Harking back to neurons compsci: neurotransmitters can modulate by their amount transmitted (saturation of the receptors, or not), so I can imagine if there's j

Harking back to neurons compsci: neurotransmitters can modulate by their amount transmitted (saturation of the receptors, or not), so I can imagine if there's just not enough around, that certain signals will not (optimally) be transmitted.