If you stare at something for a long time, it does not disappear, because

• A. colors keep the eye from experiencing sensory adaptation.
• B. tiny movements of the eyes keep them from adapting to what they see.
• C. light waves are impervious to adaptation.
• D. the pupils dilate when you stare too long.

Answer: (B)

Verified step by step guidance

1. Understand the concept of sensory adaptation: Sensory adaptation refers to the process by which our sensory receptors become less sensitive to constant stimuli over time.
2. Consider the role of eye movements: Tiny, involuntary movements of the eyes, known as microsaccades, prevent sensory adaptation by constantly refreshing the image on the retina.
3. Evaluate the options: Analyze each option to determine which one aligns with the concept of preventing sensory adaptation.
4. Option analysis: The option 'tiny movements of the eyes keep them from adapting to what they see' directly relates to the role of microsaccades in preventing sensory adaptation.
5. Conclude with the correct understanding: Recognize that the tiny movements of the eyes are crucial in preventing the visual system from adapting to a constant stimulus, thus keeping the image from disappearing.