Olfactory Perception and Anosmia

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Questions and Answers

What is the estimated percentage of Parkinson's disease patients who present with olfactory dysfunction?

  • 96% (correct)
  • 40%
  • 75%
  • 90%

What is the average lifespan of a taste receptor?

  • 30 to 40 days
  • 10 to 14 days (correct)
  • 5 to 7 days
  • 20 to 28 days

What is the primary mechanism of saltiness receptors?

  • Responding to plant alkaloids
  • Allowing sodium ions to cross their cell membrane (correct)
  • Responding to glutamate
  • Responding to sugars

What is the term used to describe the sensation of flavour, which is primarily influenced by smell?

<p>Retronasal route (B)</p> Signup and view all the answers

What is the potential consequence of anosmia in adults?

<p>Increased risk of mortality (C)</p> Signup and view all the answers

What is the term used to describe the phenomenon where people eventually feel full and satisfied with a specific food, but may still have room for other foods?

<p>Sensory-specific satiety (B)</p> Signup and view all the answers

What is the reason behind specific anosmia?

<p>A specific olfactory gene is not present or not functioning (A)</p> Signup and view all the answers

What is the effect of pleasant and unpleasant odours on attractiveness ratings of faces?

<p>Pleasant odours increase attractiveness ratings, while unpleasant odours decrease them (D)</p> Signup and view all the answers

What is the role of visual information in odour perception?

<p>Visual information enhances odour perception (B)</p> Signup and view all the answers

What is the result of products having congruent scents?

<p>Products with congruent scents are evaluated more positively (D)</p> Signup and view all the answers

What is a characteristic of the sense of smell?

<p>The sense of smell can show very obvious adaptation effects (C)</p> Signup and view all the answers

Which nerve is stimulated by certain odor components, producing physical odor sensations?

<p>Trigeminal nerve (A)</p> Signup and view all the answers

Which part of the brain is directly connected to the olfactory bulb and plays a role in emotional responses to odors?

<p>Amygdala (B)</p> Signup and view all the answers

What is unique about the olfactory pathway compared to other senses?

<p>It bypasses the thalamus (C)</p> Signup and view all the answers

What type of memories are often evoked by odors, according to research?

<p>Emotional, vivid, specific, rare, and old (A)</p> Signup and view all the answers

What is the term for a condition characterized by the loss of the sense of smell?

<p>Anosmia (A)</p> Signup and view all the answers

Which region of the brain is involved in the processing of olfactory information and is also involved in emotional and decision-making processes?

<p>Orbitofrontal cortex (C)</p> Signup and view all the answers

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