Adolescence cog and phsyical dev

Adolescence cog and phsyical dev -...

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Physical and Cognitive Development in Adolescence Puberty - What is it? The change in child’s body to body capable of reproduction (multi- year process)  Sexual maturation becomes evident. Greatest period of sexual differentiation since intrauterine (prenatal) life. Onset is different for girls and boys 0. Girls begin growth spurt at about 10.5 years 1. Boys begin growth spurt at about 12.5 years Puberty in Girls Myth: the first thing that happens to a girl is her period- wrong! That happens  midway through Girls: range of start (8-13 years)- precocious puberty is more common now like 5 and 6  year olds are getting pubic hair and breast development  2. Early signs: 0. Breast development 1. Growth spurt 2. Pubic hair development 3. Menarche (12.8 years)- first period is coming earlier and earlier  today than it has in the past- why? Some theories think it is  hormones in food (suspicion no link) or vaccinations or the constant  viewing of sexualized images on television stimulating reproductive  growth. The most accepted theory is father absence and maternal  stress that girls are maturing earlier as an adaptive strategy like the  analogy with lions it is adaptive when there is stress to grow up and  get out.  3. Generally no mature ova are produced Puberty in Boys Boys: range of start (9.5-13.5 years)- the age isn’t changing like it is in girls  4. Early signs: 4. Enlargement of testes, penis 5. Pubic hair development 6. Growth spurt  5. Spermarche (around 13) (wet dream, nocturnal emission)  7. First ejaculation, although semen has few living sperm Psychological Impact of the Timing of Puberty
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Not necessarily a period of storm and stress. Best if it is on time with peers. There are gender differences in the impact of timing of puberty. Psychological Impact of Early puberty Girls 8. Below average in popularity 9. Withdrawn 10. Lacking in self-confidence 11. Stressed 12. Poor body image 13. At higher risk for eating disorders At risk for sexual experimentation 
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This note was uploaded on 02/21/2010 for the course PSYC 220 taught by Professor Merriwether during the Spring '08 term at Binghamton University.

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Adolescence cog and phsyical dev -...

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