Ivan Pavlov Studied the Reflexive Flow of Saliva in Dogs

question 9

Multiple Choice

Ivan Pavlov studied the reflexive flow of saliva in dogs. He used meat powder or other food to trigger the salivation. It was later observed that the salivation in the dog was triggered even before the food was placed in its mouth. In this experiment, ________ was the unconditioned stimulus.

• A) food
• B) thoughts of anticipation
• C) salivation
• D) the sight of the food dish

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Definitions:

Trace

Trace often refers to a very small amount or indication of something that is hardly noticeable or is present in minimal concentrations.

Carbohydrates

Organic compounds, including sugars, starch, and cellulose, which are an important source of energy for the body; found in a variety of foods.

Butter

A dairy product made from churning milk or cream, commonly used as a spread or cooking ingredient, known for its rich flavor and high-fat content.

Thiamine

A vitamin belonging to the B complex (Vitamin B1), essential for glucose metabolism and plays a key role in nerve, muscle, and heart function.