若隐若现的音频对经颅磁刺激诱导的磷光体感知的影响。

IF 2 4区 心理学 Q2 PSYCHOLOGY
Patrick Seebold, Yingchen He, Chang S. Nam
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引用次数: 0

摘要

众所周知,若隐若现的声音会影响大脑的视觉功能,甚至最早会影响初级视觉皮层。然而,尽管有证据表明,与静止的声音相比,若隐若现的声音对大脑皮层兴奋性的影响更大,但不同强度的若隐若现对视觉能力的影响仍不清楚。在此,我们旨在了解这些信号如何影响低级视觉功能。14 名健康的本科生参加了这项研究。他们被蒙上眼睛,在不同强度的 "嗡嗡 "声听觉刺激后接受经颅磁刺激(TMS)。参与者报告他们在接受经颅磁刺激后是否感知到了幻视或虚幻的视觉感知。我们假设磷光体的活动率会随着萦绕声强度的增加而增加。线性混合效应模型显示,萦绕强度越高(F(1, 69) = 5.33,p = .024),TMS 脉冲强度越高(F(1, 18) = 4.71,p = .043),磷光体活动率显著越高。然而,萦绕强度和脉冲强度之间也存在显著的交互作用(F(1, 69) = 4.33, p = .041)。在较低的 TMS 强度水平上,磷光体率随萦绕强度的增加而增加,而在较高的 TMS 强度水平上,该效应则相反。这些结果表明,"萦绕 "强度与大脑皮层活动之间存在复杂的关系,可能反映了听觉总能量和变化率的混合贡献。这项研究将提高我们预测视听交互作用的能力,并有助于改进旨在吸引视觉注意力的听觉预警系统。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of looming audio on transcranial magnetic stimulation-induced phosphene perception

Looming sounds are known to influence visual function in the brain, even as early as the primary visual cortex. However, despite evidence that looming sounds have a larger impact on cortical excitability than stationary sounds, the influence of varying looming strengths on visual ability remains unclear. Here, we aim to understand how these signals influence low-level visual function. Fourteen healthy undergraduate students participated. They were blindfolded and received transcranial magnetic stimulation (TMS) to the primary visual cortex following auditory stimulation with different strength looming sounds. Participants reported whether they perceived a phosphene, or an illusory visual percept, following TMS stimulation. We hypothesized that rates of phosphene activity would increase with increasing levels of looming strength. A linear mixed-effect model showed that phosphene activity was significantly higher at higher strength of looming (F(1, 69) = 5.33, p = .024) and at higher TMS pulse strength (F(1, 18) = 4.71, p = .043). However, there was also a significant interaction between looming strength and pulse strength (F(1, 69) = 4.33, p = .041). At lower levels of TMS strength, phosphene rate increased with looming strength, while at higher levels of TMS strength the effect was reversed. These results suggest a complex relationship between looming strength and cortical activity, potentially reflecting the mixed contribution of total auditory energy and the rate of changes. This work will enhance our ability to predict audiovisual interactions and may help improve auditory warning systems designed to capture visual attention.

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来源期刊
Journal of Neuropsychology
Journal of Neuropsychology 医学-心理学
CiteScore
4.50
自引率
4.50%
发文量
34
审稿时长
>12 weeks
期刊介绍: The Journal of Neuropsychology publishes original contributions to scientific knowledge in neuropsychology including: • clinical and research studies with neurological, psychiatric and psychological patient populations in all age groups • behavioural or pharmacological treatment regimes • cognitive experimentation and neuroimaging • multidisciplinary approach embracing areas such as developmental psychology, neurology, psychiatry, physiology, endocrinology, pharmacology and imaging science The following types of paper are invited: • papers reporting original empirical investigations • theoretical papers; provided that these are sufficiently related to empirical data • review articles, which need not be exhaustive, but which should give an interpretation of the state of research in a given field and, where appropriate, identify its clinical implications • brief reports and comments • case reports • fast-track papers (included in the issue following acceptation) reaction and rebuttals (short reactions to publications in JNP followed by an invited rebuttal of the original authors) • special issues.
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