PSY 2301 Lecture 2: PSY 2301 - Jan 17 - evolution of species and comparison
16 Mar 2018
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Charles darwin - biological origins of all animals. Theory of evolution implied direct link between man and nature. Natural selection of physical as well as behavioural traits. Explanation for how new species evolve and existing species change over time. Differential success in the reproduction of different characteristics (phenotypes) results from the interaction of organisms with their environment. Genetic mutation adaptive trait increases chances of survival trait passed onto offspring. Because all animal species are related, their neurons and their brains must be related too. Rationale for studying simpler animals to understand humans. Because all species of animals are related, their behaviours must be related too. Emotional expressions in humans (across cultures) and other animals are similar. Both the brain and behaviour changed bit by bit in animals that evolved to greater complexity, as humans obviously did. Fair amount of liquid surrounding the brain (not simply skull and brain)
