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</p> Signup and view all the answers

    What is the potential consequence of anosmia in adults?

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

    What is the role of visual information in odour perception?

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

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

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

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

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

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