ba

• What is the primary focus of the biological approach to understanding human behavior?

  Biological structures and processes
• How does the biological approach view the relationship between the mind and body?

  The mind lives in the brain
• What does neurochemistry refer to?

  Action of chemicals in the brain
• What can an imbalance of neurotransmitters cause?

  Some mental disorders
• Which neurotransmitter is mentioned as being underproduced in OCD?

  Serotonin
• What do twin studies investigate in the biological approach?

  Genetic influences on behavior
• What are concordance rates used for in twin studies?

  To measure shared characteristics
• How do concordance rates differ between identical and non-identical twins?

  Higher in identical twins
• What is a person's genotype?

  Their actual genetic make-up
• What is phenotype?

  Expression of genes through characteristics
• How does the expression of genotype (phenotype) get influenced?

  By environmental factors
• How can phenylketonuria (PKU) be prevented?

  By a restricted diet
• What does the interaction of nature and nurture suggest about human behavior?

  It depends on both genetic and environmental factors
• Who proposed the theory of natural selection?

  Darwin
• What is the main idea of natural selection in relation to behavior?

  Genetically determined behaviors enhance survival
• What are adaptive genes described as?

  Genes that provide advantages
• What is an example of an adaptive behavior in newborns?

  Attachment behaviors
• What are the key features of the biological approach?

  • Focus on biological structures and processes
  • Mind and body are interconnected
  • Neurochemical basis of behavior
  • Genetic basis of behavior
  • Interaction of nature and nurture
  • Theory of evolution and natural selection