Using a Room in Which the Walls and Ceiling Could

question 28

Multiple Choice

Using a room in which the walls and ceiling could move independently of the floor, Lee and Aronson (1974) demonstrated that:

• A) optic flow was unrelated to maintaining an upright position.
• B) optic flow could cause children to stagger and fall.
• C) the focus of expansion corresponded to the position of a stationary object.
• D) the navigation and focus of expansion overlap if a person walks straight ahead.

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Definitions:

Radula

A rasplike structure in the digestive tract of chitons, snails, squids, and certain other mollusks.

Annelids

A phylum of invertebrate worms known as segmented worms, which includes earthworms, leeches, and polychaetes.

Segmented Body

The body plan characteristic of certain organisms, including arthropods and annelids, where the body is divided into segments.

Visceral Mass

The concentration of body organs (viscera) located above the foot in mollusks.