"A noteworthy exception exists in the domain of sexual inference. Haselton and Buss (2000) argued that the documented tendency for men to overestimate women’s sexual intent could be an adaptive bias designed by natural selection. Because men’s reproductionis limited primarily by the number of sexual partners to whom they gain sexual access, a bias that caused men to invest on the side of assuming sexual interest would have resulted in fewer missed sexual opportunities, and hence greater offspring number, than un-biased sexual inferences. Therefore, natural selection should favor sexual overperception in men. (We further discuss this example later.) A second example occurs in the perceptual domain. Neuhoff (2001) argued thatthe perceptual bias toward thinking that incomingsources of sound will arrive sooner than they actually do may be adaptive, because it is better to be ready too early for an incoming object, than too late."
- Haselton, M. & Nettle D. - Personality and Social Psycology Review
Isto explica tudo!
http://rapidshare.de/files/11873901/biases.pdf.html para o artigo completo
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