In:
Frontiers in Human Neuroscience, Frontiers Media SA, Vol. 17 ( 2023-6-1)
Abstract:
Adding noise to a system to improve a weak signal’s throughput is known as stochastic resonance (SR). SR has been shown to improve sensory perception. Some limited research shows noise can also improve higher order processing, such as working memory, but it is unknown whether SR can broadly improve cognition. Objective We investigated cognitive performance while applying auditory white noise (AWN) and/or noisy galvanic vestibular stimulation (nGVS). Methods We measured cognitive performance ( n = 13 subjects) while completing seven tasks in the cognition test battery (CTB). Cognition was assessed with and without the influence of AWN, nGVS, and both simultaneously. Performance in speed, accuracy, and efficiency was observed. A subjective questionnaire regarding preference for working in noisy environments was collected. Results We did not find broad cognitive performance improvement under the influence of noise ( p & gt; 0.1). However, a significant interaction was found between subject and noise condition for accuracy ( p = 0.023), indicating that some subjects exhibited cognitive changes with the addition of noise. Across all metrics, noisy environment preference may trend to be a potential indicator of whether subjects will exhibit SR cognitive benefits with a significant predictor in efficiency ( p = 0.048). Conclusion This study investigated using additive sensory noise to induce SR in overall cognition. Our results suggest that using noise to improve cognition is not applicable for a broad population; however, the effect of noise differs across individuals. Further, subjective questionnaires may be a means to identify which individuals are sensitive to SR cognitive benefits, but further investigation is needed.
Type of Medium:
Online Resource
ISSN:
1662-5161
DOI:
10.3389/fnhum.2023.1092154
DOI:
10.3389/fnhum.2023.1092154.s001
DOI:
10.3389/fnhum.2023.1092154.s002
DOI:
10.3389/fnhum.2023.1092154.s003
DOI:
10.3389/fnhum.2023.1092154.s004
DOI:
10.3389/fnhum.2023.1092154.s005
DOI:
10.3389/fnhum.2023.1092154.s006
DOI:
10.3389/fnhum.2023.1092154.s007
Language:
Unknown
Publisher:
Frontiers Media SA
Publication Date:
2023
detail.hit.zdb_id:
2425477-0
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