NEUROTRANSMITTERS are the brain chemicals that communicate information throughout our brain and body. They relay signals between nerve cells, called “neurons.” The brain uses neurotransmitters to tell your heart to beat, your lungs to breathe, and your stomach to digest. They can also affect mood, sleep, concentration, weight, and can cause adverse symptoms when they are out of balance. Neurotransmitter levels can be depleted many ways. As a matter of fact, it is estimated that 86% of Americans have suboptimal neurotransmitter levels. Stress, poor diet, neurotoxins, genetic predisposition, drug (prescription and recreational), alcohol and caffeine usage can cause these levels to be out of optimal range.
There are two kinds of neurotransmitters – INHIBITORY and EXCITATORY. Excitatory neurotransmitters are not necessarily exciting – they are what stimulate the brain. Those that calm the brain and help create balance are called inhibitory. Inhibitory neurotransmitters balance mood and are easily depleted when the excitatory neurotransmitters are overactive.
Information Direct From: http://www.neurogistics.com/TheScience/WhatareNeurotransmi09CE.asp
This can be applied to the idea of the Information Highway in that the library canopy portals can act as the synapses - gathering and transferring information on to the next connection. A network of information is therefore created. The canopy could facilitate this flexibility in that the movement of shared information could be shown externally and become a protection/defense mechanism. If the information is not protected then the success of parliamentary function fails. If the canopy cannot facilitate this, even to the extent of the synapses/library portals, then Australia is vulnerable.