L33 Psych 321 Lecture Notes - Lecture 9: Optic Nerve, Interposition, Critical Period
5 Mar 2019
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Methodology: preferences gazing and reaching, novelty, habituation paradigm, relies on our preferences and responses to novelty, something that we have at birth, dishabituation orienting response to novelty. Happens right after a novel stimulus is presented: can measure habituation by has rate, cognitive processing speed is correlated to habituation rate. Basic sensory and perceptual processes: smell, taste & touch, smell. Very keen smell at birth: taste. Facial reactions and reactions to mother"s diet: touch. Reflexes and crying (cry when under pain or rubbed with a rough surface: hearing, auditory threshold. Present quiet sound and check to see when they respond. Not good at high and low pitches, but are very good at hearing voice-pitched sounds: object localization. Technique reaching for rattle in dark room. Children are very good at this by 7 months: hearing impairment. May have some effect on acquiring language. Babies born deaf usually inherit it; often get meningitis: seeing, brain development.
