1. Why is the pregnant person most sensitive to radiation at this time?
- This is the critical period of prenatal brain development, with neural proliferation and migration, migration not occuring correctly has serious effects
- As the infants developing brain is at peak plasticity
- As this is the period in which synaptogenesis occurs
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Other questions in this quiz
2. What did research by Perry & Pollard (1998) show?
- The children who suffered severe global neglect had much smaller frontal occipital circumferences and growth/organisation than conrtols
- The children who suffered severe global neglect had larger brains than controls
- The children who suffered severe global neglect had much larger frontal occipital circumferences and growth/organisation than conrtols
- The children who suffered severe global neglect had smaller brains than controls
3. What is the darwinian reflex?
- When the palm of a babies hand is stroked, they make a strong fist and can be raised to standing if grasped
- When a baby is dropped/hears a loud noise, they extend limbs and fingers whilst drawing their head back as a protective reflex
- When a baby is held with their feet barely touching a surface, they will make stepping motions
- When a baby will grab anything that comes in close proximity to their face, a protective reflex
4. What is the second stage of brain development?
- Neurogenesis and cell migration
- Folding of the neural plate to form the neural tube
- The formation of the hindbrain
- Cell insulation
5. 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'