preview

Unit 9 M1

Better Essays

Psychology is the study of the human mind and mental processes along with how they affect behaviour. Our behaviours have developed through evolution; a theory which was developed by Charles Darwin in the 1800s. The theory of evolution was the theory that animals and humans through natural selection have changed over generations to adapt to survive in a specific environment. The core assumptions are that as our physical characteristics have adapted over time, our behaviours have developed too because our genes influence our behaviour. For example, the ‘warrior gene’ – MAOA-L gene affects people’s behaviour by causing them to become more aggressive when provoked. Darwin’s theory can be applied to adaptive social behaviours in humans. Cuddling …show more content…

This shows that homosexuality is a genetic trait since 100% identical twins were gay. The twins have the same DNA and are exhibiting the same trait. Another study to conduct research on environmentally caused conditions was conducted to see the correlation between peptic ulcer disease and identical/non-identical twins who had been reared apart. The results showed that peptic ulcer disease isn’t entirely caused by genetic as the twins had been brought up apart, the disease may also have been caused by their environment. Their diets may also be a factor. There is an ethical issue with conducting this experiment, as it is highly unethical to separate twins. Some diseases caused by genetics are cystic fibrosis and sickle cell anaemia. Some diseases caused by the environment are a cold and scarlet …show more content…

The theory of evolution through natural selection was proposed by Charles Darwin in the 1800s. This theory shows that our behaviours have changed over time as the result of our physical characteristics adapting to its environment over time. This is a biological approach as our genes are what influence our behaviour. Human’s adaptive social behaviour supports the theory of evolution as cuddling with children creates a feeling of warmth and security which replicates the feeling of being in the womb. Wundt’s introspective experiment had its strengths and limitations. The experiment provided an insight on a human’s personal mental processes. But there could be a problem with the validity of the results because the participant may choose not to be 100% truthful with the content of their thoughts in fear of, for example, embarrassment. Another limitation is that we don’t always learn things the same way so humans can learn from the past. They take a different approach the second time

Get Access