My Notes – Early Childhood Education Diploma » Blog Archive » Brain and Nervous System Development – Part 1

Softcopy notes were give, I just copy paste the key points here.

Frontal Lobe: reasoning, planning, parts of speech, movement, emotions, and problem solving

Parietal Lobe: movement, orientation, recognition, perception of stimuli

Occipital Lobe: visual processing

Temporal Lobe: perception and recognition of auditory stimuli, memory, and speech

At approximately 20 weeks gestation:

  • Brain has near the same number of neurons as full term infant
  • Development of neurons slows and development of synapses or connections among neurons (synaptogenesis)
  • At approximately 30-31 weeks cerebral cortex begins forming convolutions or folds
  • At birth the neonate’s brain has the appearance of the adult brain
  • Establishment of myelin sheath (myelination) continues far into childhood and adolescence
  • Myelin sheath insulates the axon and increases speed and efficiency of synaptic impulse
  • Development of motor function occurs as myelin sheath develops in the motor areas of the brain
  • Pruning occurs as unused neurons die
  • Pruning begins during fetal development and continues across the lifespan
  • Leads to diversion of nutrients to regions more used

Method of Habituation to Study Sensation and Perception

Steps in habituation studies:

  • Baseline data are collected with neutral stimulus
  • Introduction of novel stimulus
  • Change in response from baseline is recorded
  • Over repeated presentation of stimulus systems return to baseline
  • Neutral stimulus is reintroduced
  • Original novel stimulus is reintroduced
This entry was posted on Saturday, May 15th, 2010 at 11:38 am and is filed under Development of Young Children. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.


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