Huw Williams
School of Psychology
University of Exeter
&
* Emergency Department
Royal Devon & Exeter Hospital w.h.williams@exeter.ac.uk
Centre for Clinical Neuropsychological Research (CCNR)
NHS
Birbaumer and colleagues (2005) –fMRI
& clips of emotive film of facial expression
(eg fear).
“psychopathic criminals” lacked activation in limbic structures less amygdala activity = the higher score for “psychopathy”
? a lack registering fear linked to lack of inhibition
seeing fear inhibits one from acting violently (see
Mobbs et al, 2008).
PFC (Pre-Frontal Cortex) & Amygdala
Raine et al. (1998) - using (PET) normal functioning in the Pre Frontal Cortex of
“predatory” murderers BUT “impulsive” had reduced activation in the PFC & enhanced activity in limbic structures. reductions in pre-frontal cortex & angular gyrus & corpus callosum in violent murderers –
? poor inter-regulation of cognition and emotion
(eg inhibitory systems of left hem not affecting right etc.)
What might cause these differential patterns of activation is not known
Anti-social Personality Disorder (APD) often occur in the context of a range of issues - history of childhood maltreatment or trauma may be common.
“There are no concrete biological markers – genetic or physiological – that can predict [ASP] behaviour” (Mobbs et al, 2008)
AND
When there is a biological risk eg from
Birth complications
Minor physical anomalies*
Environmental Poisoning (e.g. lead)
Mal-nutrition (leading to brain mal-development)
Such issue is not usually significant unless there is a “evocative environment”
“presence of negative psychosocial factor” (Raine, 2002) (esp. maternal rejection*)
frontal-tempo-limbic systems are crucial for
Monitoring arousal level & control of behaviour towards “goal states”
Injury often leads to:
impulsivity, poor planning, inadequate response inhibition and inflexibility (Milders,
Fuchs & Crawford, 2003).
&
“poor anger management (reactive), irritability and impulse control are common” (Hawley et al.
2003).
personality and emotional deficits – due to de-
coupling of cognition and emotion has been described by Damasio (1994), as “acquired sociopathy”” -
“TBI is an epidemic … yet it is silent … the public largely seem unaware of it… …”
Thurman, 2002
Head Injury is the leading cause of death and disability in children & working age adults
(Leurssen et al, 1988; Graham, 2001; Maas et al, 2006)
Prevalence rate of 8% (Silver et al, 2001) to 30% (McKinley et al,
2008) in population studies
Yates, Williams et al. 2006, JNNP
200
180
160
140
120
100
80
60
40
20
0
MIXED RURAL - Female
Age Group
URBAN - Female MIXED RURAL - Male URBAN - Male
Differences in socio-economic status (SES) between attendees with MHI and Orthopdedic (OI) comparison group.
SES determined by the “Index of Multiple Deprivation” and put into quintiles.
A greater proportion of those with MHI are in the 2 most deprived quintiles than in the comparison group with upper-limb orthopaedic injuries (OI).
Chi-square = 36.4, p < 0.001.
Percentages of attendees in the deprivation (IMD) quintiles compared to the local population
100%
80%
60%
40%
20%
0%
Population total MHI total OI total
3
2
5 (afluent)
4
1 (deprived)
WHO REPORT Guardian – 10.12.08
"Over the last 20 years, there have been very dramatic decreases in child injury deaths," said Prof. Elizabeth
Towner…but "The figures mask a very deep social divide, a strong and persistent social divide," she said. "The poorer children have not shared equally in the progress of the last 20 years."
mental health & drug/alcohol problems identified
“relative to general population, [prisoners]…experience poorer physical, mental, and social health…[more] mental illness and disability, drug, alcohol…suicide, self harm…lower life expectance [etc.]…” Orme et al. BMJ editorial, 2005, 330. p 918 and see Fazel & Danesh ( 2002a (Lancet))
Studies seldom examine the serious physical illnesses OR intellectual disability prevalent in prisons
“….delivery of services to prisoners with anxiety and affective disorders, drugs and alcohol problems, brain injury , learning disability, challenging behaviour and repetitive self-harm has changed little or worsened.” Dearbhla Duffy, et al. (2003) p. 242
(our emphasis)
Report of the New South Wales Chief Health Officer
- 45% male and 39% female reported at least one head injury… www.health.nsw.gov.au/public-health/chorep/prs/prs_chronic_type.htm
Barnfield & Leathem (98) NZ study:
118 respondents to questionnaire survey
86.4% reported some form of head injury (56.7%
MORE than 1).
