Cerebral Achromatopsia Case Study: Mr. I

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Questions and Answers

What is the term used to describe motion that is produced by a person or living organism?

  • Biological motion (correct)
  • Visual motion
  • Perceptual motion
  • Organic motion

What is the function of the corollary discharge signal (CDS) in motion perception?

  • Calculating motion by comparing images
  • Detecting depth perception
  • Creating a copy of the motor signal from the eyes (correct)
  • Activating neurons in the occipital lobe

Which brain area contains neurons that are selective for motion in specific directions?

  • Frontal cortex
  • Superior temporal sulcus (STS)
  • Occipital lobe
  • Middle temporal (MT) area (correct)

What is the term for the self-produced movement that occurs as objects appear to move past an observer?

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

Which of the following scenarios leads to the perception of motion according to the text?

<p>Moving object, stationary eyes (C)</p> Signup and view all the answers

What is the term for the concept where flow is more rapid close to the moving observer and slower further away?

<p>Gradient of flow (D)</p> Signup and view all the answers

What is the name of the condition Mr.I had after his car accident?

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

How does chromatic adaptation affect our perception of colors?

<p>Reduces sensitivity to specific wavelengths (B)</p> Signup and view all the answers

What is the effect of staring at a red field on our perception of other red objects?

<p>It reduces the saturation and brightness of other red objects (A)</p> Signup and view all the answers

Which condition results in motion blindness due to damage to the dorsal visual stream?

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

What phenomenon describes our ability to perceive a consistent color for an object despite changes in illumination?

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

What is the main function of mirror neurons?

<p>Encode how we perceive gestures, body movements, and mood (A)</p> Signup and view all the answers

In the study mentioned, when did the premotor area of monkeys activate?

<p>When Monkey watched the experimenter grasp food (A)</p> Signup and view all the answers

What is the main purpose of attention as a filter?

<p>To attend to what is important and avoid 'overload' (A)</p> Signup and view all the answers

What happens in inattentional blindness?

<p>Something is not perceived even when looking directly at it (B)</p> Signup and view all the answers

Which area of the brain is mentioned to have cells that function like mirror neurons?

<p>Parietal lobe (D)</p> Signup and view all the answers

What kind of expressions do mirror neurons help encode, based on the information provided?

<p>Facial expressions and body language (B)</p> Signup and view all the answers

What is the term used to describe the synchrony of the auditory nerve firing with the sound wave?

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

Why is it okay that some auditory nerve fibers 'miss' syncing up with the sound wave?

<p>There are many auditory nerve fibers available to respond (A)</p> Signup and view all the answers

How does the basilar membrane vibrate in response to different frequencies?

<p>Some parts vibrate more than others to specific frequencies (A)</p> Signup and view all the answers

What determines which part of the basilar membrane vibrates the most in response to sound frequency?

<p>The frequency of the sound (B)</p> Signup and view all the answers

Which part of the basilar membrane vibrates more with higher frequencies?

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

How does the cochlea act as a filter for different frequencies of sound?

<p>It filters frequencies such that higher frequencies cause vibration at the base and lower frequencies near the apex (D)</p> Signup and view all the answers

What is the main focus of focused attention meditations?

<p>Training attention by focusing on an object, breath, sound, or manta (B)</p> Signup and view all the answers

According to studies, how many days of meditation practice can increase attention and stress control?

<p>5 days (B)</p> Signup and view all the answers

Which brain area is associated with paying attention to faces?

<p>Fusiform face area (FFA) (A)</p> Signup and view all the answers

In the fMRI experiment described, what were participants instructed to do?

<p>Focus on the central display only (D)</p> Signup and view all the answers

What could researchers predict with 100% accuracy based on brain activity in V1?

<p>Participants' location (D)</p> Signup and view all the answers

What does the text suggest is a possible outcome of meditation practices?

<p>Enhanced functional connectivity in certain brain networks (B)</p> Signup and view all the answers

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