) is associated with various nonmotor symptoms including neuropsychiatric and cognitive dysfunction. We examined the relation between apathy, anxiety, side of onset of motor symptoms, and cognition in PD. We hypothesized that PD patients would show different neuropsychiatric and neurocognitive profiles depending on the side of onset. 22 nondemented PD patients (11 right-s...

Background: childhood aggression, particularly in preschoolers, is one of the most common behavioral problems throughout the world. Therefore, it is important to identify the predictors of this problem. This study was conducted to determine the predictors of physical and verbal aggression in preschoolers. Methods: This descriptive cross-sectional study was conducted on preschoolers in Rasht ...

This article presents evidence for the reliability and construct validity of the Apathy Evaluation Scale (AES). Conceptually, apathy is defined as lack of motivation not attributable to diminished level of consciousness, cognitive impairment, or emotional distress. Operationally, the AES treats apathy as a psychological dimension defined by simultaneous deficits in the overt behavioral, cogniti...