OTHER SENSORY SYSTEMS
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Questions and Answers

What is the approximate sensitivity of human hearing under optimum conditions?

  • One-twentieth the diameter of an atom (correct)
  • One-thirtieth the diameter of an atom
  • One-fifth the diameter of an atom
  • One-tenth the diameter of an atom

How small a difference can humans detect between two sounds?

  • 1/10 the interval between two piano notes
  • 1/25 the interval between two piano notes
  • 1/20 the interval between two piano notes
  • 1/30 the interval between two piano notes (correct)

What aspect of sound waves is related to intensity?

  • Amplitude (correct)
  • Pitch
  • Hertz
  • Frequency

In physics and psychology, what are sound waves?

<p>Vibrations in air, water, or other media (A)</p> Signup and view all the answers

What is pitch related to?

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

How do humans typically attend to hearing according to the text?

<p>To extract useful information (C)</p> Signup and view all the answers

What is the function of taste receptors?

<p>Convert chemical stimuli into taste sensations (A)</p> Signup and view all the answers

How many taste buds does an average person contain?

<p>2,000 to 10,000 (C)</p> Signup and view all the answers

What can happen if the chorda tympani is anesthetized according to the text?

<p>Leads to the loss of taste in the anterior part of the tongue (A)</p> Signup and view all the answers

Which region of the brain is NOT mentioned as being involved in taste coding?

<p>Prefrontal cortex (D)</p> Signup and view all the answers

What is a possible consequence of losing taste perception in the anterior part of the tongue?

<p>Taste 'phantoms' (A)</p> Signup and view all the answers

Which nerve is involved in transmitting taste information to various brain regions?

<p>Chorda tympani (D)</p> Signup and view all the answers

What brain areas respond to the pleasantness of sensations?

<p>Cingulate gyrus and insular cortex (C)</p> Signup and view all the answers

Which type of axons can convey emotional aspects of touch even without conscious sensation?

<p>Unmyelinated axons (D)</p> Signup and view all the answers

What is the primary somatosensory cortex crucial for?

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

Which type of axons carry pain information and conduct impulses relatively slowly?

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

What happens when there is damage to myelinated somatosensory axons below the nose?

<p>Impair conscious touch perception while retaining emotional aspects (C)</p> Signup and view all the answers

What is closely linked to pain according to the text?

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

What role do pheromones play in human interactions based on the text?

<p>They play a subtle role in hormonal responses and behavioral cues. (D)</p> Signup and view all the answers

What phenomenon is described as the stimulation of one sense leading to the perception of another?

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

What does the occurrence of synesthesia in families often alongside absolute pitch abilities suggest?

<p>Genetic factors may influence the development of synesthesia. (A)</p> Signup and view all the answers

What is a characteristic of synesthetic perceptions based on the text?

<p>They align with misinterpretations and occur in the cerebral cortex. (B)</p> Signup and view all the answers

What can trigger synesthetic experiences according to the text?

<p>Seeing a word that triggers a color before its actual recall. (C)</p> Signup and view all the answers

How do synesthetic colors extend beyond sensory limitations as mentioned in the text?

<p>By being experienced by individuals with color vision deficiency. (C)</p> Signup and view all the answers

Based on the text, what is a limitation of the Frequency Theory for explaining how we hear high frequencies?

<p>Neurons cannot fire at frequencies higher than 1000 Hz. (A)</p> Signup and view all the answers

What is the role of the basilar membrane in the Current Theory of hearing?

<p>Varying in stiffness to identify pitch. (C)</p> Signup and view all the answers

How does the text describe the relationship between sound waves and action potentials in the Current Theory?

<p>Phase-locking action potentials to the sound wave peaks. (A)</p> Signup and view all the answers

What is the Volley Principle of Pitch Discrimination as discussed in the text?

<p>The auditory nerve produces volleys of impulses up to about 4000 Hz. (D)</p> Signup and view all the answers

In the context of hearing high frequencies, what challenge arises according to Volley Principle of Pitch Discrimination?

<p>Staggered volleys of impulses struggle to match sound wave pace. (C)</p> Signup and view all the answers

How does the text describe the mechanism for hearing still higher frequencies beyond 4000 Hz?

<p>Involving a varying basilar membrane at its base. (D)</p> Signup and view all the answers

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