Why Is Losing Myelin in Multiple Sclerosis So Devastating

question 114

Multiple Choice

Why is losing myelin in multiple sclerosis so devastating?

• A) A lack of sodium channels in the spaces previously occupied by the myelin halts action potentials.
• B) The loss of myelin causes action potentials to move slower than they should.
• C) The loss of myelin allows too much sodium to enter, overwhelming the sodium-potassium pump.
• D) The loss of myelin allows too much potassium to enter, overwhelming the sodium-potassium pump.

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Definitions:

Internal-Reinforcement Schedule

A strategy of self-management where individuals control their own rewards or punishments to modify behavior.

External-Reinforcement Schedule

This involves the regulation of behavior based on rewards or punishments administered from an outside source, used in various behavioral conditioning frameworks.

Positive Punishment

Adding an undesirable stimulus to decrease a behavior.

Negative Punishment

A behavior modification technique involving the removal of a desirable stimulus to decrease the probability of an undesirable behavior being repeated.