Why Do Our Brains Fall for Optical Illusions

• The brain’s perception of the world involves using contextual information, shortcuts, and predictions.

• Patterns include assuming light comes from above, filling missing edges, and exaggerating contrasts.

• These tricks can lead to rational mistakes, interpreting ambiguous information in ways that deviate from physical reality.

• A study in Nature Neuroscience reveals that IC-encoders in the primary visual cortex respond to illusory contours as real edges.

• These neurons integrate predictions from higher brain areas and broadcast them, filling in missing parts to create a coherent whole.

• Illusions “hack” perception by combining partial evidence with prior expectations to infer the most likely picture.

Brain and optical illusions is important topic for Civil service exam (WBCS).

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