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Area of Science:

  • Neuroscience
  • Visual Perception
  • Cognitive Science

Background:

  • Neural processing differs between novel and predictable stimuli.
  • Predictability may influence neural response amplitude in the visual cortex.

Purpose of the Study:

  • To investigate how functional magnetic resonance imaging (fMRI) Blood-Oxygen-Level-Dependent (BOLD) responses in the early visual cortex reflect the anticipation of a moving object's trajectory.
  • To understand the neural mechanisms underlying visual motion anticipation.

Main Methods:

  • fMRI BOLD responses were measured in human early visual cortex.
  • Participants viewed a moving bar stimulus with predictable trajectories.
  • Motion coherence was disrupted using contrast reversals to assess anticipation effects.

Main Results:

  • BOLD signals decreased linearly along the stimulus trajectory.
  • Decreased BOLD response amplitude correlated with an increased initial dip.
  • Anticipation effects were absent when motion coherence was disrupted.

Conclusions:

  • The human early visual cortex anticipates the trajectory of coherently moving objects.
  • This anticipation occurs in the early stages of visual motion processing.
  • Suppression of predictable input may contribute to stable visual perception.