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  2. Neoteny - Wikipedia

    en.wikipedia.org/wiki/Neoteny

    In progenesis or paedogenesis, sexual development is accelerated. [7] Both neoteny and progenesis result in paedomorphism [8] (as having the form typical of children) or paedomorphosis [9] (changing towards forms typical of children), a type of heterochrony. [10] It is the retention in adults of traits previously seen only in the young.

  3. Puberty - Wikipedia

    en.wikipedia.org/wiki/Puberty

    Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual reproduction.It is initiated by hormonal signals from the brain to the gonads: the ovaries in a female, the testicles in a male.

  4. Three mountain problem - Wikipedia

    en.wikipedia.org/wiki/Three_mountain_problem

    The results showed that children as young as three-years-old were able to perform well, and they showed evidence of perspective-taking, [10] the ability to understand a situation from an alternate point of view. Hence, evaluation of Piaget's Three Mountain Problem has shown that using objects more familiar to the child and making the task less ...

  5. Child development stages - Wikipedia

    en.wikipedia.org/wiki/Child_development_stages

    Physical development. Typically grows between 1 and 1.5 inches (2.5 and 3.8 cm) and gains about 2 pounds (910 g). [20] Motor development. Hands kept in tight fists. [21] Equal movement of arms and legs on both sides. [21] Able to briefly hold up head when in prone position. [21] Arm thrusts are jerky. [22] Brings hands close to eyes and mouth. [22]

  6. Erikson's stages of psychosocial development - Wikipedia

    en.wikipedia.org/wiki/Erikson's_stages_of...

    The development of courage and independence are what set preschoolers, ages three to six years of age, apart from other age groups. Young children in this category face the psychological crisis of initiative versus guilt. This includes learning how to face complexities of planning and developing a sense of judgment. [20]

  7. Sex differences in cognition - Wikipedia

    en.wikipedia.org/wiki/Sex_differences_in_cognition

    For example, a study conducted by Lowe, Mayfield, and Reynolds (2003) examined sex differences among children and adolescents on various short-term memory measures. This study included 1,279 children and adolescents, 637 males and 642 females, between the ages of 5 and 19.

  8. List of age-related terms with negative connotations - Wikipedia

    en.wikipedia.org/wiki/List_of_age-related_terms...

    Dirty old man: [16] [17] [18] An old pervert, specifically referring to older men who make unwanted sexual advances or remarks, or who often engage in sex-related activities. The term suggests that it is inappropriate and unnatural for older men to be sexually active. The term, other than being ageist, has misandrist connotations in the West.

  9. Piaget's theory of cognitive development - Wikipedia

    en.wikipedia.org/wiki/Piaget's_theory_of...

    For example, they can logically arrange a series of different-sized sticks in order by length. Younger children not yet in the concrete stage approach a similar task in a haphazard way. These new cognitive skills increase the child's understanding of the physical world. However, according to Piaget, they still cannot think in abstract ways.