Crespi Studied How Hungry Rats Change Their Running Speed When

question 3

Multiple Choice

Crespi studied how hungry rats change their running speed when the amount of reward is suddenly changed.His findings forced Hull to conclude that ______.

• A)the amount of reward directly influences the motivation for behavior
• B)the amount of reward has no direct effect on motivation
• C)sudden changes in reward causes forgetting of the learned response
• D)changes in reward attract the animal's attention and increase habit strength

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Definitions:

Red Blood Cells

Biconcave, disc-shaped cells without nuclei, present in the blood, whose principal function is to transport oxygen from the lungs to body tissues.

Blood

A vital fluid in the body that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells.

Coagulates

The process by which a fluid, especially blood, changes to a solid or semi-solid state, often to stop bleeding.

Vessel Wall

The structural boundary of blood vessels consisting of layers including the endothelium, smooth muscle, and connective tissue.