Lecture_3_Sensation

Lecture_3_Sensation - Sensory & Motor Developement P...

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Click to edit Master subtitle style 2/2/11 Sensory & Motor Developement Part 1: Sensory Development
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2/2/11 What is the perceptual world like in first six months of life? Newborn baby – no interaction whatsoever 4 week old (1 month) baby – slight interaction with mother during breast feeding, and also some response to when they poop. 6 month old baby – engaged and interactive with the world around it. These babies do very little. Barely reach for objects at 6 months. How can we tell what their perceptual world is like? Chemical senses: smell and taste “Cognitive” senses: Hearing & Vision
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2/2/11 Smell Response to chemical composition of gases Adults can discriminate up to 10,000 different chemical substances!
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2/2/11 Taste Adult taste organized around 4 dimensions Bitter Sour Salty Sweet Development has pretty much finished in adults but can be teaked if you
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2/2/11 Smell and taste as gateways to memories “When from a long-distant past nothing subsists, after the people are dead, after the things are broken and scattered, taste and smell alone, more fragile but more enduring, more unsubstantial, more persistent, more faithful, remain poised a long time, like souls, remembering, waiting, hoping, amid the ruins of all the rest; and bear unflinchingly, in the tiny and almost impalpable drop of their essence, the vast structure of recollection.” -- Marcel Proust
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Facial reactions to sweet, sour and bitter tastes in 2-hour olds. Do they respond by facial expressions to respond To taste. Someone put something in mouth. .. Annoyin g... Aaah but it’s sweet. ..Nice! Taste in
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Lecture_3_Sensation - Sensory & Motor Developement P...

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