Reported ++difficulties with memory and socialization
Mewse, Mills, Williams & Tonks et al (in prep)
453 males held in
HMP Exeter
Pps:
196 aged between
18 and 54 years
(43% response rate) sentenced or remanded
Other
Murder/manslaughter
Robbery
Sexual offences
Drugs offences
Fraud/deception
Driving offences
Missing
Burglary
Shoplifting/theft
Violent offences
120
100
80
60
40
20
0
140
“Any tbi?”
No
Yes
39.6 %
60.4% we estimate that
65% may have had a TBI.
• 10% Severe
• 5.6 % Moderate
• 49.4% Mild
Average age at 1st imprisonment:
21 – Non-TBI
16 - TBI
Number of severe tbi
Number of moderate t
Number of mild tbi
Missing No Yes
Any tbi?
8.00
7.00
6.00
5.00
4.00
3.00
2.00
1.00
19.
5
Missing
Number of mild tbis
No %
0.00 = NO TBI and
Mod-severe TBI)
1.
2.
3.
4.
5.
6.
7.
8.
1.00
19.5
2.00
16.9
3.00
6.7
4.00
2.1
5.00
3.1
6.00
.5
7.00
.5
8.00
.5
.00
Timonen et al (2002)
population based cohort study in Finland involving more than
12,000 subjects
TBI during childhood or adolescence associated with
fourfold increased risk of developing later mental disorder with coexisting offending in adult (aged 31) male cohort members (OR
4.1)
TBI might have been a result of high novelty seeking and low harm avoidance in people susceptible (for issues of genetics, family background, social forces etc.) to risky behaviours – coincidental to crime….BUT
TBI earlier than age 12 were found to have committed crimes significantly earlier than those who had a head injury later
Therefore - temporal congruency suggests a causal link
Leon-Carrion J, Ramos FJ. (2003) (BI)
Retrospective factor analytic study of links between head injuries (in childhood and adolescence) in adult violent and non-violent prisoners.
subjects in both groups had a history of academic difficulties.
Trend for both groups to have had behavioural and academic problems at school
Head injury in addition to prior learning disability/school problems increases chances of having a violent offending profile
Violent offending (noted) to be “associated with non-treated brain injury”
? rehabilitation of head injury may be a measure of crime prevention
Turkstra et al. (2003)
offenders with TBI against “true peers” without TBI
20 individuals convicted of violent crime compared to 20 non convicted controls (matched for education, age and employment).
TBI NOT more common in the offender group BUT there was variance on
of injury
non-offending group– typically – Milder TBI from (eg sports). offending group injuries
More assaults (with probable longer lasting changes in behaviour). had more issue related to anger control.
TBI is not necessary for crime, but that TBI may contribute to
“expression of violence” - increase the risk “threshold” in vulnerable people.
Kenny et al (2007) juvenile detention in Sydney-
242 young offenders (76% response rate)
Alcohol, substance abuse,
TBI and cultural backgrounds offences rated as:
low (common assault) moderate (robbery with weapon) serious (homicide).
85 individuals had experienced a head injury
Violent offending more common for those with KO history
odds ratios:
of 2.37 for having s serious violent crime if the young offender had had a head injury.
2.82 if the YO had been unconscious. hazardous alcohol drinking history increased risk of severe violent offending. regression models produced “multiplicative model” of how TBI is related to crime.
Injury leads to (potentially) an array of problems:
•Attention, working memory, disinhibition etc.
See at Catroppa &
Anderson, 2004
•Dose response
•Selective
•Some recovery
Social behavioural problems:
may not be evident until adolescence
(Lishman, 1998; Teichner & Golden,
2000)
may occur in isolation from cognitive deficits (Anderson, Northam, Hendy
& Wrennall, 2001)
•lack of “moral” reasoning.
(Damasio 1996; Anderson, Bechara, Damasio,
Tranel, & Damasio, 1999; Hanks, Temkin,
Machamer & Dikmen 1999; Levin & Hanten,
Powell, 2004).
• Often there is inappropriate social behaviour
the most common and disruptive issue
(Henry, Phillips, Crawford, Theodorou &
Summers, 2006)
Anger episodes more “reactive” than “planned” in adolescence
(Dooley et al. BI, 2008)
Symptoms persist long-term post-injury.
