What is "neuromodulators"

Usage examples of "neuromodulators".

But because the brain is such a finely equilibrated and dynamic system, with great capacities for self-adjustment and control, the effect of disrupting its biochemistry by flooding it, via a pill, with some drug which affects protein synthesis, or particular neurotransmitters or neuromodulators, is more likely to be the equivalent of trying to retune a radio or reprogram a computer by jamming a screwdriver into its circuit boards.

With this degree of isolation, Kandel could ignore any other sources of inputs to the system being studied -other peripheral nerves, circulating neuromodulators and so forth.