violence Flashcards
what is most important when considering violence?
has to be intentional
actual, attempted, or threatened physical harm that is deliberate and non-consenting, includes fear-inducing behaviour
how can violence be seen as a choice?
the proximal cause of violence is a decision to act violently
the decision is influenced by a host of biological, psychological and social factors
what are examples of factors that can lead to violence?
neurological insult, hormonal abnormality (personal factors)
psychosis, personality disorder (psychological)
exposure to violent models, attitudes that condone violence (social)
what are the 2 types of violence?
- instrumental/proactive: external motivator (revenge, power, money), not emotionally driven, planned, premeditated, arousal is coincidental
- affective/reactive: emotionally-driven, high arousal, triggers easy to identify (physiological symptoms, faulty thinking) lack of self-control
what is the general aggression model (Anderson & Bushman)
- inputs can be a person or a situation
- routes: the three states are affect, cognition, or arousal
- outcomes: the results are appraisal and decision process which can lead to a)thoughtful action or b)impulsive action which both result in a social encounter
what is psychopathy
a personality disorder characterized by: an arrogant, deceitful interpersonal style, efficient affective experiences, impulsive and irresponsible behaviours, early onset&diverse antisocial behaviours
what are the 4 facets of the PCL-R?
facet 1: interpersonal–> glib, superficial, grandiose, lying, manipulative
facet 2: affective–>lack of remorse, shallow effect, lack of empathy, not responsible
facet 3: lifestyle–>needs stimulation, parasitic lifestyle, lack of goals, impulsivity, irresponsible
facet 4: antisocial–> poor. behavioural controls, early behavioural problems, delinquency, conditional release, criminal versatility
what are the 4 theories of psychopathy?
- brain damage/structural anomalies: e.g. prefrontal cortex
- complex brain structures
- increased activation for negative emotional stimuli and decreased activation for positive emotional stimuli (Kiehl et al.)
- overall volume reductions (Raine et al.), important for decison-making and impulse control
brain structures involved in psychopathy (2)
- Striatum: involved in voluntary movement, decision-making and processing rewards, increased volume in psychopaths, reward-oriented-less affected by consequences
- amygdala/hippocampus: part of the emotion/memory centre, less blood flow/less processing of emotional stimuli, less affected by fear
such as brain damage, structural anomalies
startle reflex
Partick et al. 1993
- reflex occurs when something unexpected occurs its magnified if person is in negative emotional state or feeling threatened, but reduced if in a positive state
- presented startle probes of positive, neutral and unpleasant objects, psychopaths
- non-psychopaths increased blinking when they were shown unpleasant pictures but psychopaths did not increase
interaction model
individual is born with a certain predisposition (determined by genetics) and through interaction with environmental factors (e.g. neglect/abuse) psychopathic traits develop
affective mimicry (Jones, 2014)
to be successful at manipulation others, one must be able to: read cues of vulnerability in others, avoid detection by appearing to be socially trustworthy, and display a range of emotions even if not felt
perceptions of victim vulnerability (Grayson & Stein, 1981)
a persons manner of walking as a cue (gait)
Book (2013), Ritchie (2018), Wheeler(2009) et al study on perceiving how a victim walks
students and incarcerated people have a higher psychopaths score associated with greater accuracy in perceiving walker’s vulnerability
-incarcerated people with higher factor 1 scores more likely to report using gait cues (book et al)
fear-enjoyment hypothesis (Hosker-field et al., 2016)
people with psychopathic traits show fewer negative responses to fearful stimuli
- show heightened positive responses to fearful stimuli
- have positivity bias in processing fearful expressions in others