Relative to Neurons Using Other Neurochemicals, Serotonergic Neurons

question 139

Multiple Choice

 Relative to neurons using other neurochemicals, serotonergic neurons

• A) are quite numerous.
• B) are surprisingly few in number.
• C) project to very limited parts of the brain.
• D) do not have different receptor subtypes.

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Definitions:

Null Hypothesis

This hypothesis posits that there is no effect or no significant difference between specified populations.

Directional

Pertaining to a hypothesis or research that specifies the expected direction of the relationship between variables.

Non-directional

Pertains to hypothesis tests that do not specify a direction of difference or relationship, thus considering both possible outcomes.

Alternative Hypothesis

A statistical hypothesis that proposes a difference or effect, in contrast to the null hypothesis.