(Anderson 2003)
Theory of Mind (ToM):
ABI may impact on skills
to attribute mental states to others, to know they have beliefs, desires and intentions that are different from one's own for emotional understanding of others (ToM and
Empathy)
Early components achieved by 4yrs, later developments by 11yrs
these deficits may be a key issue in social situations…
Empathy:
to recognise or understand another's state of mind or emotion
& “co-experience” their outlook or emotions within oneself "putting oneself into another's shoes”
Sophisticated levels achieved during early adolescence
Both skills are fluid during childhood
→ likely to be vulnerable to the effects of an acquired brain injury (ABI)?
e.g. misperceive elements of a
situation (not reading emotion of others & perceive threat when there was none), make poor social
judgements (and behave inappropriately) and lack communication skills to negotiate out of conflict
(Turkstra et al 2003)
Understanding others through non-verbal cues
Charles Robert Darwin (1809-1882)
The Expressions of Emotions in Man and Animals . London: John Murray,
1881.
“Expression of emotion evolve from behaviours that indicate what an animal is likely to do next…If these expressions benefit the animal that displays them, they will evolve in ways that enhance their communicative function…”
Tonks et al, 2007/2008: A HEURISTIC FOR SOCIO-EMOTIONAL PROCESSING
External stimuli
Functional at birth. Enables association learning.
Thalamo amygdala pathway.
Intrinsic emotional arousal/ control system.
Amygdala.
Emotion Recognition.
Eye gaze detection/reading
Hippocampus
External context information
Emotional response
Develops rapidly during the 18 months following birth, with an identifiable further significant stage of improvement at around
11 years old
Face expression analysis
Sensory/ spatial analysis system.
Vocal Analysis
Eye Configuration analysis
Develops throughout childhood and adolescence, assuming increasing executive control over emotions.
Affect perception
Executive system synthesis .
Executive functioning
Emotion regulation control
(Le Doux, 1999; Rolls, 1999; Hornack, Rolls & Wade 1996; Jackson
& Moffat, 1987; Baron-Cohen, 2000; Evans, 2003)
Tonks, Williams et al - Emotion processing post ABI
Male or Female
Mean Time
Lapse Since
Insult (yrs)
Mean Injury
Age
(yrs)
Nature/ Frequency of
Insult.
(M=Male, F=Female)
Age group
Nine to ten male
2 female
1
Total
3
2.17
5.3
Ten to eleven
Eleven to twelve
1
3
1
1
2
4
.88
5.4
9.8
5.17
M= 1 Severe TBI, 1 Stroke.
F= 1 Severe TBI
M= 1 Heamorrage (AVM).
F= 1 Meningitis
M= 1 mild TBI, 2 Tumour.
F= 1 moderate TBI
Twelve to thirteen 6.46
2 0 2 6.33
M= 2 Severe TBI.
Thirteen to fourteen 6.14
2 1 3 7.17
Fourteen to Fifteen
Fifteen Plus*
4 0 4
2.89
11.42
Table 5: Summary and injury profiles for the ABI participants in the study
1 1 2
2.33
13.79
Group Total
15 5 20
M= 1 Severe TBI, 1 mod
TBI. F= 1 Severe TBI.
M= 1 Severe TBI, 1 mod
TBI. 1 mild TBI. 1 Stroke.
M= 1 Severe TBI.
F= 1 Severe TBI
TBI=14, Meningitis=1,
Tumour=2,
Heamorrage=1, Stroke=2.
67 (age matched) children were recruited from primary and secondary schools. These were given the batteries of tests.
78
76
82
80
74
72
70
68
Group
AB I
Healthy
F(1,85)=14.227 p<.000
ANCOVA (FAS):
F(1,84)=10.992 p<.001
70
60
50
Group
AB I
80
70
Healt hy
60
50
40 up to 1 1
PIAGR OUP
11 to 1 2
Group
AB I
12 Pl us
He al thy
(Tonks et al, 2007/2008/2009)
Group trends:
•those with difficulties with angry faces experienced peer problems
• poor at identifying expressions reported less pro-social.
•Specific deficits
•KL - not recognise sad faces
• MN – not “getting” emotional tone. He could not understand sarcastic remarks
•OP- reads all “eyes” as hostile. increasingly violent
[also see: Milders, Fuchs and Crawford 2003 re: adults with TBI;
Skye MacDonald & colleagues re: TASIT (awareness of social inference)]
dynamic cues- movement and interaction- have been shown to be dissociated from static cues
(Adolphs, Tranel &
Damasio, 2003; McDonald & Saunders, 2005).
dynamic cues are infrequently used in research and clinical assessments
(Atkinson & Adolph, 2005).
a gap between clinical assessments and reported social behavioural problems?
