Chemical senses - smell and taste

Psy280: Perception Prof. Anderson Department of Psychology Chemical senses

Chemical senses: Your are what you eat (smell) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Comparative taste ,[object Object],Moth antennae Fly “feet”

In good and bad taste ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Taste in infancy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Anatomy of taste: Papillae ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Anatomy of taste: The bud ,[object Object],[object Object],[object Object],[object Object],[object Object]

Taste sensory transduction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Taste pathway ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Insular cortex and disgust ,[object Object],[object Object],[object Object],[object Object],Disgust vs fear

Taste experience ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Neural code for taste: Specificity ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Neural code for taste: Specificity ,[object Object],[object Object],[object Object]

Problem with taste specificity coding ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Neural code for taste: Distributed coding ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Tastes differ ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Flavor = Taste+smell ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Like visual capture

Distal chemical sensing: Olfaction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Olfactory epithelium ,[object Object],[object Object],[object Object],[object Object],[object Object]

Nose hair: Olfactory cilia ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Smell antennae: Olfactory bulbs ,[object Object],[object Object],[object Object],Chemotaxis

How many receptor types are there? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mapping onto the bulb ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Distributed coding of smell ,[object Object],[object Object],[object Object],[object Object],[object Object]

Experience and identification of odors ,[object Object],[object Object],[object Object],[object Object],[object Object]

Of mice and men ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Rebuilding your neural nose: Olfactory neurogenesis ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What special about neural transmission in olfaction? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What’s the neural code for smell? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The hedonic primacy of olfaction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What makes a bad smell smell bad? ,[object Object],[object Object],[object Object]

The smell of attraction ,[object Object],[object Object],[object Object],[object Object]

Does the world smell different to each nostril? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Smell constancy: Little and big sniffs ,[object Object],[object Object],[object Object],[object Object],Magnitude estimation for odor strength equal

Olfactory subliminal perception: Pheromones ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Extrasensory perception: ESP ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Why is it possible? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Experiments on ESP: Ganzfeld research ,[object Object],[object Object],[object Object],[object Object],Target randomly chosen sender attempts to ‘psychically’ send target to receiver receiver reports imagery trees... buildings... clouds...

Experiments on ESP: Ganzfeld research At end of session… ,[object Object],[object Object],[object Object]

Results ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Problems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Magnetoreception ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Chemical senses - smell and taste

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Chemical senses - smell and taste