Biological Approach - Approaches Revision Notes

• What does the Biological Approach propose about thoughts, feelings, and behaviors?


  They have a biological basis resulting from internal, uncontrollable biological causes.
• What does the Biological Approach propose about thoughts, feelings, and behaviors?


  They have a biological basis resulting from internal, uncontrollable biological causes.
• What do biological psychologists study?


  They study internal structures such as genes, neurochemistry, and the nervous system.
• How does the Biological Approach view the mind in relation to the brain?


  The approach does not consider the mind to be separate from the brain.
• What research method is commonly used to study the influence of genes?


  Twin studies are used to study the influence of genes.
• What do concordance rates in twin studies indicate?


  They indicate the extent to which twins share the same characteristics.
• How do concordance rates differ between MZ and DZ twins?


  MZ twins share 100% of the same genes, while DZ twins share about 50% of their genes.
• What does a higher concordance rate for a trait in MZ twins compared to DZ twins suggest?


  It suggests a genetic basis for that trait.
• What is the definition of genotype?


  Genotype is a person’s genetic make-up; the set of genes that a person possesses.
• What does phenotype refer to?


  Phenotype refers to the observable characteristics of an individual.
• How is phenotype determined?

  Phenotype is determined by the interaction between genes and the environment.
• What is the relationship between MZ twins' genotype and phenotype?


  MZ twins share 100% of the same genes (genotype) but may have different expressions of those genes (phenotype).
• What do biological psychologists study regarding brain structures?


  They study the role of different parts of the brain in various functions, traits, behaviors, and disorders.