Biological

• Biological approach believes that anything psychological is first biological
• Biological approach believes behaviour can be influenced by factors such as : genes, hormones, neurotransmitters, brain and evolution
• Behaviour geneticists study whether behaviour characteristics such as intelligence, personality and mental disorders are inherited in the same way as physical characteristics
• Concordance rates are the extent to which both twins share the same characteristics
• Genotypes are the genetic makeup of a person
• Phenotypes describes the combined effect of genotypes and the environment on someone’s behaviour
• Natural selection is based on the idea that any genetically determined behaviour that enhances an idea ideals survival will continue into future generations
• Bio psychologist believe that different regions of the brain control behaviour
• Neurochemical imbalance in the brain are often associated with abnormal behaviour
• The endocrine system is a slow acting communication system that controls the level of hormones in circulation
• Biological approach has led to development of drug therapy
• Genetic basis of behaviour has led to identification of certain conditions such as schizophrenia to be identified early
• Biological approach provides us with theories on innate principals that determine our behaviour (nurture)