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Temporal context modulates sensory attenuation magnitude.

Dunja Storch1, Eckart Zimmermann1

  • 1Institute for Experimental Psychology, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany.

Acta Psychologica
|August 14, 2022
PubMed
Summary
This summary is machine-generated.

Sensory attenuation, a reduced sensitivity to self-produced events, is influenced by temporal expectations. This study shows temporal attention modulates sensory attenuation, even without temporal predictability.

Keywords:
Sensory attenuationTemporal expectationVisual sensitivity

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Area of Science:

  • Cognitive Neuroscience
  • Perception Psychology

Background:

  • Self-produced sensory events often show reduced sensitivity, a phenomenon known as sensory attenuation.
  • Previous research suggests self-production is key, but temporal predictability and attentional focus may be confounding factors.

Purpose of the Study:

  • To investigate the influence of temporal stimulus predictability on sensory attenuation.
  • To determine if sensory attenuation occurs mandatorily or is dependent on temporal expectations.

Main Methods:

  • Observers discriminated Gabor patch orientation presented randomly around a button press.
  • Stimuli were presented at various times, with varying temporal probabilities before or after the button press.

Main Results:

  • Sensory attenuation was observed, tuned to the button press time, despite unpredictable stimulus occurrence.
  • Attenuation magnitude was modulated by temporal expectations, being stronger for stimuli expected before the button press.
  • No sensory attenuation was found for stimuli expected after the button press.

Conclusions:

  • Sensory attenuation can occur mandatorily, irrespective of temporal predictability.
  • Temporal attention, guided by stimulus probabilities, plays a significant role in modulating sensory attenuation.