Harlow – Learning Theory
Food is less important than comfort
Schaffer & Emerson (1964) – Learning Theory
Infants aren’t necessarily attached to the adult who feed them
Bowlby (1969) – Bowlby’s Theory
Attachment is adaptive & innate
Lorenz (1952) – Bowlby’s Theory
Imprinting in animals
Hodges & Tizard (1989) – Bowlby’s Theory
Sensitive period
Belsky & Rovine (1987) – Bowlby’s Theory
Temperament hypothesis
Van Izjendoorn et al. (1999) – Types of Attachment
Meta-analysis
Ainsworth et al. (1978) – Types of Attachment
Strange situation findings
Prior & Glaser (1006) – Types of Attachment
Behaviour in later childhood
Ainsworth (1967) – Cultural Variations
Uganda study
Tronick et al (1992) – Cultural Variations
African tribe
Grossman & Grossman (1991) – Cultural Variations
German infants
Spitz & Wolf (1946) – Disruption of Attachment
Depression in infants (in institution)
Robertson & Robertson (1969) – Disruption of Attachment
Laura & John – no emotional care
Lucy & Kate – emotional care
Bohman & Sigurdsson (1978) – Disruption of Attachment
Adopted ‘problem children recovery
Bowlby et al. (1956) – Disruption of Attachment
Securely attached children tend to cope better
Hodges & Tizard (1989) – Failure to Form Attachment
All ex-institutional children had difficulties coping later in life
Rutter et al (2007) – Failure to Form Attachment
Romanian orphans adopted early showed normal in comparison to those who weren’t
Genie & Czech Twins – Failure to Form Attachment
Isolated children
Quinton et al. (1984) – Failure to Form Attachment
Poor parenting
NICHD – Day care & Aggression
Aggression linked to time in day care
EPPE – Day care & Aggression
High quality care
Prodromidis et al. (1995) – Day care & Aggression
Swedish – no aggression
Belsky et al. (2007) – Day care & Aggression
More strongly affected by factors at home
Belsky & Rovine (1988)