Sexual overperception bias means estimating that another person has more sexual interest than that person reports. Sexual underperception is the error in the other direction. Both require a comparison: an observer's estimate and a stated or otherwise defined criterion for the other person's interest.
That definition is narrower than “misreading the room.” It does not say why the disagreement occurred, whether either person was deceptive, or what anyone consented to do. Those are separate questions.
One conversation, two private ratings
Consider an invented scene. Ren and Jules are fictional adults at an evening fundraiser for a community film club. While putting away programs, they spend twenty minutes discussing film scores. Jules keeps the exchange going with questions until the programs are boxed. The intention is simple hospitality toward someone new to the club.
Each then fills out a card in private. Ren records a high estimate of Jules's sexual interest; Jules marks the low end of the scale. Judged against Jules's report at that moment, Ren's estimate is an overperception.
The scene illustrates the comparison without explaining its cause. The private card is not an objective reading of Jules's mind, and Ren does not act on the estimate. Perceived interest remains an inference. It never substitutes for consent to a particular interaction or activity.
What the foundational studies actually found
The early evidence did not all use the same definition of error. In Antonia Abbey's 1982 experiment, 144 White undergraduates took part in 36 sessions. An unacquainted man and woman spoke for five minutes while another man and woman observed. Male interactants and observers gave the female actor higher ratings on sexualized qualities such as seductiveness than female raters did. Ratings of her friendliness did not differ by rater sex. This established a group difference in interpretation, but it did not compare every judgment with the woman's own report of her interest.
A later study made that comparison more directly. Perilloux, Easton, and Buss studied 199 heterosexual undergraduates, with a mean age of 18.7. Each person completed five three-minute conversations and rated both personal interest and perceived partner interest. On average, the men overestimated the women's reported interest, while the women underestimated the men's. The standardized discrepancies were moderate in that sample (0.57 and 0.61, respectively).
This is the defensible form of the database claim: some opposite-sex interaction studies found that perceivers' estimates exceeded targets' self-reported interest, with the overperception concentrated among men in the direct speed-meeting study. It would be inaccurate to say that participants generally overestimated their partners, because the women in that study showed the opposite directional error.
The criterion also deserves scrutiny. A person's contemporaneous self-report is the relevant comparison for these designs, yet self-reports can be shaped by disclosure, question wording, or social expectations. A discrepancy score records disagreement. By itself, it does not reveal which mental process produced it.
The average is bounded by sample and setting
Most of this literature studies young heterosexual adults and labels participants within a binary men/women design. Those categories do not disentangle sex assigned at birth, gender identity, social role, or the full range of sexual orientations. A 2026 scope review calculated an average age of 22.9 for participants in the literature and located no replication sample of people aged 40 or older. Claims about all men, all women, or human behavior across the lifespan therefore outrun the evidence.
Results also change with context:
- In a retrospective survey, 102 heterosexual women and 114 heterosexual men recalled naturally occurring incidents. Women reported more occasions when men mistook friendliness for sexual interest than the reverse error. Recall, exposure, and reporting could influence those counts.
- A direct replication with 308 heterosexual Norwegian undergraduates found a similar directional pattern. One additional student culture does not establish cultural universality.
- In three studies of established heterosexual couples, men tended to underperceive their partners' desire, especially when avoiding rejection was salient. A pattern observed between new acquaintances can reverse in an ongoing relationship.
- Research across lesbian, gay, and bisexual identities found varied patterns. A small field study of 43 gay men found no evidence of overperception. The sample is too small for a broad null claim, but it directly warns against exporting heterosexual findings to every orientation.
Within the young heterosexual samples, there is substantial individual variation. Sociosexual orientation, one's own interest, relationship status, and the way a cue is presented have all been associated with estimates. These are group-level or correlational findings. They cannot identify a person's intentions from appearance or behavior.
Several mechanisms can produce the same error
One influential explanation is error management theory. It proposes that when ancestral costs of missing interest and falsely detecting it were unequal, selection could favor a decision policy that made more errors in one direction. The observed group pattern is consistent with that proposal in some settings. It does not establish a dedicated adaptation, a universal sex difference, or a benefit in a present-day interaction.
Signal-detection models separate two problems. Sensitivity is the ability to distinguish interest from friendliness; criterion is how much evidence a person requires before answering “interest.” Farris and colleagues found that men in their task more often classified friendliness as sexual and sexual interest as friendly. Their model pointed to weaker discrimination rather than a simply lenient threshold. Brandner and colleagues later found high sensitivity and overall underperception in vignette tasks. Difference scores could still make men look relatively more prone to overperception even when their estimates were closer to the pre-rated criterion.
