PSY 1010 Chapter Notes - Chapter 5: Amnesia, Fluoxetine, Neuroplasticity

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30-50% of pregnancies end during this stage, without any recognition that the pregnancy occurred. Heartbeat is detectable between 8 and 12 weeks. Ears are connected to the brain by about 18 weeks. Response to sound occurs at 26 weeks. May be influenced by chemicals in amniotic fluid. Children are not born blind, but their vision does most of its development after birth. Maternal nutrition - schizophrenia and antisocial personality disorder. Teratogens - substances that interfere with development and can cause birth defects. Fetal alcohol spectrum disorder (fasd) - affects about 1% of live births in the. Five major senses develop at different rates (hearing vs vision) Pruning - degradation of synapses and dying off of neurons that are not strengthened by experience. Rate of brain growth slows down after age six, then more after adolescence. Brain growth does, however, continue throughout the lifespan. Neglect can be detrimental to brain development.

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