Author Question: Describe how the auditory cortex parallels the visual cortex. What will be an ideal ... (Read 59 times)

rayancarla1

  • Hero Member
  • *****
  • Posts: 571
Describe how the auditory cortex parallels the visual cortex.
 
  What will be an ideal response?

Question 2

The most common side effect of electroconvulsive shock therapy is ____.
 
  a. dry mouth and blurred vision
 b. damage to the frontal lobes
 c. memory loss
 d. high probability of broken bones during the treatment



tdewitt

  • Sr. Member
  • ****
  • Posts: 318
Answer to Question 1

The organization of the auditory cortex strongly parallels that of the visual cortex. For example, just as the visual system has a what pathway and a where pathway, the auditory system has a what pathway sensitive to patterns of sound in the anterior temporal cortex, and a where pathway sensitive to sound location in the posterior temporal cortex and the parietal cortex. Just as patients with damage in area MT become motion blind, patients with damage in parts of the superior temporal cortex become motion deaf. They hear sounds, but they do not detect that a source of a sound is moving.

Just as the visual cortex is active during visual imagery, area A1 responds to imagined sounds as well as real ones. It becomes active when people view short silent videos that suggest soundsuch as someone playing a piano, or a glass vase shattering on the ground. In one study, people listened to several familiar and unfamiliar songs. At various points, parts of each song were replaced by 3- to 5-second gaps. When people were listening to familiar songs, they reported that they heard in their heads the notes or words that belonged in the gaps. That experience was accompanied by activity in area A1 . During similar gaps in the unfamiliar songs, they did not hear anything in their heads, and area A1 showed no response.

Also like the visual system, development of the auditory system depends on experience. Just as rearing an animal in the dark impairs visual development, rearing one in constant noise impairs auditory development. (In constant noise, it is difficult to identify and learn about individual sounds.) In people who are deaf from birth, the axons leading from the auditory cortex develop less than in other people.

Answer to Question 2

c



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

For a complete list of videos, visit our video library