In the Müller-Lyer Visual Illusion, a Line with Two Open-Angle

question 21

Multiple Choice

In the Müller-Lyer visual illusion, a line with two open-angle ends appears longer than a line with two closed-angle arrowhead ends, even though the lines are in fact the same length. This illusion is more common in cultures:

• A) where carpentry is prominent, due to the prevalence of right angles.
• B) where people are highly mobile, due to exposure to differing environments.
• C) where there are many deserts, due to the frequency of rounded lines.
• D) where archery is a common mode of hunting and defense, due to the prevalence of arrowheads.

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Definitions:

Exposure Therapy

A psychological treatment that involves gradually and systematically exposing individuals to the objects or situations they fear to reduce anxiety.

Posttraumatic Stress Disorder

A psychiatric disorder that can occur in people who have experienced or witnessed a traumatic event, characterized by flashbacks, severe anxiety, and uncontrollable thoughts about the event.

Bipolar Disorder

A mental disorder characterized by extreme mood swings from manic highs to depressive lows.

Selective Serotonin Reuptake Inhibitors

A class of drugs commonly used to treat depression and anxiety by increasing levels of serotonin in the brain.