Tolerance for a Psychoactive Substance Refers to

question 38

Multiple Choice

Tolerance for a psychoactive substance refers to

• A) withdrawal.
• B) psychological dependence.
• C) the ability to consume several drugs at the same time with limited adverse effects.
• D) requiring more of a substance to achieve the same effect that lower doses used to achieve.

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Definitions:

Membrane-bound Receptor Model

A theory describing how specific proteins located on the cell membrane bind to external molecules, triggering a response inside the cell.

Neuropeptide

A type of molecule used by neurons to communicate with each other, involving in various brain functions such as analgesia, reward, food intake, metabolism, reproduction, social behaviors, learning, and memory.

Neurons

Nerve cells that transmit electrical signals throughout the body, integral to the functioning of the nervous system.

Presynaptic Terminal

Enlarged axon terminal or terminal bouton.