Simultaneous multiple stimulation of the ASSR

10 mins
12 August 2022


Summary of: Elberling, C., Cebulla, M., & Stürzebecher, E. (2007). Simultaneous multiple stimulation of the auditory steady-state response (ASSR)Proceedings of the International Symposium on Auditory and Audiological Research1, 201–210. Retrieved from

This paper describes some characteristics of the ASSR related to the use of multiple, simultaneous, band-limited chirp-stimuli. In a diagnostic study four one-octave-band chirp-stimuli (500, 1000, 2000 and 4000 Hz) were used to measure the ASSR-threshold in normal-hearing adults (N=20 ears). The four stimuli were presented simultaneously to both ears (eight stimuli) with rates at around 90/s. The ASSRs were detected automatically (error rate 5%), and the thresholds evaluated with a resolution of 5 dB. The ASSR thresholds were compared to the audiometric pure-tone thresholds and the deviations evaluated by the group means and standard deviations. These data compare favorably well with similar data reported by others. In a screening study a low-frequency chirp, (Lo: 180 – 1500 Hz) and a high-frequency chirp (Hi: 1500 –8000 Hz), is used to record the ASSR in newborns (N = 72). The two stimuli are presented both sequentially and simultaneously using a rate at about 90/s and a level of 35 dB nHL. The ASSRs are detected automatically (error rate 0.1%), and stimulus efficiency is evaluated by the detection time. The results from both studies demonstrate that simultaneous application of multiple, frequency-specific stimuli can effectively be applied without sacrificing response detection accuracy. However, in the screening study stimulus interactions are observed.

Related course: Getting started: ASSR


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