Regarding the Experiments Using Intracranial Self-Stimulation (ICS) of the Pleasure

question 146

Multiple Choice

Regarding the experiments using intracranial self-stimulation (ICS) of the pleasure centers, which of the following statements is FALSE?

• A)When rats self-administer nicotine, they are even more likely to engage in ICS because nicotine further increases the sensitivity of the pleasure pathways.
• B)After the rats had pressed the ICS lever to exhaustion, they were less likely to press the lever again once they were revived.
• C)Humans who have had direct brain stimulation report feeling intense pleasure that is better than food, water, sex, or drugs.
• D)Intracranial self-stimulation (ICS) is considered to be a primary reinforcer.

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Definitions:

Hydrocephaly

A condition characterized by excessive accumulation of cerebrospinal fluid in the brain's ventricles, leading to increased intracranial pressure and head enlargement.

Cerebrospinal Fluid

A clear, colorless body fluid found in the brain and spinal cord, providing cushioning and serving various functions in the central nervous system.

Ependymal Cells

Glial cells lining the ventricles of the brain and the central canal of the spinal cord, involved in the production and circulation of cerebrospinal fluid.

Satellite Cells

Specialized cells located in the muscle that play a role in the repair and regeneration of damaged skeletal muscle tissue.