NATURE NURTURE Flashcards
define nature
behaviour is the product of innate biological or inherited genetic factors, e.g, eye colour, skin colour, skin pigmentation
define heredity
process in which traits are passed down genetically from one generation to the next
define evolution
characteristics of the human species that are a product of evolution; individual differences are the result of a person’s unique genetic code
what are examples of evolution in the nature vs nurture debate?
reproduction, survival, natural selection (e.g, bowlby)
explain the key research in the nature vs nurture debate?
- schiz affects 1% of the population
- gottesman and shields found an increased risk of 46% for developing schiz when both parents. they found a concordance rate for SZ: for MZ twins = 48% and for DZ twins 17%
- mcguffin found c rates for major depressive disorder to be MZ 46% and SZ 20%
define nurture
behaviour is the product of environmental influences (e.g, anything outside the body such as people, events, the world)
define tabula rasa
the concept of the human mind as a “blank slate” that it gradually filled as a result of human experience
how is bowlby key research for the nurture debate?
- children believed to have social releases: behaviours that increase the chances of care and therefore the chances of survival (e.g, crying and smiling)
- adults are driven to provide care during offspring’s critical period, which increases the survival of the gene pool
what is an interactionist?
the view that both nature and nurture work together to shape human behaviour
what is key research for interactionists?
- attachment patterns between an infant and its parent are often the result of a two-way street, in which the child’s innate temperament (nature) will influence the way its parents respond to it (nurture)
- bandura and the bobo doll research found that observation and imitation plus the biological urge to be aggressive
what is the diathesis stress model?
suggests that psychology is caused by a biological vulnerability which is only expressed when couples with a biological or environmental trigger
what is key research for the diathesis stress model?
tienari (2004) found that in a group of finnish adoptees, those most likely to develop schiz had biological relatives with a history of the disorder (vuln) and had relationships with their adoptive families that were dysfunctional (trigger)
what is epigenetics?
- a change in our genetic activity without changing our genetic code
- aspects of our lifestyle (smoking, diet, pollution, war) we encounter could leave “epigenetic marks” on our DNA, these marks could then influence the genes of our children. (like the effects of radiation)
- this introduces a third element into the nature-nurture debate: the life experiences of previous generations
what are 4 eval points for the nature-nurture debate