Developmental Psychology: The Lifelong Work of Growing Up
From the womb to old age: what babies already know, how children think and talk, how morals and identity form, and how we change as we age.
Developmental Psychology · 50 questions
Try 3 questions
1. In a classic study, newborns could change their sucking rhythm to hear different recordings. Which voice did they work hardest to hear?
- Any adult man's voice
- Their own mother's voice
- An unfamiliar woman's voice
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Answer: Their own mother's voice
Hearing works before birth, so newborns already recognize and prefer the voice they heard through the womb.
2. Why can the same drug cause major birth defects in week 5 of pregnancy but much less harm in month 8?
- Late fetuses fully break down drugs
- Most organs form in the early weeks
- The placenta blocks all drugs later on
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Answer: Most organs form in the early weeks
The embryonic period is when organs are laid down, so it is the sensitive period for structural damage from teratogens.
3. Has any amount of alcohol been established as safe to drink during pregnancy?
- Yes, about one glass a day is safe
- No safe amount has been established
- Yes, after the first three months
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Answer: No safe amount has been established
Alcohol crosses the placenta and can cause fetal alcohol spectrum disorders; health authorities advise that no level is known to be safe.
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