Physical Development_BB2

Physical Development_BB2 - PHYSICAL DEVELOPMENT Nicole...

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Nicole Zarrett, Ph.D. Psyc521H Fall2010 PHYSICAL DEVELOPMENT
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Developmental Contextualism/ Holistic Interactionism Embeddedness: multiple “layers” or levels Dynamic Interactionism: biological processes are NOT deterministic Plasticity (Relative) : Potential for CHANGE Development and systematic change have constraints imposed from both endogenous and exogenous limitations. “The whole is greater than the sum of its parts”
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Puberty is Affected by Context Timing of physical changes in adolescence varies by Regions of the world Socioeconomic class Ethnic group Historical era Example: Menarche (first menstruation) U.S. average 12 to 13 years Lumi (New Guinea) average > 18 years
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Definitions Puberty-period of rapid development during which individuals become capable of reproduction (universal) PUBERTY is a process of change and the product of a complex interaction among genotype, brain-behavior, and context
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Puberty: Five Chief Physical Manifestations Growth spurt Further development of the gonads Development of secondary sex characteristics Changes in body composition Changes in circulation and respiration
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The Endocrine System No new hormones are produced and no new bodily systems develop at puberty Instead, it is a gradual system that begins at conception.
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Process of Puberty: Definitions The Endocrine System : circulates, regulates levels of hormones in the body Hormones: Highly specialized substances secreted by endocrine glands
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The Endocrine System: A Feedback Loop Feedback loop: HPA and HPG Axis H ypothalamus P ituitary gland, A drenal and G onads Gonads release androgens and estrogens
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Hypothalamus Pituitary Gland Gonads Androgens Estrogens
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Physical Development_BB2 - PHYSICAL DEVELOPMENT Nicole...

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