Which Theory Attempts to Explain Why a Given Injury May

question 108

Multiple Choice

Which theory attempts to explain why a given injury may produce much pain in one person and less pain in another, or more at one time and less at another?

• A) retinex theory
• B) opponent-process theory
• C) gate theory
• D) trichromatic theory

---

Definitions:

Zeitgeber

External or environmental cue that synchronizes an organism's internal body clock to the 24-hour day and night cycle, such as light.

Circadian Rhythm

The roughly 24-hour cycle in the physiological processes of living beings, influencing sleep-wake patterns, hormone release, and other bodily functions.

Diurnal

Pertaining to or active during the day, as opposed to nocturnal.