Final answer:
The biological approach in psychology has three main assumptions: genetic influence, neurochemical factors, and an evolutionary perspective.
Step-by-step explanation:
The biological approach in psychology is based on certain assumptions. Three main assumptions of the biological approach are:
- Genetic Influence: The biological approach assumes that our behavior and mental processes are influenced by our genetic makeup. Genes play a significant role in determining our traits, personality, and even susceptibility to certain diseases.
- Neurochemical Factors: This assumption states that the functioning of our brain and nervous system, including the production and regulation of neurotransmitters, affects our behavior and mental processes.
- Evolutionary Perspective: The biological approach acknowledges that our behavior and mental processes have evolved over time due to natural selection. It suggests that certain behaviors and traits may have developed because they provided an advantage for survival and reproduction.