When is now? Perception of simultaneity.

  title={When is now? Perception of simultaneity.},
  author={James V. Stone and Nicola M. Hunkin and John Porrill and Rachel Wood and Vicki Keeler and M Beanland and Michael Port and N R Porter},
  journal={Proceedings. Biological sciences},
  volume={268 1462},
We address the following question: Is there a difference (D) between the amount of time for auditory and visual stimuli to be perceived? On each of 1000 trials, observers were presented with a light-sound pair, separated by a stimulus onset asynchrony (SOA) between -250 ms (sound first) and +250 ms. Observers indicated if the light-sound pair came on simultaneously by pressing one of two (yes or no) keys. The SOA most likely to yield affirmative responses was defined as the point of subjective… CONTINUE READING
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