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.
Texting is addicting. Once you get emotionally involved with constant outside stimulation assaulting your brain, it is hard to stop looking at your machine every two minutes. Without rapid fire words appearing on a screen, you feel bored, not part of the action. Bill O'Reilly
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
NASA has been one of the most successful public investments in motivating students to do well and achieve all they can achieve. It's sad that we are turning the programme in a direction where it will reduce the amount of motivation and stimulation it provides to young people. Neil Armstrong
We need to distinguish between stress and stimulation. Having deadlines, setting goals, and pushing yourself to perform at capacity are stimulating. Stress is when you're anxious, upset, or frustrated, which dramatically reduce your ability to perform. Andrew Bernstein