What is the phi-phenomenon in psychology


Phi phenomenon

  • Sign (1 variant)

  • Definition: This term was introduced by M. WERTHEIMER in 1912 and is the name for a certain movement illusion (see pseudo movement). Example: In a darkened room, two fixed points that are not too far apart light up alternately. The observer gets the impression that the flashing points jump back and forth. However, if more than 16 individual images per second are presented to the eye, they merge into an impression of movement. Only through this illusion of movement is film and television possible (flicker merging tendency).
  • Generic terms:

  • Sign: variant 1

    Same shape:

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