In the Müller-Lyer Illusion, Most People Perceive the Line with the Outward-Facing

question 241

Multiple Choice

In the Müller-Lyer illusion, most people perceive the line with the outward-facing branches as longer than the line with inward-facing branches, despite the fact that they are really the same length. Which of the following is a likely reason why this occurs?

• A) The eye is distracted by the branches and cannot make an accurate measurement.
• B) The brain mistakenly interprets the branches as a depth or distance cue.
• C) The line with outward-facing branches produces a larger image on the retina.
• D) The branches interfere with the process of size constancy.

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