« previous next »

Author Question: To see gradual variations in shading, we rely on cells that respond best to ___ but to see abrupt ... (Read 22 times)

mynx

  • Hero Member
  • *****
  • Posts: 555
on: Jun 22, 2018
To see gradual variations in shading, we rely on cells that respond best to ___ but to see abrupt changes in light versus dark, we rely on cells that respond best to ___.
 
  a. low frequency stimuli; sine wave gratings
  b. high frequency stimuli; low frequency stimuli
  c. sine wave gratings; Mach bands
  d. low frequency stimuli; high frequency stimuli

Question 2

During LTP, the first few pulses of glutamate:
 
  a. Dislodge the magnesium ions from the NMDA receptor
  b. Allow sodium and calcium ions to enter
  c. Increase the likelihood the neuron will fire, and increase the number and sensitivity of AMPA receptors
  d. All of the above


leahm14

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jun 22, 2018
Answer to Question 1

D

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

How plant cells take up and transform nitrate How plant cells take up and transform nitrate
Prokaryotic vs. Eukaryotic cells Prokaryotic vs. Eukaryotic cells
White blood cells White blood cells
cells cells
Periodic oscillations of the levels of glycolytic intermediates in yeast cells undergoing glycolysis Periodic oscillations of the levels of glycolytic intermediates in yeast cells undergoing glycolysis
Video: Nervous pathway to the Neuromuscular (NMJ)

For a complete list of videos, visit our video library