The act of stimulating, or the state of being stimulated.
The irritating action of various agents (stimuli) on muscles, nerves, or a sensory end organ, by which activity is evoked; especially, the nervous impulse produced by various agents on nerves, or a sensory end organ, by which the part connected with the nerve is thrown into a state of activity; irritation.
The music itself is very challenging, so I've never really felt the lack of stimulation. I love to be creating; I love to be making things and solving problems, I suppose, and when I'm not, then I'm not an incredibly good person to be around. If I'm not busy, then I think I would be disaster. That's just the way things are. Brian May
The dignity of the artist lies in his duty of keeping awake the sense of wonder in the world. In this long vigil he often has to vary his methods of stimulation; but in this long vigil he is also himself striving against a continual tendency to sleep. Marc Chagall
I'm sure the feeling of fear, as long as you can take advantage of it and not be rendered useless by it, can make you extend yourself beyond what you would regard as your capacity. If you're afraid, the blood seems to flow freely through the veins, and you really do feel a sense of stimulation. Edmund Hillary
Normal people have an incredible lack of empathy. They have good emotional empathy, but they don't have much empathy for the autistic kid who is screaming at the baseball game because he can't stand the sensory overload. Or the autistic kid having a meltdown in the school cafeteria because there's too much stimulation. Temple Grandin
There is more refreshment and stimulation in a nap, even of the briefest, than in all the alcohol ever distilled. Ovid