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Notes - Lecture 1 (January 13).docx

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University of Toronto Scarborough
Matthias Niemeier

NROC64H3SSensory and Motor SystemsLecture 1011312Introduction to Sensory and Motor SystemsKnowledge of the brain resembles earlier Europeans knowledge of AfricaSensory and motor coastlinesSensory transduction and sensory physiology for each of the sensory systems and models of sensory processing spinal and central mechanisms of motor controlSensory and motor systemssensorimotor systemsSensorimotor integration expeditions into the unchartered brainComplexityie 60000 oculomotor neurons1 output path of 100 billion neuronsSimple minds having a simple brain studying simple brains studying subsystems of complex brainsStudying sensorimotor systemsBrain made for sensorimotor transformationThe great end of life is not knowledge but actionTH HuxeleyEverything serves sensorimotor transformationsAutonomic circuitsMemoryCognitionsConsciousnessConscious and otherwise functional androids The Chemical SensesAnimals depend on chemical senses to identify nourishmentChemical sensation Oldest and most common sensory systemChemical sense Gustation olfaction chemoreceptors skin digestive system neck arteries hormones muscles etcTasteSaltiness sourness sweetness bitterness umamisavouryExamples correspondence bw chemistrySweetsugars and artificial sweetenersBitterions like K and Mg quinine caffeineAdvantagesurvivalPoisonous substanceoften bitterSet of receptors for poisonous substance lumped together and though bitterSteps to distinguish the countless unique flavours of foodEach food activates different taste receptorsDistinctive smellOther sensory modalitiesOrgans of Taste Tongue palate pharynx epiglottisAreas of sensitivity on tongueTip of tongue SweetnessBack of tongue Bitterness
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