Schmidt L A, Fox N A, Long J M
Department of Psychology, McMaster University Hamilton, Ontario.
Int J Neurosci. 1998 Feb;93(1-2):1-6. doi: 10.3109/00207459808986407.
We examined the viability of a software-based spectral method for reducing acoustic startle eyeblink responses. Fifteen young adults were presented with a 95 dB burst of white noise for 50 ms while they viewed slides that varied in affective valence. The startle EMG responses were analyzed using a discrete Fourier transform software-based spectral method. A significant linear trend was found between slide valence and startle amplitude, replicating previous work. Subjects' startle responses became more augmented as the content of the slides became more unpleasant. The advantages of software-based solutions for reducing startle EMG responses are discussed.
我们研究了一种基于软件的频谱方法降低听觉惊吓眨眼反应的可行性。15名年轻人在观看情感效价不同的幻灯片时，会听到50毫秒时长、强度为95分贝的白噪声突发。使用基于离散傅里叶变换软件的频谱方法分析惊吓肌电图反应。发现幻灯片效价与惊吓幅度之间存在显著的线性趋势，重复了先前的研究结果。随着幻灯片内容变得更加令人不快，受试者的惊吓反应增强得更多。讨论了基于软件的解决方案在降低惊吓肌电图反应方面的优势。
