Pavlov Placed Food in the Mouths of Dogs, and They

question 223

Multiple Choice

Pavlov placed food in the mouths of dogs, and they began to salivate. The food acted as a(n)
________.

• A) unconditioned response
• B) unconditioned stimulus
• C) conditioned response
• D) conditioned stimulus

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Definitions:

Ghrelin Production

The process by which the stomach produces the hormone ghrelin, which stimulates appetite and signals the body to eat.

Leptin Levels

A measure of the hormone leptin, which is produced by fat cells and is involved in regulating appetite and energy balance.

PYY

A hormone involved in appetite regulation, produced in the gut in response to eating.

Leptin

A hormone produced by fat cells that helps to regulate body weight by inhibiting hunger, thus acting as an appetite suppressant.