Projection and sociosexuality offer another route. In a speed-dating study of 1,226 participants, the raw pattern again showed men's overestimation and women's underestimation. The sex difference became negligible after statistical mediation by sociosexual orientation and men's tendency to project their own interest onto women. Mediation does not prove causation, but it challenges a sex-only explanation.
Social scripts, expectations, question wording, target reporting, and stimulus format can also affect the result. A 2026 audit of 54 empirical papers concluded that sensitivity, prior beliefs, perceived costs, and reporting policies can create similar observed patterns. Existing designs rarely identify all of those components at once. The honest mechanism answer is plural and conditional.
Sexual misperception is not a consent rule
Sexual misperception is the umbrella term for errors in estimating interest, including overperception and underperception. It must remain separate from several neighboring concepts:
- Consent communication concerns a voluntary, current agreement to a specific activity. Attraction, friendliness, dating interest, or a previous agreement cannot replace it.
- Romantic interest may concern dating or emotional commitment. It is not interchangeable with sexual interest.
- Projection uses one's own state as evidence about another person's state. It may contribute to overperception, but it is not the discrepancy itself.
- Self-serving bias favors an interpretation that protects or enhances the self. An overestimate need not be flattering or consciously motivated.
- Hostile sexism and rape-supportive attitudes are attitude constructs. Some studies associate them with poorer cue use in selected samples, but they do not define sexual overperception and are not present in everyone who makes an error.
A critical review linked some sexual-perception measures with unwanted advances, aggression histories, and coercion-related attitudes. Those associations do not show that overperception causes harassment or assault. A perceptual error is neither necessary nor sufficient for coercive conduct, and it does not reduce responsibility for that conduct.
Sources
- Abbey, A. (1982). “Sex Differences in Attributions for Friendly Behavior: Do Males Misperceive Females' Friendliness?” Journal of Personality and Social Psychology, 42(5), 830–838.
- Haselton, M. G. (2003). “The Sexual Overperception Bias: Evidence of a Systematic Bias in Men from a Survey of Naturally Occurring Events.” Journal of Research in Personality, 37(1), 34–47.
- Perilloux, C., Easton, J. A., & Buss, D. M. (2012). “The Misperception of Sexual Interest.” Psychological Science, 23(2), 146–151.
- Lee, A. J., et al. (2020). “Sex Differences in Misperceptions of Sexual Interest Can Be Explained by Sociosexual Orientation and Men Projecting Their Own Interest Onto Women.” Psychological Science, 31(2), 184–192.
- Farris, C., Treat, T. A., Viken, R. J., & McFall, R. M. (2008). “Perceptual Mechanisms That Characterize Gender Differences in Decoding Women's Sexual Intent.” Psychological Science, 19(4), 348–354.
- Bendixen, M. (2014). “Evidence of Systematic Bias in Sexual Over- and Underperception of Naturally Occurring Events.” Evolutionary Psychology, 12(5), 1004–1021.
- Muise, A., Stanton, S. C. E., Kim, J. J., & Impett, E. A. (2016). “Not in the Mood? Men Under- (Not Over-) Perceive Their Partner's Sexual Desire in Established Intimate Relationships.” Journal of Personality and Social Psychology, 110(5), 725–742.
- Brandner, J. L., Pohlman, J., & Brase, G. L. (2021). “On Hits and Being Hit On.” Evolution and Human Behavior, 42(4), 331–342.
- Moran, J. B., et al. (2024). “(Mis)Perceiving Sexual Intent: A Mixed-Method Approach Investigating Sexual Overperception Across Diverse Sexual Identities.” Archives of Sexual Behavior, 53(2), 511–524.
- Samara, I. (2026). “Sexual Overperception as a Proximate Identification Problem.” Evolution and Human Behavior, 47(5), 106947.
- Haselton, M. G., & Buss, D. M. (2000). “Error Management Theory: A New Perspective on Biases in Cross-Sex Mind Reading.” Journal of Personality and Social Psychology, 78(1), 81–91.
- Farris, C. A., Treat, T. A., Viken, R. J., & McFall, R. M. (2008). “Sexual Coercion and the Misperception of Sexual Intent.” Clinical Psychology Review, 28(1), 48–66.
- Treat, T. A., Viken, R. J., Farris, C. A., & Smith, J. R. (2016). “Enhancing the Accuracy of Men's Perceptions of Women's Sexual Interest in the Laboratory.” Psychology of Violence, 6(4), 562–572.
- Krems and colleagues. (2026). “Overperceiving Desire, Underestimating Age: A Review of a Narrow Research Lens.” Frontiers in Psychology.