Prsentation PowerPoint

1
Tremblay et al., 2002
2
Statistics Canada (2001)
3
(No Transcript)
4
Adolphe Quetelet 1831

5
Eisner, 2003
6
Panel on the Understanding and Control of
Violent Behavior
"Modern Psychological perspectives emphasize that
aggressive and violent behaviors are learned
responses to frustration, that they can also be
learned as instruments for achieving goals, and
that the learning occurs by observing models of
such behavior. Such models may be observed in the
family, among peers, elsewhere in the
neighborhood, through the mass media ...".
USA National Academy of Sciences Reiss and Roth,
1993 p.7
7
since we do not allow improper language,
clearly we should also banish pictures and stage
plays which are indecentthe lawgiver should
not allow youth to be spectators of comedy until
they are of an age to sit at the public tables
and drink strong wine. By that time education
will have armed them against the evil influences
of such representations. Aristotle,
Politics, Book 7 chap 17
8

• Page 31 The
  majority of young people who become violent are
  adolescent-limited offenders who, in fact, show
  little or no evidence of high levels of
  aggression or other problem behaviours during
  their childhood(3).
• (3) Youth violence a report of the Surgeon
  general. Washington, DC United States Department
  of Health and Human Services. 2001.

9
(No Transcript)
10
The Montreal Longitudinal-Experimental Study
Subjects 1,037 boys from low SES neighborhoods
Assessment Ages 6, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 19, 23, 28
Sources Teachers, peers, parents, self,
official files. Direct Observation in home, at
school, in laboratory
Experiment Parent and child training (age 7-9
years) for aggressive boys in kindergarten
(randomized)
11
Brame et al., 2001
12
PHYSICAL AGGRESSION TRAJECTORIES(Nagin
Tremblay, 1999)
Group 2 (53)
Group 3 (28)
Group 1 (14)
Group 4 (4)
13
HIGH SCHOOL DIPLOMA ()
14
(No Transcript)
15
School Failure
Childhood Chronic Physical Aggression
Tobacco
Alcohol
Drugs
Early Sex
Depression
Unemployement
Poverty
16
Significant Predictors of Desistance Chronic vs
High Desistor (Nagin Tremblay, 2001)
17
PHYSICAL AGGRESSION TRAJECTORIES(Nagin
Tremblay, 1999)
Group 2 (53)
Group 3 (28)
Group 1 (14)
Group 4 (4)
18
He who considers things in their first growth
and origin... will obtain the clearest view of
them.
Aristotle, Politics, Book 1 chap 2
19
(No Transcript)
20
(No Transcript)
21

• WWW.NFB.CA

22
Guilford Press
23
WWW.EXCELLENCE-EARLYCHILDHHOD.CA
24
Physical Aggression TrajectoriesCôté et al.
(2004)
25
Aristotle (384-322 BC)
as the body is prior in order of growth to the
soul, so the irrational is prior to the rational.
The proof is that the anger and will and desire
are implanted in a child from their very birth,
but reason and understanding develop as they grow
older.
Politics, p. 405

26
ITS A GIRLS WORLD (NFB)
27


Vaillancourt et al. (2003)
28
Trajectories of physical aggression from 17 to 42
months of age
29
Dionne et al., 2003
30
Twin physical aggression (18-60 months)ACE
Models

• --------------------------------------------------
  ----------------------------------------------
• AGE A C E
• 18 m. 82 0 18
• --------------------------------------------------
  ----------------------------------------------

31
Twin physical aggression (18-60 months)ACE
Models

• --------------------------------------------------
  ----------------------------------------------
• AGE A C E
• 18 m. 82 0 18
• 30 m. 71 0 29
• --------------------------------------------------
  ----------------------------------------------

32
Twin physical aggression (18-60 months)ACE
Models

• --------------------------------------------------
  ----------------------------------------------
• AGE A C E
• 18 m. 82 0 18
• 30 m. 71 0 29
• 42 m. 30 37 32
• --------------------------------------------------
  ----------------------------------------------

33
Twin physical aggression (18-60 months)ACE
Models

• --------------------------------------------------
  ----------------------------------------------
• AGE A C E
• 18 m. 82 0 18
• 30 m. 71 0 29
• 42 m. 30 37 32
• 60 m. 0 58 42
• --------------------------------------------------
  ----------------------------------------------

34
Predictors of High Physical Aggression
Trajectory
Tremblay et al., 2004. Pediatrics
35
PREVENTION EXPERIMENTS
Olds et al., 1998. (Pregnancy to 24 m.)
Prevetion of antisocial behavior at 15 years of
age. Mednick et al., 1987. (Birth )
Prevention of antisocial behavior up to
adulthood Schweinhart et al., 1993. (36 to 48
m.) Prevention of antisocial behavior at 27
years of age. Raine, Venables, Mednick et al.,
2001. (36 to 60 months) CNS arousal and
orienting at 11 years of age Lacourse et al.,
2002. (84 to 108 months) Physical aggression
and school performance up to 18 years of age.
36
(No Transcript)
37
Summary

38
Humans do not learn to aggressThey learn not to
aggress

39
Tremblay (2003)
40
Cameiro Heckman, 2003
41
Unless you give infants everything they want,
they cry and get angry, they even beat their own
parents Thus an evil man is rather like a
sturdy boy, or a man of childish mind, and evil
is simply want of reason at an age when it
normally accrues to men by nature governed by
discipline and experience of harm. Thomas
HobbesOn the Citizen1647