Injection of an Animal with Amphetamine Leads to Heart Rate

question 151

Multiple Choice

Injection of an animal with amphetamine leads to heart rate acceleration. With repeated injections, however, the injection procedure alone (i.e., when an inert substance is injected) can elicit heart rate acceleration. In this situation, which of the following is true?

• A) The injection procedure is the CS.
• B) Heart rate acceleration is both the UR and the CR.
• C) Amphetamine is the US.
• D) All of the above answers are correct.

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Definitions:

Neuron

A neuron is a specialized cell transmitting nerve impulses; a nerve cell, the fundamental unit of the nervous system responsible for receiving and sending electrical signals throughout the body.

Cerebral Spinal Fluid

A clear, colorless body fluid found in the brain and spinal cord, which acts as a cushion for the brain's cortex, providing basic mechanical and immunological protection to the brain inside the skull.

Glial Cells

Non-neuronal cells in the central and peripheral nervous systems that support and protect neurons, playing crucial roles in brain function.

Cushioning Effect

A psychological or physical phenomenon where a buffer exists or is created to lessen the impact of a stressful or negative event.