Neurotransmitters are chemical messengers that help nerve cells (neurons) communicate with one another. These chemical messengers affect the brain by either exciting (stimulating), inhibiting ...

As such, the locus coeruleus is the principal site for brain synthesis of noradrenaline, a neurotransmitter. Noradrenaline is contained in small round compartments, called vesicles, inside the ...

There are two types of removal: Re-uptake – the neurotransmitter is reabsorbed back into the presynaptic neuron and restored inside a vesicle ready to be used again. For example, noradrenaline.

However, a series of weak stimuli can combine, increasing the amount of neurotransmitter that is released. This results in enough neurotransmitter being diffused across the synaptic cleft to ...

Neurobiologists have made a breakthrough in understanding how environmental factors might contribute to autism spectrum ...