AI Flashcards DeBrito Psychopathy
(37 cards)
What is the most widely accepted conceptualization of psychopathy in the scientific and clinical community?
It is based on the construct operationalized by the Hare Psychopathy Checklist–Revised (PCL-R).
What are the two correlated dimensions of psychopathy according to the PCL-R?
Interpersonal and affective features (Factor 1) and a chronic antisocial lifestyle (Factor 2).
What are the four facets of psychopathy proposed by Hare (2003)?
Interpersonal style (Facet 1), affective experience (Facet 2), lifestyle (Facet 3), and antisocial manifestations (Facet 4).
What are some traits associated with the interpersonal facet (Facet 1) of psychopathy?
Grandiose sense of self-worth, pathological lying, and being conning/manipulative.
What are some traits associated with the affective facet (Facet 2) of psychopathy?
Lack of remorse or guilt, shallow affect, callous lack of empathy, and failure to accept responsibility for one’s own actions.
What are some traits associated with the lifestyle facet (Facet 3) of psychopathy?
Need for stimulation/proneness to boredom, parasitic lifestyle, lack of realistic long-term goals, impulsivity, and irresponsibility.
What are some traits associated with the antisocial facet (Facet 4) of psychopathy?
Poor behavioural controls, early behavioural problems, juvenile delinquency, revocation of conditional release, and criminal versatility.
What are some additional behaviours common in people with psychopathy?
Promiscuous sexual behaviour and many short-term marital relationships.
What is a key point to remember when scoring psychopathic traits?
The presence of these traits cannot be scored without reference to the formal criteria contained in the published manuals.
What is the role of gene-environment correlation in the development of psychopathy?
Environmental risk factors might in part reflect genetic predispositions. For example, parents with genetic variants that predispose to psychopathic behavior might engage in harmful parenting practices and pass on some of these genetic variants to their offspring.
What has research on twins shown about the relationship between parenting and psychopathic traits?
Harsh and negative parenting and higher levels of psychopathic traits in children may reflect a genetic vulnerability within biological families. However, warm parenting can buffer the effects of heritable risk for psychopathic traits.
What are some neurocognitive disruptions associated with psychopathy?
Deficits in emotional responsiveness, reinforcement-based decision-making, and attention, including deficient empathic responding.
What emotional disturbances are observed in individuals with psychopathic traits?
Reduced aversive conditioning and impaired emotion expression recognition, particularly for fear.
Which brain regions show reduced activity in fMRI studies of individuals with psychopathic traits during emotional tasks?
The amygdala and cortical regions such as the anterior insula and ventromedial prefrontal cortices.
How does reduced amygdala response relate to aggression in individuals with psychopathic traits?
Reduced response in the amygdala to the distress of others mediates the relationship between callous-unemotional (CU) traits and instrumental aggression.
How do individuals with psychopathy perform on reinforcement-based decision-making tasks?
They perform poorly, possibly due to reduced reinforcement sensitivity or responsiveness, which leads to poorer decisions, impulsivity and frustration-induced aggression.
Which brain regions show reduced neural responsiveness to reward in individuals with psychopathy?
The striatum and ventromedial prefrontal cortex.
How are moral judgements affected in psychopathy?
Individuals with psychopathy show reduced responding in the ventromedial, rostromedial and dorsomedial frontal cortices, anterior insula cortex, striatum and amygdala during moral judgement tasks.
What is the relationship between attention and emotional responding in psychopathy?
Manipulating attention influences emotional responding, and high levels of psychopathy are associated with a hyper-organized dorsal attention network.
What structural brain abnormalities are observed in individuals with psychopathy?
Reduced volume of the prefrontal cortex, hippocampus and amygdala, as well as increased and reduced volume of the dorsal and the ventral striatum and a large cavum septum pellucidum.
What are some common findings in structural MRI studies using VBM?
Reduced grey matter volume across several cortical and subcortical regions, including frontal, temporal, parietal and occipital regions, in addition to the anterior and posterior cingulate, anterior and posterior insula, amygdala, hippocampus and the caudate and putamen.
What is surface-based morphometry (SBM) and what has it revealed about psychopathy?
SBM examines cortical thickness, surface area, and gyrification. Studies have found reduced cortical thickness in the frontal and temporal lobes in individuals with psychopathy, and reduced gyrification in the middle cingulate cortex.
What is the most commonly used measure to assess psychopathy in clinical and forensic settings?
The Hare Psychopathy Checklist–Revised (PCL-R).
How is the PCL-R administered?
It is administered via a semistructured interview and review of collateral information and should be conducted by a suitably qualified and experienced clinician.