Using examples, discuss how this has helped us to understand human behaviour

Describe how neurons communicate and provide detailed account of the bological processes, this should be succinct. Explain normal function of neurons, action potentials and the electro-chemical reaction. Then discuss the arguments relating to how this has helped us understand human behaviour with relevant examples depression, schizophrenia and drugs. Explain how neuron activity elicits and/or controls human behaviour. Provide examples of human behaviour that the central nervous system mediates, consider whether human behaviour can be understood at the biology level alone. discuss that biology and psycholoical behaviour is reciprocal and that social enviornment also influences behaviour.