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Related Experiment Video

Updated: Jul 24, 2025

Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
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Training augmentation using additive sensory noise in a lunar rover navigation task.

Sage O Sherman1, Anna Jonsen1, Quinlan Lewis1

  • 1Ann & H.J. Smead Department of Aerospace Engineering Sciences, The University of Colorado Boulder, Boulder, CO, United States.

Frontiers in Neuroscience
|July 10, 2023
PubMed
Summary

Repeated auditory white noise and noisy galvanic vestibular stimulation did not enhance astronaut learning or behavioral health during space mission simulations. However, the noise interventions were found to be acceptable for long-term use.

Keywords:
auditory white noiselong duration exploration missionlongitudinal effectsmacrocognitionnoisy galvanic vestibular stimulationstochastic resonance

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Area of Science:

  • Space exploration
  • Human factors engineering
  • Neuroscience

Background:

  • Astronauts require rapid skill acquisition in uncertain future space mission environments.
  • Stochastic resonance (SR) enhances signal throughput with noise, potentially improving cognitive performance.
  • The effects of SR-inducing noise on operational task learning and astronaut behavioral health are unknown.

Purpose of the Study:

  • To evaluate the long-term impacts and acceptability of auditory white noise (AWN) and/or noisy galvanic vestibular stimulation (nGVS) on operational learning and behavioral health.
  • To determine if repeated noise exposure, aimed at eliciting SR, affects learning and well-being in a simulated space mission context.

Main Methods:

  • A longitudinal study with 24 subjects assigned to sham, AWN, nGVS, or multi-modal SR (MMSR) conditions.
  • Subjects performed a lunar rover simulation in virtual reality while receiving continuous noise treatments.
  • Behavioral health was assessed daily via questionnaires on mood, sleep, and stress, alongside stimulation acceptability.

Main Results:

  • Subjects learned the lunar rover task over time, but additive noise did not influence learning performance.
  • No significant influence of noise on mood or stress was observed.
  • Marginally significant longitudinal effects of noise on strain and sleep were noted, with nGVS being more distracting.

Conclusions:

  • Repeated sensory noise administration does not improve long-term operational learning or negatively impact behavioral health in this simulated space mission context.
  • Noise interventions were found to be acceptable for long-term use.
  • While not enhancing performance, noise stimulation appears acceptable without adverse longitudinal effects for potential future applications.