Binocular Rivalry - Objective Test
An innovative, experimental test that provides objective data about your imagery ability. Based on the scientific priming effect in binocular rivalry.
What is the Binocular Rivalry test?
The Binocular Rivalry test is an innovative approach to objectively measuring imagery ability. Unlike questionnaires like the VVIQ, which rely on self-assessment, this test uses a measurable physiological effect.
In binocular rivalry, different images are shown to each eye. Instead of merging both images, the brain alternates between them. The test uses this effect to measure how strongly your mental imagery influences your perception.
Research has shown that people with strong imagery ability more frequently perceive a color they've mentally imagined during binocular rivalry. This 'priming effect' enables a more objective measurement.
Experimental Test
This test is based on current research and is not as established as the VVIQ. Results should be considered supplementary information, not a definitive diagnosis.
How the test works
Color calibration
First, we check your color perception with simple color tests.
Imagine a color
You'll be asked to intensely imagine a specific color (red or blue).
View rivalry pattern
Then you'll see a special pattern where both colors compete.
Report perception
You indicate which color you perceive as dominant.
The science behind it
The priming effect
When you imagine a color, this 'primes' your visual system. In people with strong imagery, this causes them to perceive that color more frequently afterward.
Binocular rivalry
When each eye is shown a different image, the brain alternates between both images. This switching can be influenced by prior mental imagery.
Take the Binocular Rivalry test
Allow yourself 15 minutes in a quiet environment. Make sure you can distinguish colors well.
Your data, your choice
My Test Data
You can delete your locally stored test results and withdraw any previously given research consent here.
Frequently asked questions
What exactly does this test measure?
The test measures how strongly your mental imagery influences your visual perception. A strong priming effect indicates vivid imagery, while a weak effect could indicate aphantasia.
Why is this test more objective?
Unlike questionnaires, this test is not based on your self-assessment but on a measurable behavioral effect. This makes it less susceptible to subjective bias.
Is this test scientifically validated?
The test is based on peer-reviewed research on binocular rivalry and the priming effect. However, it's not as broadly validated as the VVIQ and should be considered a supplementary tool.
What requirements do I need?
You need a computer or tablet with a sufficiently large screen. Color blindness can affect results – the test therefore begins with color calibration.
More aphantasia tests
VVIQ - Visual Test
The classic, globally recognized test for measuring visual imagery vividness.
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