EXP 3422C Study Guide - Final Guide: Konrad Lorenz, Monocular Deprivation, Prefrontal Cortex
Document Summary
Exp exam 4 study guide: development spectrum at birth, altricial far end of spectrum; helpless, neurodevelopmentally immature, blind, deaf. Humans are helpless but have functioning sensory systems: precocial other end of spectrum; advanced, could move with the herd . Needs to happen at or before 24 months in humans: experience-dependent developmental plasticity for language learning , not so much about vocab, infant brains can detect subtle differences in language sounds. With native language experience, that capacity is maintained: without experience, capacity to distinguish closely related phonemes is lost by. 10-12 months: neurogenesis the birth of neurons. Peaks at 25 weeks (2nd trimester in human development: apoptosis programmed cell death, a critical part of development. 1/3 of neurons die by this process during childhood. Different from cell death due to injury or toxic exposure: synaptogenesis production of synapses on neurons. Peak prefrontal cortex is 6 years old: synaptic pruning activity dependent loss of synapses.
