genetic basis of behaviour and evolution Flashcards
natural selection
In psychology, we consider whether behaviours we see today may once have been adaptive and helped us to survive and reproduce.
The theory of natural selection suggests that any behaviour that ensures survival and reproduction will be passed onto future generations.
For example, the peppered moth. Before the industrial revolution peppered moths were much lighter in colour. However due to industrial pollution the lighter coloured moths were easier for predators to see. Therefore it was the darker moths, those that blended in with the pollution, that survived to reproduce and their genes carried on. Today, peppered moths are much darker in colour.
Bowlby
Argued that attachment to a primary caregiver has evolved because it gives infants a survival advantage.
Buss
Argues that mate choices have evolved because they lead to reproductive success - women desire males with resources, because they will be able to provide for them, and their offspring while men prefer young, physically attractive women as it indicates fertility.