Other questions in this quiz

2. What is a teratogen?

  • Substances that exert an adverse influence on development e.g drugs, smoking, disease and maternal stress
  • A genetic mutation in the mother which causes future disabilitys and birth complications in the infant
  • Substances that exert a positive influence on development e.g enriched environment, nutrition and exercise
  • A chemical imbalance in the pregnant body which goes on to affect the infant

3. What is apoptosis and why does it occur?

  • The formation of sulci and gyri to accommodate more neurons
  • Programmed cell death of poorly stimulated neurons; increases efficiency of functioning
  • Increase of brain surface; to increase cell stimulation
  • Buildings of connections between synapses to 'finely tune' the brains 'circuitry'

4. What is an early behavioural reflex?

  • An involuntary reaction to external stimuli
  • A type of infant feeding behaviour
  • A voluntary reaction to a stimuli
  • A movement to attract attention

5. What effects does the environment have on the prenatal brain?

  • The PN brain is especially sensitive to positive environmental influences affecting cortical thickness
  • The environment has not shown to have an effect on the PN brain
  • The PN brain is sensitive to negative and positive influences, with cortical thickness differing according to the environment
  • The PN brain is especially sensitive to negative environmental influences affecting cortical thickness


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