SENSATION AND PERCEPTION
VISION SENSORY AND PERCEPTUAL PROCESSING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cannot be fooled
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Can make perceptual errors unless a ruler is available
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Will usually interpret the two lines as being of the same length
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Can find themselves making errors of judgement by ignoring ‘carpentered world’ cues
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Detailed explanation-1: -The Müller-Lyer illusion makes lines of the same length appear to be different. The Müller-Lyer illusion is one of the most famous optical illusions in psychology.
Detailed explanation-2: -In these terms, the identical shafts or intervals in Müller-Lyer stimuli appear different in length because the probability distributions of the real-world sources of the lines or intervals, given the contexts provided by the arrowheads or arrow tails, are in fact different.
Detailed explanation-3: -The Müller-Lyer arrow figure (see the figure on the left below) is the most famous illusion of all, designed in 1889 by Franz Müller-Lyer. This illusion is created by two lines of equal length, one line being terminated by outward wings at both ends and another line being terminated by inward wings at both ends.
Detailed explanation-4: -Müller-Lyer’s eponymous illusion had deceived thousands of people from WEIRD societies for decades, but it wasn’t universal. The biological basis of how these different groups of people saw the illusion is identical, but the response was totally different. The success or failure of the illusion is a cultural effect.