Author Question: Describe how the auditory cortex parallels the visual cortex. What will be an ideal ... (Read 69 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?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

For a complete list of videos, visit our video library