an optimal period for development of specific physical or cognitive

An optimal period for development of specific

  • Baylor University
  • PSY 3341
  • Test Prep
  • mauimom
  • 17
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an optimal period for development of specific physical or cognitivecapabilitiesexposure to certain environmental stimuli or experiences influences developmentimpact can be positive or negative12.Teratogens (p. 63-66 & lecture). Any disease, drug, or other environmental agent that can harm a developing fetus. Effects of a teratogen depend when exposure occursNot all embryo/fetuses affected equallyHigher/longer the exposure, the greater damageDifferent teratogens may cause the same effectsThe same teratogen may cause different effects, depending on timing13.Drugs: alcohol, FAS (video), nicotine, cocaine, thalidomide. 14.Infectious diseases: rubella, syphilis (know specific effects at specific times), HIV.Environmental hazards: radiation (video). Folic acid (p. 67). Rubella: (German measles) is one disease that can cause prenatal defects. Women who plan to have children should have a blood test before they become pregnant to determine whether they are immune to the diseaseSyphilis: (a sexually transmitted infection) is more damaging later in prenatal development—four months or more after conception. When syphilis is
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present at birth, problems can develop in the central nervous system and gastrointestinal tract; most damaging in middle to late stagesHIV: AIDS is a sexually transmitted infection that is caused by the human immunodeficiency virus (HIV), which destroys the body's immune system. A mothercan infect her offspring with HIV/AIDS in three ways: (1) across the placenta during gestation, (2) through contact with maternal blood or fluids during delivery, and (3) through breast feedingFolic acid: a B-complex vitamin. Also, as indicated earlier, lack of folic acid is related to neural tube defects in offspring 15.For teratogens & timing: lecture & see also Fig. 13, p 64). 17.Distinguish between low birth weight, preterm and small for date infants (p. 74).
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