Tonks, Williams, Frampton, Yates, Slater (in prep)
20 ABI children aged 9 to 15 yrs (M 2.5, SD 2.1) were compared to closely age matched controls (M 11.6, SD
2.2).
Parents of all participants completed the Parent SDQ as a measure of socio-emotional behaviour.
THEN, all participants watched the following Movie…
MOVIE CLIP:
Inspired by Heider and Simmel
“So they are having a game and he pushes that stick down and he is trapped. and sad. and they have gone off together. They made friends. so he is left out and is sad now” (C, aged 5)
Comparisons: ABI vs. controls:
Differences in Social communication words used.
Condition
Free description **
Guided Questions **
Combined mean score *
ABI children
M SD
2.19
3.4
.86
.5
1.6
.08
M
Controls
SD
3.13
.3
3.97
3.08
4.6
3.3
** p<.
01, * p<.
05
BUT - they did differ in terms of the number of social communication words used to describe the movie.
Peer problems (on SDQ) correlated with lack of
‘Social communication’ words ( r =-0.47, p= 0.037)
Theory of Mind & Empathy in adolesence
Sarah Wall, Huw Williams, & Ian Frampton
ToM
A Test of Social Processing (Turkstra et al., 2001)
Faux Pas test (Baron-Cohen et al., 1999)
Empathising
Socio-Emotional Questionnaire for Children
“I (he/she) notice(s) when other people are happy”
“I (he/she) prefer(s) being alone than with others”
+ Strengths and Difficulties Q & DEX-C
(Dysexecutive)
Empathy in non-injured children in early adolesence
(100+ boys and girls) (Wall et al. in press)
42
41
40
39
38
37
36
35
Girls
Boys
11 12 13 14
Age boys tended to show a decrease in positive social-emotional functioning, alongside self-reports of increased anti-social behaviour.
Those with a history of MTBI rated particularly low
100
90
80
70
60
50
40
30
20
10
0
18
17
16
15
14
13
12
11
10
9
8
Theory of Mind (complex) & Critical age of injury
Wall, Williams, Frampton (in prep)
BI TD
Boys
Girls
25 young adolescents (10 to 15yrs) with a history of ABI, 50 typicallydeveloping (TD) matched controls
Global impairments
Poorer empathic responding
Less accurate ToM
Faux pas
SEQ-Kids
Parental reports of poor emotion recognition and empathy
Self-reports of poor emotion recognition and empathy
+ executive impairments (DEX-C
+ EF measures), increased daily difficulties and impact (SDQ)
Birth to 2 2 to 6 6 to 12 +
Age at injury (years)
Average
Borderline/impaired
The evidence is not clear cut
there are many confounding factors within the relationships between injury and later offending
the link between crime and TBI may be an epiphenomenon whereby criminal behaviour “particularly violent crime, is likely to result from complex interaction of factors such as genetic pre-disposition, emotional stress, poverty, substance abuse and child abuse”
Turkstra, 2004 (P 40).
BUT: TBI may be an important factor in offending behaviour.
“poor prefrontal function [may be associated with] impulsive violence,
[but] this brain dysfunction may be… a predisposition only” p.54 Raine,
2002
MOREOVER: catch 22…
“The person at risk of violence needs to recognise his risk and take preventative steps…but [those with]…damage to…prefrontal cortex…may not be able to reflect on their behaviour and take responsibility…[as their] internal soul-searching [is] damaged…”
Raine (2002)
better screening for head injury at pre-sentencing and on admission to prison/custodial services –
for better understanding of risk, and for rehabilitative purposes
Esp. those with executive (& socio-affective) difficulties who may have difficulty in changing behaviour patterns in response to contingencies.
Developmental factors may be particularly important:
There may be sleeper effects – esp. relevant to socio-emote functions at transition to adolescence public safety and long term economic advantage could be gained by better, earlier, targeted interventions to
prevent injury, reduce impact of injury
Systematic neuro-rehabilitation -
Targetted at ?socio-emotional processing (esp. ToM/Empathy etc.):
eg “Mind Reading: An Interactive Guide to Emotions” (Baron-
Cohen, 2004)
Impulse control? (Stop, (breathe!!) Think, Do! (or DON’T Do))
W.J. Freeman