Which Statement Describes Aging in Developing Countries

question 4

Multiple Choice

Which statement describes aging in developing countries?

• A) Aged dependence is likely to improve from 1:4 to 1:2.
• B) The biggest problem for older adults will be lack of food.
• C) Most of the world's older adults are likely to reside in developing countries.
• D) Like fertility, life expectancy is increasing, although at a different rate.

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Definitions:

Perceptual Constancy

The ability of the brain to maintain a stable perception of an object even as sensory input about the object changes (e.g., changes in lighting, angle, or distance).

Retinal Disparity

The slight difference in the visual images that reach each of the eyes, leading to the perception of depth and the ability to see the world in three dimensions.

Moon Illusion

A perceptual phenomenon where the moon appears larger near the horizon than it does while higher up in the sky.

Distance Cues

Visual and auditory signals that help an organism estimate the distance of an object or sound source.