Biological heredity is more important in determining behaviours, which are present at birth
Nurture
Learning/environment is more important in determining behaviour due to the idea of 'tabula rasa'
Interactionism
Genes and environment interact to produce behaviours
Diathesis-Stress Model
May inherit genetic predisposition for health conditions but isn't expressed until triggered by the environment
(+/-) A03: Freud
Freud argues interactionist approach of biologically driven psychosexual stages, empahsising the interaction of these stages with a child's unique life experiences during the stages
(+/-) A03: OCD and Schizophrenia
Concordance rates are higher in MZ twins than DZ twins, suggesting genetics, but results aren't 100% so implication of environmental factors
Gottesman - MZ = 48%, DZ = 17%
Nestadt - MZ = 68%, DZ = 31%
(+/-) A03: Dichotomous View
Taking a dichotomous view can benefit treatment development, assuming OCD is entirely innate genetic factors affecting serotonin transport led to creation of SSRIs; opposite for treatment of phobias
