What is free will?
The notion that humans can make choices and their behaviour/thoughts are not determined by biological or external forces.
Which approach fully advocates free will?
The humanistic approach.
What is determinism?
The view that an individual’s behaviour is shaped or controlled by internal or external forces rather than an individuals will to do something.
What is hard determinism?
Also called fatalism. View that all behaviour is caused by internal or external forces.
What is a strength of soft determinism?
Proposed by James. behaviour may be predictable, but we do have ability to make rational conscious choices in everyday situations.
What is biological determinism?
Emphasised by the biological approach. The belief that behaviour is caused by biological influences we cannot control.
What is environmental determinsism?
The belief that behaviour is caused by features of the environment, e.g Skinner says our experience of choice is merely the sum of total reinforcement contigencies throughout our lives.
What is psychic determinism?
The belief that behaviour is caused by unconscious psychodynamic conflicts we cannot control.
What is a strength of free will over determinism? (Practical value)
Even if we do not actually exercise free will in our everyday lives on a daily basis, thinking we do can improve our mental health. Roberts looked at adolescents who had a strong belief in fatalism. Found that they were significantly at greater risk of developing depression, those who exhibit an external rather than internal locus of control, are likely to be less optimistic. So even if we do not have free will, the fact that we believe we do may have a positive impact on mind and behaviour.
What is a limitation of free will? (Research evidence)
Brain scan evidence does not support it, but does support determinism. Libet instructed participants to chose a random moment to flick their wrist while he measured activity in their brain. Had to say when they had a conscious will to move. Found that the unconscious brain activity leading up to the conscious decision came about half a second before they consciously felt they had decided to move. So even our most basic experiences of free will are actually determined by our brain before we are aware of them.
What is the counterpoint for Libet’s study?
We would expect the brain to be involved in decision making. Just because the action comes before the conscious awareness of the decision to act doesn’t mean there was no decision to act, just that it took time to reach consciousness. Our conscious awareness is simply a read out of our unconscious decision making. So this evidence is not appropriate as a challenge to free will.
What is a limitation of determinism? (The law)
Position of the legal system on responsibility.
The hard determinist stance is that individual choice is not the cause of behaviour. This is not consistent with the way the legal system works, In a court of law, offenders are held responsible for their actions. A defendednt exercised free will in comitting the crime. Suggests that determinist arguments do not work in the real world.
What is the extra evaluation point for the free will vs determinism debate? (Do we want to determinism?)
Determinist approaches helped establish psychology as a science, and has produced effective real world applications in therpaies and behavioural interventions.
However, free will has intuitive appeal, most of us see ourselves as making our own choices rather than being pushed by choices we can’t control. free will also may be liberating for some people in terms of not accepting ones fate, e.g if they come from a criminal background.
What is the nature-nurture debate?
Concerned with the extent to which aspects of behaviour are a product of inherited or aquired characteristics.
Why is the nature nurture debate called the interactionist approach?
Concerned with what the relative contribution of nature and nurture is, as they interact.
What is the diathesis stress model?
Behaviour is caused by a biological or environmental vulnerability which is only expressed when coupled with a biological or environmental trigger.
What are epigenetics?
Change in our genetic activity without changing the genes themselves. Aspects of our lifestyle or events in our lives will leaves marks on our DNA which switch genes on or off.
Epigenetics may go on to influence the genetic codes of our children as well as their children.
What is nature?
Inherited influences. Early nativists such as Descartes argued that all human characteristics are innate. Psychological characteristics like intelligence or personality are determined by genes just as physical characteristics are.
What is nurture?
The influence of experience and the environment. Empiricists like Locke argued that the mind is a blank slate at birth, which is shaped by the environment. Lerner identified that a child can be influenced by the environment pre and post natally.
What is concordance?
The degree to which 2 people are similar on a particular trait. Provides an estimate to which a trait is inherited.
What is heritability?
The proportion of differences between individuals in a population, with regards to a particular trait, that is due to genetic variation.
What does a heritability figure of 0.01 mean?
Genes contribute almost nothing to individual differences.
What does a heritability figure of 1.0 mean?
Genes are the only reason for individual differences.
What is a strength of the nature - nurture debate? (Adoption studies)
Useful as they separate the competing influences of nature and nurture. If adoptive children are found to be more similar to their adoptive parents, this suggests environment is the bigger influence. Whereas if they are more similar to their biological parents, then genetic factors dominate. Rhee and Waldman did a meta analysis of adoption studies and found that genetic influences accounted for 41% of the variance in aggression. Shows how research can separate the influences of nature vs nurture.