The Arousal Curve
Beyond basic survival needs, arousal theories show how our internal activation level shapes behavior and performance.
The Yerkes-Dodson Law states that arousal and performance form an inverted U. Performance peaks at a moderate, optimal level.
| Task type | Optimal arousal level |
|---|---|
| Simple / well-practiced | Relatively high |
| Complex / unfamiliar | Relatively low |
Common pitfall: Assuming more arousal is always better. In complex tasks, too much arousal causes performance to crash.
Arousal in Action
A moderately nervous athlete might nail a simple routine under high arousal. But that same anxiety will derail someone solving a novel, tricky problem.
The core formula for this relationship is:
Unlike Maslow's hierarchy of needs, arousal theories focus specifically on how activated or keyed up you are while pursuing a goal, and how that interacts with task demands.