memoria falsa Flashcards

1
Q

what is a false memory

A

an episodic memory which is objectively false but in which the person strongly believes

memory for an entire event that was never experienced in an individual’s lifetime

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2
Q

how is false memory different from memory suggestibility

A

similar but different to suggestibility, which focuses more on changing an aspect of an episodic memory, such as a detail about a colour or an object e.g. seeing a stop sign rather than a Yield sign

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3
Q

what are delayed (non-recent) allegation cases

A

non-recent complaints’ are those that occurred more than 28 days prior to the report

many delay are much longer

big problem in UK in recent years

e.g. the proportion of sexual offences reported to the police that are non-recent now comprise 30-40% of all recorded serious sexual offences (college of policing, 2019)

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4
Q

challenges for the police investigating delayed allegations

A

the longer the delay between the event and report, the more opportunity for evidence to be altered, damaged, destroyed or lost

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5
Q

relating to corroboration evidence

A

corroboration is the process of confirming or supporting a statement

if someone says something happened, corroboration is proof from another angle that shows it likely did

corroboration comes from thorough investigation and seeking the fine-grain detail that may seem peripheral to the investigation
- potential documentary evidence might include photos, diaries, school reports, employment records, medical records
- more recent investigations reflect technology changes, social media and other online content, computer analysis, phone data
- scene visits to venues of significance
- local enquiries to find other witnesses

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6
Q

relating to memory recall

A

the completeness and accuracy of recall decreases as the delay between witnessing and recall increases

ppl forget things, peripheral but important details can be lost

memories become gist-based

memories fragment

implications for uncovering information that might not prove the offence, but support consistency and corroboration (and therefore, credibility)

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7
Q

relating to memory accuracy

A

memory is fallible

increased risk of suggestibility after a delay

increased risk of source-monitoring errors and misidentification following a delay

increased risk of suggestibility and error following poor encoding

potential risk of false memory

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8
Q

questions and considerations

A

to what extent can we trust decades-old memories

what factors make them more or less reliable

is it possible to gather sufficient reliable evidence in such cases

can the suspect defend themselves against such allegations

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9
Q

George Franklin, Sr.

A

Redwood City, California, 1990

Franklin stood trial for murdering Susan Nason (8 year old) on september 22nd, 1969

his daughter Eileen, only 8 at the time of the murder, claimed to have witnessed it, repressed it, and then recovered her memory

Eileen’s memory report was believed by her therapist, some of her family, and by the San Mateo County district attorney’s office, which chose to prosecute her father

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10
Q

the case

A

lack of physical evidence, so court relied on expert witnesses on the repression and recovery of memory:

  • psychiatric testimony from Dr Terr about repression
  • psychological testimony from Prof Loftus about memory

Terr’s testimony accepted as scientific fact; Loftus’s testimony rejected on the basis that Loftus was not a clinician

The jury, impressed by Eileen’s detailed and confident memory, found her father guilty of murder in the first degree in 1990

1st time an American citizen had been tried and convicted of murder on the basis of a repressed memory

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11
Q
A

a judge found errors during the original trial, so Franklin’s conviction was overturned in 1995

while waiting for a new trials, Eileen’s sister came forward and admitted that Eileen’s memories were recovered using hypnosis

originally both sisters denied hypnosis was involved - which is important bc hypnosis can make memories less reliable or even create false memories

the state’s Supreme court had already ruled that any testimony based on hypnotically recovered memories is unreliable and not allowed in court

Eileen later claimed she remembered her father committing 2 other murders

but DNA evidence proved he didn’t commit them, which made her look unreliable

with her credibility destroyed, the case against Franklin fell apart

he was released from prison in 1996

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12
Q

increase of cases going to court

A

growing numbers of individuals claiming recovered memories of CSA (child sexual abuse) led to changes in the law in UK and USA

legislation now allows for the delayed reporting of childhood abuse to be admissible in court

USA: has to be reported within 3 years of the time they remembered the abuse

this led to an increase of cases going to court

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13
Q

backlash against accusations

A

During the 1990s and 2000s, as more people (often adults) came forward with “recovered memories” of child sexual abuse (CSA), some of them accused parents, carers, teachers, and others of abuse that supposedly happened years or even decades earlier.

