nature-nurture debate Flashcards
Nature
Early nativists such as Rene Descartes argued that human characteristics and even some aspects of knowledge are innate.
Heritability coefficient
numerical figure ranging from 0 to 1 which indicates the extent to which a characteristic has a genetic basis. General figure for heritability in IQ is around 0.5 across multiple studies in varying populations. Suggests that both genetic and environment are important factors in intelligence.
Nurture
In contrast to Nature, John Locke argued that mind is blank slate at birth and learning and experiences occurs as a result of the environment.
Interactionism
Heredity (nature) and the environment (nurture) have an influence on each other.
Diathesis-stress model
An interactionist approach. Genes create a vulnerability and stressors in the environment trigger behaviours.
Epigenetics
A change in our genetic activity without changing our genetic code, e.g. smoking.
Diathesis stress model (study)
Tienari et al found that in a group of Finnish adoptees those most likely to develop schizophrenia had biological relatives with a history of the disorder and had relationships with their adoptive families that were defined as ‘dysfunctional’
Epigenetics ~(study)
Dias and Ressler gave male lab mice electric shocks every time they were exposed to the smell of acetophenone. Mice showed a fear reaction as soon as the scent was presented.