wk 11 sp Flashcards

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1
Q

Taste (_____) and smell (______) are both ________

A

gustation

olfaction

chemosenses

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1
Q

what causes sweet taste

A

sugars (fructose, glucose..)

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2
Q

what causes sour taste

A

all acids

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3
Q

what causes bitter taste

A

no unique chemical class, coffee, quinine …

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4
Q

what causes umami taste

A

(savoury taste)
mono sodium glutamate

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5
Q

2 routes of smell

A
  1. Orthonasal = via inhalation
  2. Retronasal = during chewing or swallowing
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6
Q

how many diff types of olfactory receptors

A

350

able to discriminate a large number of smells

receptors of similar type project to same glomelurus and then to brain

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7
Q

the Proust effect

why does this occour

A

vivid memories brought back by particular smells

Close connection between smell and Limbic system (emotion)

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8
Q

Other influences on taste

A
  • Texture
  • Pain
  • Sound
  • Vision
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9
Q

Multisensory stimulus

A

generates multiple independent energies, which are simultaneously detectable by different types of sensory receptors

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10
Q

Single neurone may respond to
more than one modality e.g. orbitofrontal cortex

A

taste and smell

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11
Q

Single neurone may respond to
more than one modality e.g.
Posterior parietal cortex

A

touch, vision, audition

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12
Q

kinaesthesia

A

sense of movement

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13
Q

Synaesthesia

A

Stimulation of a particular type which always
leads to another perceptual experience
e.g. seeing coloured letters
tasting shapes
Approximately 1 in 200 people

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