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Lecture 10

PSY 1101 Lecture Notes - Lecture 10: Hypnosis, Synesthesia, Umami

Course Code
PSY 1101
Gary Capstick

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Psych Lecture 10
Friday October 10, 2014
I. Taste
A) Basic taste sensations
i) Sweet
ii) Sour
iii) Bitter
iv) Salty
B) Research confirmed receptors for these 4 and another taste sensation
i) Umami
a) Savory/appetizing
b) Meaty
c) More subtle, blends well with other taste sensations
d) Comes from things that contain glutamate, which indicated the
presence of protein
e) Meats, cheeses, soy sauce, tomatoes, grains, beans, MSG
C) Survival Functions of Basic Tastes
i) Sweet
a) Energy source
ii) Salty
a) Sodium essential to physiological processes
iii) Sour
a) Potentially toxic acid
iv) Bitter
a) Potential poisons
v) Umami
a) Proteins to grow and repair tissue
D) Taste is a chemical sense
i) You have bumps all over your tongue, they are not however, your
taste buds
a) They are papillae, and they have grooves around them to allow
the saliva in your mouth to fall into it, which is where the taste
buds are.
b) Taste buds are actually pores, and inside of the pore is a bunch
of taste receptor cells.
c) When these receptor cells come into contact with the chemical
they are meant to come into contact with, an action potential
ii) Each papillae has about 200 taste buds inside
iii) Each taste bud aptures molecules from the food
iv) Each taste bud pore has 50-100 receptor cell each with cilia that
sense food molecules
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