Optimal Arousal
The concept of optimal arousal in relation to performance on a task is depicted here. Performance is maximized at the optimal level of arousal, and it tapers off during under- and over-arousal. For easy tasks, a higher level of arousal generally increases performance; for harder tasks, a lower level of arousal is better.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"CNX Psychology, Psychology. July 26, 2015."
http://cnx.org/contents/4abf04bf-93a0-45c3-9cbc-2cefd46e68cc@4.100:55/Psychology
OpenStax CNX
CC BY 4.0.