Models of sexual response

Why models matter

The model you hold determines what counts as normal. A linear model in which desire always comes first makes responsive desire look like a disorder. A model in which genital arousal equals wanting makes non-concordance look like dishonesty. Most sexual distress people bring to clinicians turns out to be a mismatch with an inaccurate model rather than a dysfunction.

Masters and Johnson, 1966

The four-phase cycle — excitement, plateau, orgasm, resolution — built from direct laboratory observation of physiological response in several hundred participants across roughly 10,000 recorded cycles. It was the first systematic physiological description and it remains accurate about what happens in the body: vasocongestion, myotonia, the sex flush, vaginal tenting, testicular elevation, and the refractory period in men.

Its limitations: it assumed a universal linear sequence, treated male and female response as near-identical, omitted desire entirely, and drew on a sample selected for reliable orgasmic response in laboratory conditions.

Kaplan, 1979

Helen Singer Kaplan added desire as a distinct first phase, giving desire–arousal–orgasm. This shaped diagnostic categories for decades, including the DSM's separate desire and arousal disorders, and it introduced the clinically important idea that desire problems and arousal problems are different problems.

Its limitation is the same as its contribution: it placed desire first and made its absence a disorder.

Basson, 2000

Rosemary Basson proposed a circular model after observing that the linear sequence did not describe the experience of most women in long-term relationships. In it, many people begin from sexual neutrality rather than desire, choose to be receptive for reasons including emotional intimacy and closeness, and experience desire only after arousal is underway. Satisfaction then feeds back into willingness next time.

This introduced responsive desire as normal rather than deficient, and it is now the standard framework in sexual medicine. It underpinned the DSM-5's merger of desire and arousal disorders in women into a single category, on the basis that separating them did not reflect how the response actually works.

Dual control model, Bancroft and Janssen, 2000

Sexual response is the net output of two independent systems: sexual excitation (the accelerator) and sexual inhibition (the brakes). Individuals differ stably in the sensitivity of each, measurable with the SIS/SES scales, and the two are not simply opposite ends of one dimension — a person can have both a sensitive accelerator and sensitive brakes.

This model explains a great deal the others do not:

• Why the same stimulus arouses one person and shuts down another.
• Why stress, distraction, shame, pain anticipation and fear of consequences suppress response regardless of how attractive the partner is.
• Why the most effective intervention is usually removing brakes rather than adding stimulation — the finding with the clearest practical value in the whole field.
• Why alcohol at moderate doses can increase perceived arousal by reducing inhibition while impairing physiological response.

Incentive motivation model, Toates and Ågmo

Sexual response is not driven by an internal appetite building up over time, but by the interaction of a responsive nervous system with an incentive stimulus in a context. This displaces the hydraulic "drive" metaphor — the idea that sexual need accumulates and must be discharged — which the evidence does not support and which underlies several unhelpful beliefs about entitlement and about abstinence.

Where the field is now

The working synthesis in sexual medicine combines these rather than choosing one: a responsive system with individual excitation and inhibition sensitivities, activated by context-dependent incentives, in which desire may precede or follow arousal, and in which genital and subjective response are only loosely coupled.

Practical implications that follow directly:

• Waiting to feel desire before starting is a poor strategy for a responsive-desire person.
• Context is not decoration. It is a component of the mechanism.
• Reducing what interferes usually achieves more than increasing stimulation.
• Genital response is not a consent signal or a desire measure.

Sources

• Masters WH, Johnson VE. Human Sexual Response, 1966.
• Kaplan HS. Disorders of Sexual Desire, 1979.
• Basson R. "The female sexual response: a different model." Journal of Sex & Marital Therapy, 2000; "Human sex-response cycles." 2001.
• Bancroft J, Janssen E. "The dual control model of male sexual response: a theoretical approach to centrally mediated erectile dysfunction." Neuroscience & Biobehavioral Reviews, 2000.
• Graham CA et al. "Turning on and turning off: a focus group study of the factors that affect women's sexual arousal." Archives of Sexual Behavior, 2004.
• Toates F. "An integrative theoretical framework for understanding sexual motivation, arousal, and behavior." Journal of Sex Research, 2009.
• Chivers ML et al. Archives of Sexual Behavior, 2010 (arousal non-concordance).

Last reviewed: August 2026.