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Forensic Psychology

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... as evidence in homicide cases with self-defense pleas. ... Elements of Self-Defense. Seriousness of threatened harm. Imminence. Overt act. Rule of retreat ... – PowerPoint PPT presentation

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Title: Forensic Psychology


1
Forensic Psychology
  • Battered Woman Syndrome
  • Post Traumatic Stress Disorder

2
Plan for Today
  • Battered Women Syndrome
  • Learned Helplessness
  • Post Traumatic Stress Disorder
  • Rape Trauma Syndrome

3
Domestic Abuse (Jones, 1994a)
  • Leading cause of injury in American women sending
    more than 1 million for medical treatment every
    year
  • Spousal violence contributes ot one fourth of all
    suicide attempts by women
  • 37 of all obstetric patients are battered during
    pregnancy
  • 50 of homeless women and children are fleeing
    from male violence

4
Domestic Abuse
  • FBI reports that over 1400 women are killed by
    their partners each year (6 of homicides)
  • Lenore Walker (1992) over one third of all
    women will be abused at some point in their lives
  • 16 of American families experience violence,
    3-4 experience life threatening violence
  • Each year 188,000 women are injured severely
    enough to require serious medical attention
    (Straus Gelles, 1988)

5
Domestic Abusers Typology
  • Psychopathic abuser
  • Overcontrolled exploder
  • Emotionally volatile
  • no consistent typology for victims
  • Despite myths to the contrary domestic abuse
    victims cover all ethnicities, all levels of
    society, and all personality types

6
Syndrome
  • A group of symptoms that occur together and
    characterize a disease
  • Battered Woman Syndrome a womans presumed
    reactions to a pattern of continual physical and
    psychological abuse inflicted on her by her mate
  • BWS is not a diagnosable Mental Disorder

7
Battered Women Syndrome
  • American Psychiatric Association has recognized
    the syndrome in amicus briefs filed as evidence
    in homicide cases with self-defense pleas.
  • BWS is a justification to certain crimes like
    homicide that is used to support defenses of
    self-defense or insanity
  • Has been used to support children who kill
    abusive parents, same sex partner homicides, rape
    victims who kill attackers, coercion to
    participate as co-defendant in a serious crime

8
Components of Battered Woman Syndrome
  • Learned Helplessness
  • Lowered self-esteem
  • Impaired functioning
  • Loss of assumption of safety
  • Fear and terror
  • Anger/rage
  • Diminished alternatives
  • Cycle of abuse
  • Hypervigilance
  • High tolerance for cognitive inconsistency

9
Learned Helplessness
  • Seligman Johnston (1973)
  • dogs shocked in harness and placed in shuttlebox,
    60 could not avoid shock
  • Hiroto Seligman (1975)
  • 3 groups exposed to loud noise
  • Group 1 could find a button to stop noise
  • Group 2 nothing would stop noise
  • Gropu 3 asked to please sit and listen

10
Cognitive Qualifiers of Learned Helplessness
  • Inescapable aversive events inhibit learning
  • Loss of sense of control behavior has no effect
    on environment this generalizes to multiple
    situations
  • Global vs. Specific view of negative situations
  • External vs. Internal locus of control
  • Stable vs. Transitory view of life conditions

11
Learned Helplessness
  • Loose motivation to try to control events in
    environment or give up easily
  • Cognitively, ability to learn from experience is
    impaired
  • Emotional problems
  • Rats (ulcers), cats (ate less), dogs,
    (critically impaired task learning), monkeys
    (illness) humans (high blood pressure, depression)

12
Cycle of Abuse
  • Tension building phase
  • Acute battering incident
  • Contrition phase
  • - positive and negative reinforcement powerfully
    affect behavior
  • - Not all battering relationships follow this
    cycle (60-70)

13
Forensic Assessment of BWS
  • Self-reports, medical records, interviews with
    family, friends, co-workers and others
  • Abusive Behavior Observation Checklist (Dutton,
    1992)
  • Power and Control Wheel (Pence Paymor, 1985)

14
Psychological Abuse
  • Coercion and threats
  • Intimidation
  • Emotional abuse (humiliation)
  • Isolation
  • Minimization, denial, and blaming
  • Use of children to control spouse
  • Use of male privilege
  • Economic/resource abuse

15
Elements of Self-Defense
  • Seriousness of threatened harm
  • Imminence
  • Overt act
  • Rule of retreat
  • Responsibility for provoking incident
  • Equal force rule
  • Excessive force
  • Reasonableness (subjective vs. objective belief)

16
Battered Woman Defense
  • Most battered women who kill get convicted
  • Only 1/3 of homicides by battered women take
    place during a battering incident
  • Problem of imminence and reasonableness
  • R. v. Lavallee

17
Insanity and BWS
  • Insanity pleas do not succeed very often
  • Beatings rendered her insane at time of killing
  • Demeaning to characterize a women killing to save
    her own life as insane
  • Automatism plea (head injury caused a
    dissociative state such that intent could not be
    formed)
  • Post-Traumatic Stress Disorder

18
Expert Testimony on BWS
  • social framework evidence
  • Was perception of danger reasonable
  • Psychological damage from abuse
  • Why battered women stay in these relationships
    (recant testimony of past violence)
  • - personal strategies, formal and informal
    help-seeking efforts

19
Expert Myth Busting
  • Battered women are masochistic, crazy, low class,
    uneducated, and deserve abuse as they provoke the
    beatings
  • Battered women can always just leave the
    relationship (they dont mind abuse)
  • Batterer is not a loving partner or father and
    must be psychopathic

20
Post Traumatic Stress Disorder
  • Exposed to a traumatic event
  • experienced threat and intense fear or horror
  • B. The event is persistently re-experienced
  • - emotional recollections, nightmares,
    hallucinations, flashbacks, extreme reactivity,
    intense distress to objects that symbolize the
    event

21
Post Traumatic Stress Disorder
  • C. Avoidance of trauma stimuli and general
    numbing
  • flat affect, social isolation, lack of interest
    in activities, feelings of doom, detachment,
    memory blocks for the event
  • D. Persistent symptoms of increased arousal
  • insomnia, irritability, exaggerated startle
    response, difficulty concentrating
  • E. Duration of disturbance more than 1 month
  • F. The disturbance causes clinically significant
    distress or impairment in social, occupational,
    or other important areas of functioning
  • Acute Stress Disorder (less than 1 month)

22
Rape Trauma Syndrome
  • Acute Crisis Phase
  • Denial, shock, and disbelief
  • Disruption
  • Guilt, hostility, and blame (victim blaming)
  • Regression to state of helplessness or dependency
  • Distorted perceptions

23
Rape Trauma Syndrome
  • Long Term Reactions
  • Phobias
  • Disturbances in general functioning
  • Sexual problems
  • Changes in lifestyle

24
Rape Trauma Syndrome and PTSD
  • PTSD is present in many survivors of rape
  • Rape survivors may be the largest single group of
    PTSD sufferers
  • RTS is not in the DSM-IV, rather it is a concept
    used to describe common behaviors associated with
    rape survivors
  • Rape in RTS is prejudicial at trial
  • PTSD does not included important aspects of RTS
    such as depression, anger, and sexual disfunction

25
Expert Testimony
  • Address rape myths such as women secretly wish to
    be raped, most accusations are fake, and women
    cannot be raped against their will
  • On the issue of consent
  • On questions about the victims behavior
  • Addressing damages in a civil suit
  • As a defense for culpable behavior by a rape
    survivor
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