As a result, groups formed to support people who believed they were falsely accused, especially when the accusations were based on recovered memories.

In the UK, the ‘British False Memory Society’ started in 1992

Now there are several large organisations including:
-Victims of child abuse laws (VOCAL)
-United campaign against false allegations of abuse (UCAFAA)
-Falsely accused carers and teachers (FACT)

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14
Q

Gary Ramona

A

successful executive, married with 3 children

his daughter, Holly (19 years), had sought therapy for bulimia and depression

her therapist told her that 80% of bulimia cases were a result of being sexually abused as a child

Holly subsequently reported a recovered memory of being abused by her father

no physical evidence

mother sided with the daughter and filled for divorce

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15
Q

the case 1991

A

father brought suit against the therapists involved

expert evidence again from Loftus and Terr

jury decision= Holly’s psychiatrist and therapist had developed false memories of sexual abuse through irresponsible and negligent therapeutic practice

Ramona awarded $500,000 in damages

however, in the process Ramona lost his wife, children, home, job, reputation, friends, money and house

This landmark case established a parents’ right to sue the therapists for planting false memories of sexual abuse in child’s mind

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16
Q

questions

A

how should the legal system deal with evidence based on repressed/recovered memory claims

should evidence based on recovered memories be admissible

are recovered memories reliable

is it possible that recovered memories are sometimes false

investigating the authenticity of recovered memories has led to a serious and emotionally charged false memory debate “the memory wars”

17
Q

what are the 2 sides of the debate

A

therapists’ position (psychoanalysis)
- memories are reproductive
- people repress memories of traumatic events
- helping people recover repressed memories allows them to heal

psychologists’ position
- memories are reconstructive
- the recovered memories are likely to be products of the therapeutic process itself

18
Q

repressed memory recovery techniques

A

suggestion:
- if you have a feeling that something abusive happened to you, it probably did
- many women don’t have memories … this doesn’t mean they weren’t abuse

guided imagery and use of photos:
- take an image from a past memory and tell a story about it; truth or fantasy is irrelevant

hypnotic age regression:
- believed to tap the unconscious and facilitate the retrieval of repressed memories

dream interpretation:
- dreams are channels to unconscious and must be interpreted
- nightmares, recurring dreams, dreams with access signals (e.g. locked doors, phallic symbols secret passages) interpreted as cues to sexual abuse

group therapy:
- share stories
- believe each other
- they have similar experiences
- normalise the recovery of repressed memories

18
Q

Freud (1856-1939)

A

founder of psychoanalysis

a person’s thoughts and behaviours emerge from tension generated by unconscious motives and unresolved childhood conflicts

repressed memories of trauma -> present day dysfunction

finding the cause was thought to be key to alleviate problems

childhood trauma is often thought to be a cause

Freud believed that he could not influence his patients during therapy

he believed that the pressure was justified because his patients often resisted the idea that they had been abused

overcoming such resistance, according to Freud, was crucial to the success of the treatment

19
Q

is there evidence that individuals repress or dissociate memories of traumatic events

A

events of our past may sometimes come back to us in sudden recollection, but research finds no evidence that this happens with traumatic memories

prospective research (following people after a traumatic event) finds that though trauma victims would like to forget their experiences, they do not

20
Q

are recovered memories products of the therapeutic process itself

A

trauma or abuse are suggested as a potential cause of the present day problem

clients are encouraged to imagine this might have happened

clients are encouraged to elaborate on any thoughts or beliefs of trauma/abuse

disclosed information is taken at face value

21
Q

is it possible to implant memories

A

is it possible for people to come to report compelling and vivid memories of events that did not happen

there have been paradigms used to explore the possibility of false memories

22
Q

what is 1 paradigm that has been used to explore the possibility of false memories

