Arousal approaches to motivation
People sometimes seek or avoid stimulation to regulate activation.
Theory family The classification describes how this account is used here; it is not an evidence rating.
Central claim
Organisms act to maintain an optimal range of physiological and cortical activation, seeking stimulation when under-aroused and reducing stimulation when over-aroused, with task performance varying by complexity.
Proposed mechanism
Behavior can increase arousal when stimulation is low and reduce it when stimulation is excessive. The relation between activation and performance depends on what the task demands.
Evidence: (Spielman et al., 2020)
What would it predict?
Increasing activation may help performance on an easy or well-practiced task yet hinder a demanding task at higher levels. A test should measure activation separately from performance.
An original test formulation derived from the account, not a claim that this exact study was performed.
Evidence and status
OpenStax discusses arousal approaches to motivation and the Yerkes and Dodson (1908) relation as an alternative to explaining all action through drive reduction. Its discussion distinguishes optimal arousal for simple versus complex tasks rather than identifying a single best activation level.
Evidence: (Spielman et al., 2020)
Major contributors
Robert Yerkes; John Dodson; later arousal researchers
A selective attribution, not a complete intellectual genealogy or a sole-founder claim.
Apply the explanation
Original teaching scenario
A little stimulation helps someone begin a routine task, while intense pressure interferes with solving an unfamiliar multistep problem.
Constructed for learning. This scenario does not report an empirical result.
Common confusion: Drive-reduction theory or a single ideal stress level
Arousal approaches explain why boredom motivates stimulation seeking and why optimal activation shifts downward on complex tasks rather than prescribing one fixed level for all performance.
Compare: Does motivation always reduce stimulation?
Evidence: (Spielman et al., 2020)
Limits and alternatives
- An inverted curve is not a universal law with one ideal stress level. Arousal, anxiety and motivation are different constructs, and task difficulty changes the proposed relationship.
Evidence: (Spielman et al., 2020)
Textbook connection
Direct coveragePsychology 2e: 10.1 Motivation
This section directly discusses the account presented here. The profile is an original synthesis, not a reproduction of the textbook.
Related explanations
Compare: Does motivation always reduce stimulation? · Inspect research methods
Sources and inspection notes
Checked October 21, 2026. An inspection date is not a publication date. Original experiments described by a textbook are not individually re-audited unless a separate primary source is listed.
- Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020). Psychology 2e. OpenStax. https://openstax.org/books/psychology-2e/pages/10-1-motivationTextbook section inspected, October 21, 2026
Supports the introductory account and historical framing. Does not independently verify every original experiment cited by the textbook.