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Is it always so? Unexpected visions.

Jan B Deręgowski1, Benjamin W Tatler1

  • 1School of Psychology, University of Aberdeen, AberdeenAB24 3FX, UK. j.b.deregowski@abdn.ac.ukb.w.tatler@abdn.ac.uk.

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Summary
This summary is machine-generated.

Perceptions arise from predictive processes, where expectations shape sensory data interpretation. This study explores how expectations can lead to unusual perceptions, challenging direct experience as the sole source of perceptual hypotheses.

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Area of Science:

  • Cognitive Science
  • Neuroscience
  • Psychology

Background:

  • Perception is increasingly understood through predictive processing models.
  • Expectations play a crucial role in how sensory information is interpreted.

Purpose of the Study:

  • To investigate the formation and application of expectations in predictive perception.
  • To explore instances where expectations lead to non-veridical perceptions.
  • To refine the understanding of how perceptual hypotheses are derived from experience.

Main Methods:

  • Conceptual analysis of predictive processing in perception.
  • Examination of case studies illustrating expectation-driven perception.

Main Results:

  • Expectations can generate perceptions that are unexpected or unlikely given sensory input.
  • These cases highlight the active, hypothesis-generating nature of perception.
  • The influence of prior experience on current perception is demonstrated.

Conclusions:

  • Perceptual hypotheses are not solely direct derivatives of experience.
  • Sensory data is interpreted through the lens of internally generated expectations.
  • Understanding expectation formation is key to understanding perception.