Self-Deception about Fecundity in Women : Modeling the Burley Hypothesis

Area of Science:

• Evolutionary biology
• Human reproductive strategies
• Behavioral ecology

Background:

• Concealed fecundity and extended female sexual receptivity are observed in primates, including humans.
• These traits offer advantages in both monogamous relationships (paternity assurance) and extrapair liaisons (good genes).
• Human evolution of decision-making capacity allows women to influence fertility and potentially alter sexual motivation.

Purpose of the Study:

• To develop a descriptive model analyzing the implications of female decision-making on reproductive physiology and behavior.
• To explore the hypothesis that male and female traits have been shaped by natural selection in response to female choice.
• To understand the role of self-deception in human reproductive strategies.

Main Methods:

• Development of a descriptive model.
• Analysis of the interplay between female decision-making, concealed fecundity, and male-female interaction.
• Examination of factors influencing ovulation timing and conception probability.

Main Results:

• Female inability to accurately recognize fecundity, variable ovulation timing, and unconscious cue transmission form a syndrome of self-deception.
• Consensus motivation for coitus influences the importance of variable ovulation dates and conception probability.
• The described syndrome is influenced by self-deception.

Conclusions:

• Female decision-making and self-deception play a significant role in shaping human reproductive strategies.
• Natural selection may have favored these traits in response to female control over fertility.
• Further empirical research is needed to validate these findings and explore related mechanisms.