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World 4 · The Room That Shrinks People · 9 min · PRO

Expectation: hollow masks and faces everywhere

Top-down perception

PRO · Illusion Lab

World 4: The Room That Shrinks People is part of PRO

The first world of Illusion Lab is free. PRO opens the other 24 lessons in 6 worlds — simulations, quizzes and all.

  • Size constancy
  • The Ames room
  • Ponzo and Müller-Lyer
  • Gestalt: the whole before the parts
  • Figure and ground: Rubin and Necker
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  • All 60 labs — every world, every lesson
  • Practice exams and certificates

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← Ponzo and Müller-LyerGestalt: the whole before the parts →

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