Nervous And Endocrine Theory Essay

982 Words4 Pages
One main principle of the biological level of analysis is that emotions and behaviour are products of the anatomy and physiology of the nervous and endocrine systems. This principle implies that all observable behaviour and internal mental activity can be brought back to physiology - which can be defined as the way in which a living organ(ism) functions. Firstly, the principle states that the physiology of the nervous system can affect behaviour: the nervous system consists of the Central Nervous System (CNS) - the brain and the spinal cord - as well as the peripheral nervous system (the nerves which carry electrical signals to and from the CNS). These nerve cells are adapted to transfer electric signals through dendrites, axons, synaptic terminals, and most importantly, neurotransmitters. Neurotransmitters are chemicals which are released from the cross synaptic cleft and bind to receptors on another neuron. Secondly, the principle focuses on the endocrine system, which regulates hormones in the body. Hormones are chemicals that are transferred through the bloodstream and send signals to specific parts of the body. Finally, brain localization can also play a part in affecting emotions and behaviour. This stems from the localization of function theory - that…show more content…
In all three studies, there was a factor relating to the brain and hormones that effected and proved certain hypothesises. Through various forms of experimentation, we are able to view how our anatomy in different areas offers evidence to support the principle, whether that may be in case studies, animal studies and laboratory experiments. Having a wide range of evidence proves the principle to be correct to the extent that it can be recognised by
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