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Related Concept Videos

Psychosexual Stages of Personality: Latency01:16

Psychosexual Stages of Personality: Latency

Following the phallic stage in Freud's theory of psychosexual development, children enter a phase called the latency period, which lasts from approximately six to twelve years of age. Unlike earlier stages, where sexual impulses played a central role, Freud believed these impulses are repressed during the latency period, becoming part of the unconscious. This stage is often described as a time of psychological calm after the turbulence of the phallic stage.
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Sigmund Freud's psychosexual theory of development suggests that early childhood experiences significantly shape personality and behavior. Freud proposed that development is discontinuous, occurring in five distinct stages, each defined by a focus on different erogenous zones. He believed that failure to resolve the conflicts specific to each stage successfully could result in fixation, potentially influencing behavior as adults.
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Psychosexual Stages of Personality: Phallic01:12

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The third stage of psychosexual development proposed by Freud is the phallic stage, occurring between the ages of 3 and 6. During this period, children become aware of their bodies and the differences between males and females. The erogenous zone in this stage is the genitals, and conflicts arise as children develop desires toward the opposite-sex parent. Boys experience the Oedipus complex, where they desire their mother and view their father as a rival. This leads to castration anxiety, the...
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The genital stage is the final phase of Sigmund Freud's theory of psychosexual development, beginning at puberty, around age 12. During this stage, sexual energy shifts from self-focused interests to external individuals, marking the development of mature adult sexuality. Freud saw this phase as a time of sexual reawakening, with desires directed toward others outside the family. A healthy transition into this stage, according to Freud, signifies the emergence of two key aspects of adult...

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Published on: August 13, 2015

Is there a sensitive period in human incest avoidance?

Liqun Luo1

  • 1Research Center for Social Development & Social Policy, Central China Normal University, Wuhan, P. R. China. lqluo@mail.ccnu.edu.cn

Evolutionary Psychology : an International Journal of Evolutionary Approaches to Psychology and Behavior
|September 6, 2012
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Early socialization with siblings may reduce later sexual attraction. This effect appears strongest when males lack maternal perinatal association (MPA) and have sisters with a small age gap, suggesting a sensitive developmental period.

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Area of Science:

  • Evolutionary Psychology
  • Developmental Psychology
  • Human Sexuality

Background:

  • Early co-socialization with opposite-sex peers is theorized to inhibit later sexual attraction.
  • The existence of a sensitive period for this effect has been debated.
  • Parental investment theory offers a framework for understanding these dynamics.

Purpose of the Study:

  • To investigate the role of maternal perinatal association (MPA) in the relationship between early sibling co-socialization and aversion to incest.
  • To test the hypothesis that a sensitive period exists for the effects of early co-socialization on sexual aversion.

Main Methods:

  • The study drew on traditional psychological research and parental investment theory.
  • Hypotheses were formulated regarding the impact of age difference with sisters and MPA status on incest aversion.
  • Results were analyzed to determine the significance of these factors.

Main Results:

  • The hypothesis was corroborated, indicating a significant effect.
  • For males without maternal perinatal association (MPA), a smaller age difference (under three years) with a sister predicted stronger aversion to sibling incest.
  • This finding supports the existence of a sensitive period and the importance of MPA.

Conclusions:

  • The findings suggest a sensitive period during development where early co-socialization significantly influences sexual aversion.
  • Maternal perinatal association (MPA) plays a crucial role in this process.
  • Cross-cultural studies are recommended for further validation of the hypothesis.