Which action will produce a hyperpolarization of a neuron?
a. applying a negative charge inside the neuron with a microelectrode
b. applying a positive charge inside the neuron with a microelectrode
c. increasing the membrane's permeability to sodium
d. decreasing the membrane's permeability to potassium
a
You might also like to view...
Ron and Jon are identical twins, but only Jon shows the symptoms of schizophrenia. Brain imaging techniques are most likely to show that Jon has ____
a. more brain tissue than Ron b. smaller than normal ventricles c. higher cerebral glucose metabolism d. ventricle enlargement
In his job as a(n) ____________________, Mark conducts experiments in an attempt to discover the basic principles of behavior and mind
Fill in the blank(s) with correct word
In response to stressful events, the amygdala a. remains silent
b. experiences long-term excitation. c. experiences long-term inhibition d. experiences enhanced activity followed by a refractory period.
Your parents have been advised to give your little brother methylphenidate (Ritalin) as treatment for attention deficit/hyperactivity disorder (ADHD). What advice would you give them? a. Don't bother. The drug rarely produces any improvements in behavior
b. Make sure the diagnosis is correct, as Ritalin has no effect on behavior unless you really have ADHD. c. Proceed with caution. Ritalin can improve behavior, but it also produces significant side effects. d. Try giving him a cup of coffee first, and if he reacts well to that, he probably will respond well to Ritalin, too.