Leonard Is Addicted to Heroin, but Is Very Careful About

question 57

Multiple Choice

Leonard is addicted to heroin, but is very careful about overdosing.He always uses a specific amount and takes it only in his apartment.On Friday, he became desperate for the drug while visiting with another drug user.This was the first time he had used heroin outside his own apartment.He injected his normal "safe" dose of heroin but almost died of an overdose.According to the principles of classical conditioning what led to Leonard's condition?

• A)Leonard's friend switched his drugs in order to teach him not to use drugs by switching his unconditioned stimulus (US) with his conditioned stimulus (CS).
• B)The effect of the heroin was increased because Leonard injected it in a strange environment and his body was not prepared to take the effect under the new setting.
• C)Leonard's drug tolerance had reached its limits and his US was confounded with his CS and UR.
• D)Leonard took his dose too soon and his body already had too much.

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Definitions:

Epidermis

The outer layer of cells covering an organism, particularly the surface epithelium of the skin of animals or the outermost layer of plants.

Eudicot Stem

The stem structure of a eudicot plant, characterized by the arrangement of vascular bundles in a ring.

Pith

The central core of the stems of vascular plants, composed of soft, spongy parenchyma cells that store and transport nutrients throughout the plant.

Vascular Cambium

A layer of plant tissue located between the xylem and phloem, responsible for the growth in thickness of the stem and roots.