Akademik Veri Yönetim Sistemi
TRAITEMENT DU SIGNAL, cilt.42, sa.4, ss.2245-2252, 2025 (SCI-Expanded)
Audiological testing is important for correctly diagnosing hearing problems and making appropriate treatment plans. During the audiological test, it is important to reveal which subfrequency bands of the electroencephalogram (EEG) dominate, and which electrode regions have simultaneous activation for determination of the effects of the audiological test on the brain electrical activity. The purpose of this study is to determine the changes caused by the audiologic test process in the brain activity of individuals. The EEG signals were obtained from 36 volunteers during audiological testing and at rest. The EEG data were analyzed to show the effects of the test process according to the resting state. Dual electrode coherence analyses were performed for delta, theta, alpha, beta and gamma sub-frequency bands of EEG signals. In the study, neural activation in frontal and temporal positions was also examined using wavelet coherence during the audiological test task. In the study, it was also attempted to determine whether the coherence values of the electrode pairs could be used to distinguish between resting and audiological test conditions through the classification process. At this stage, an attempt was made to determine the most effective EEG sub-bands that distinguish resting and audiological test status. The results showed that there was a high coherence in the changes in alpha, theta and delta bands, especially in the symmetric temporal region, throughout the audiological test process. It seems that the sub-frequency bands of EEG signals in the audiological testing process in participants can be distinguished by coherence analysis.