a Graduate Program in Electrical Engineering , Federal University of São João del-Rei , São João del-Rei , MG , Brazil.
b Department of Electrical Engineering , Federal University of Viçosa , Viçosa , MG , Brazil.
Int J Audiol. 2019 Sep;58(9):598-603. doi: 10.1080/14992027.2019.1610910. Epub 2019 May 13.
Abstracts The detection of the auditory steady-state responses is usually performed by an appropriate objective response detector applied to stimulus-related epochs of the raw electroencephalogram (EEG). In order to improve the detection time, sequential detection strategies are usually used. These multiple tests strategies increase the probability of mistakenly detecting a response. The aim of this study was to develop strategies to determine the critical values for the sequential detection strategies based on constant significance level tests. Extensive Monte Carlo simulations were used to test these strategies for the magnitude-squared coherence (MSC) detector. The performances of these strategies were compared with previous works found in the literature. All strategies were applied to synthetic and real EEG datasets. The strategies ensure the desired significance level at the end of the sequential detection strategy. The simulated results are in accordance with the real data results. For the MSC detector, where the critical value depends on the number of epochs, the proposed sequential detection strategies obtain better performance regarding test time and detection rate, but worse overall detection rate compared to applying a test only once.
摘要 听觉稳态响应的检测通常通过适用于原始脑电图（EEG）刺激相关时段的适当客观响应检测器来进行。为了提高检测时间，通常使用顺序检测策略。这些多重测试策略增加了错误检测响应的概率。本研究的目的是开发基于恒定显著水平测试的策略，以确定顺序检测策略的临界值。 广泛的蒙特卡罗模拟用于测试幅度平方相干（MSC）检测器的这些策略。将这些策略的性能与文献中发现的先前工作进行了比较。 所有策略均应用于合成和真实 EEG 数据集。 该策略可确保在顺序检测策略结束时达到所需的显著水平。模拟结果与实际数据结果一致。 对于 MSC 检测器，其中临界值取决于时段的数量，与仅应用一次测试相比，所提出的顺序检测策略在测试时间和检测率方面具有更好的性能，但整体检测率较差。