A

DRM paradigm

Roediger & McDermott (1995)

participants study lists of semantically related words
- sour, candy, sugar, bitter, good, taste, tooth

when later testes, ps often falsely recall non-presented critical lures (sweet)

is this convincing evidence for the existence of false memories

23
Q
  1. the lost in the mall paradigm Loftus and Pickrell (1995(
A

24 participants received suggestions from a sibling

siblings said that they were lost in a mall

6 ps (25%) had full or partial memory for the event

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what are problems with loftus and pickrell's study
it is possible that the results do not generalise to memory for childhood sexual abuse the experience of childhood sexual abuse is a relatively implausible event for most children in contrast, getting lost is a familiar childhood event that is relatively plausible for most children most children have been lost at least once
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pezdek, finger, hodge (1997)
20 participants were presented with: - 1 true childhood event - 2 false childhood events: - plausible event: loftus's lost in a mall target event - implausible event: received a rectal enema target event dependent variable: whether each ps recalled information beyond that presented in the description 3/20 (15%) recalled the plausible event vs 0/20 recalled the implausible event
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mazzoni & kirsch's metacognitive model (2002)
a psychological theory that helps explain how people can come to believe false memories metacognition means thinking abt your thinking they proposed that the acceptance of a false memory happens in 3 stages: 1. plausibility - the person must believe the event could have happened 2. personal belief - they start to believe that the event actually happened to them. 3. memory construction - over time, the person develops a memory of the event. this is where metacognitive monitoring fails - the person can't tell the difference between a real memory and a constructed one
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3. the imagination inflation paradigm
Garry et al (1996, 2001) participants completed a life events inventory 60 items each describing a discrete childhood event eg. broke a window with my hand respondents indicate on 7-point likert scale how confident they were that the events happened to them before the age of 10 years ps asked to imagine events that they had no memory of -often over a 2 week period post experimental Life events inventory (pretence of original being lost) imagining an event increases subjective confidence that the event actually happened
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why does imagining an event increase subjective confidence that the event actually happened
imagining an event makes it more accessible - gives it detail, context - makes it seem more familiar and more plausible - increases the chance of source monitoring errors
29
similar but better? imagination paradigm
Wade et al 2002 20 ps given 3 interviews over a 2 week period about 3 true photos and one false (doctored) photo - being in a hot air balloon doctored photographs elicited about 35% (interview 1) to 50% (interview 3) false reports (elaborating beyond information seen in the photo)
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4. the crashing memories paradigm
crombag et al 1996 193 participants asked "Did you see the television film of the moment the plane hit the apartment building? yes or no. 107 (55%) claimed to have seen the video footage of the actual crash yet no actual video footage of the crash exists
31
more examples of the crashing memories paradigm
Ost et al (2002): Car crash of Princess Diana: 44% false reports. Granhag et al. (2003): Sinking of the Estonia ferry (± 900 casualties): 52% false reports. Ost et al. (2006), Wilson & French (2006): Explosion in a Bali nightclub: 38%, 36% false reports. Jelicic et al. (2006) Pim Fortuyn (Dutch politician) murder: 63% false reports; 23% gave details.
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5. false memory implantation method
otgar and moldoveanu (2022) ps received 20 autobiographical events including a critical false event (a swimsuit falling off) and had to indicate whether they ever experienced these events 1 week later, ps who indicated that they had not experienced the false event received a second survey suggesting that they had previously said they had ps had to provide belief and recollection ratings and event-related details a 2nd manipulation was to say that the false event happened once (single group) or that the event had happened repeatedly (repeated group) depending on the memory type (e.g. false belief or false memory), false memory implantation ranged between 9% and 30% false beliefs were most likely to be elicited in the single group
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considerations
Many of these paradigms use methods similar to those that might be encountered in a therapy session: -Repeated suggestion -Imagining a suggested event -The use of photos
34
Scoboria et al. (2017)
A ‘Mega Analysis’ of eight false memory studies. The authors claim to provide the most valid estimate of false memory formation and associated moderating factors within the implantation literature to date.  Developed a reliable coding system that was applied to reports from eight published implantation studies (N=423). Independent raters coded transcripts using seven criteria: (1) accepting the suggestion,(2) elaboration beyond the suggestion, (3) imagery, (4) coherence, (5) emotion, (6) memory statements, and (7) not rejecting the suggestion. Using this coding scheme, 30.4% of cases were classified as false memories and another 23% were classified as having accepted the event to some degree.
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