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Related Experiment Video

Updated: Jun 12, 2026

Stimulus-specific Cortical Visual Evoked Potential Morphological Patterns
09:42

Stimulus-specific Cortical Visual Evoked Potential Morphological Patterns

Published on: May 12, 2019

Spatiotemporal Divergence Between Intrinsic And Evoked Cortical Activity Predicts Visual Detection.

Dylan Jensen1, Zachary W Davis1

  • 1Department of Ophthalmology and Visual Sciences, University of Utah.

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
|June 10, 2026
PubMed
Summary

Intrinsic brain activity in surrounding neural populations, not just those encoding stimuli, better predicts visual detection performance. This suggests broader neural states significantly influence perception.

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Area of Science:

  • Neuroscience
  • Sensory Perception
  • Computational Neuroscience

Background:

  • Sensory detection thresholds fluctuate with intrinsic cortical activity.
  • The interplay between stimulus-evoked responses and intrinsic neural states in sensory detection remains unclear.

Purpose of the Study:

  • To investigate how intrinsic activity states in both stimulus-encoding and non-encoding cortical populations influence visual detection.
  • To determine the spatiotemporal structure of intrinsic activity relevant to perceptual thresholds.

Main Methods:

  • Recorded intrinsic and target-evoked population activity in cortical Area MT of common marmosets during a visual detection task.
  • Compared detection performance based on target-evoked responses versus intrinsic activity in surrounding populations.

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Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography
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Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Published on: July 26, 2019

Related Experiment Videos

Last Updated: Jun 12, 2026

Stimulus-specific Cortical Visual Evoked Potential Morphological Patterns
09:42

Stimulus-specific Cortical Visual Evoked Potential Morphological Patterns

Published on: May 12, 2019

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography
09:25

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Published on: July 26, 2019

Main Results:

  • Intrinsic activity in non-encoding populations predicted trial-by-trial detection performance better than evoked responses.
  • Detection performance was best predicted by the divergence in activity between encoding and surrounding populations.

Conclusions:

  • Distributed intrinsic activity states, particularly in non-encoding populations, significantly influence sensory signal representation and perceptual thresholds.
  • Broader neural population states play a crucial role in sensory computations underlying perceptual decisions, challenging the focus on solely stimulus-encoding populations.