Suppose a Particular Neurotransmitter Causes an IPSP in Postsynaptic Cell

question 22

Multiple Choice

Suppose a particular neurotransmitter causes an IPSP in postsynaptic cell X and an EPSP in postsynaptic cell Y. A likely explanation is that

• A) the threshold value in the postsynaptic membrane is different for cell X and cell Y.
• B) the axon of cell X is myelinated, but that of cell Y is not.
• C) only cell Y produces an enzyme that terminates the activity of the neurotransmitter.
• D) cells X and Y express different receptor molecules for this particular neurotransmitter.

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Definitions:

Type I Errors

Mistakes made by falsely rejecting the null hypothesis when it is in fact true; also known as false positives.

Familywise Error

The overall likelihood that a Type I error (incorrect rejection of a true null hypothesis) will occur across a set of related hypotheses.

Type I Error

Error that occurs when the null hypothesis is true but the decision is made to reject the null hypothesis.

Probability

Likelihood of occurrence of a particular outcome of an event given all possible outcomes.