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Copy of Personality
Transcript of Copy of Personality
Thomas Chess and Birch, Buss and Plomin, Kagan and Snidman, Eysenck, Raine et al, Farrington, Elander et al
Thomas, Chess and Birch
Kagan and Snidman
Raine et al
the ways of responding stayed the same throughout childhood. Temperament therefore has a genetic basis.
To discover whether how we respond to the environment remains constant
the 133 children were put into an 'easy', 'difficult' or 'slow to warm up' group.
133 children part of longitudinal study observing their behaviour. Parents were interviewed about their reaction to change
20% of the babies cried - high reactive 40% showed little emotion - low reactive and the remaining were in the middle
to see if temperament is due to biological differences
four month old babies were introduced to new situations. In the first minute the baby was near a caregiver ina care but for the next three they were out of sight but were shown toys
two temperaments are inherited differences to the way the brain respondse
to investigate 700 servicemen's personality
two dimensions: extroversion -introversion and neuroticism-stability
most people lie in the middle of the two dimensions
each soldier completed a questionnaire and the results were analysed using factor analysis
APD is caused by a reduction in the brains grey matter
to support the theory abnormalities of the prefrontal cortex cause APD
MRI scans were done on a group of 21 APD men and 34 healthy men.
APD group had a 11% reduction in prefrontal grey matter
situational factors cause antisocial behaviour
to investigate the development of antisocial behaviour in males from childhood to 50
A longitudinal study took place on 411 males living in an inner city, a deprived part of London. They were studied from 8 to 50. Their parents and teachers were interviewed. Criminal Records Office was checked to see if they/family were on it.
41% had been convicted between 10 and 50. Risk factors were criminals in family, low achievement, poverty and poor parenting
Elander et al
to investigate childhood rick factors to predict antisocial behaviour in adulthood
225 twins diagnosed with childhood disorders and interviewed them 10-25 years later
childhood hyperactivity, conduct disorders, low IQ and reading problems were strong predictors
disruptive behaviour can predict APD