C Elberling's research while affiliated with William Demant Holding and other places

... Table 2 summarizes the F-test statistics from the model fit to the left channel ASSR NC level data; however, highly similar results and identical synthesis could be made addressing the right channel data. The strong random effect of subject indicates significant variation among subjects, as expected (Laugesen et al., 2018). The significant factor Condition and two-way interaction in both harmonics indicates that the Inv 40 condition has a varied effect depending on the response stimulus frequency band. ...

... The spontaneous EEG data used in this study were previously recorded from 17 participants by Madsen et al. [9,10] under several recording conditions: asleep, lying still, blinking, and with head movement. No sound stimuli were delivered. ...

... The digital peak-to-peak values of the 0.8-s tones were approximately equal for the 500-and 4,000-Hz tones for both the loud and the soft tones (see Table 1). For the toneburst stimuli, we based calibration on the coupler measurements reported in Elberling and Crone Esmann [2017], which show that for 2-1-2 tonebursts of 4,000 Hz at a repetition rate of 22.1/s, approximately 13.5-dB RMS (average) should be added to the peak measurement in the digital signal. After presentation through the script used for testing, the values from a Brüel and Kjaer 2607 sound level meter, with analog input from a 4152 artificial ear, are those given in Table 1. ...

... The results showed that biting a cotton roll affected AEF response depending on the strength of the occlusal force applied. Biting significantly lowered the AEF responses of the N100 m components in the right hemisphere auditory areas 5,9,20,21) . ...

... The statistical testing is repeated as and when more samples are collected. The calculated test value is always compared with the critical test value for repeated testing developed by Stürzebecher et al., (2005). If the calculated test value reaches the critical test value, response is considered as present and the test is stopped. ...

... Evidence for a source of N100 in the supratemporal plane was obtained by Vaughan and Ritter (1970), who observed a polarity reversal in the EEG over that location when the nose was used as reference. Definitive identification of the actual locations was provided by neuromagnetic studies by Hari et al. (1980) and Bak et al. (1981). Contributions from an additional source in the temporal lobe were inferred by Wolpaw and Penry (1975) who reported statistically significant differences in the EEG waveform within the interval of 100 to 200-ms from an electrode over the vertex compared with another over temporal scalp positions T3 and T4. ...

... A The relative contribution of specific portions of the basilar membrane to a surfacerecorded response, such as the auditory brainstem response (ABR), may be revealed by the "high-pass noise/derived response" (HP/DR) technique. The HP/DR technique was originally introduced for recordings of cochlear nerve compound action potentials in animals by Teas and colleagues (Teas, Eldridge, and Davis 1962), and subsequently applied to human electrocochleographic recordings by Elberling (1974) and by Eggermont (1976) and soon after to the ABR by Don and Eggermont (1978) as well as by Parker and Thornton (1978b). Since these first reports, the HP/DR technique has proven to be an extremely valuable tool for investigation of mechanisms underlying the ABR, and, to a lesser extent, for clinical investigations. ...

... The broadband CEchirp stimulus (level independent) decomposed to a narrow-band (NB) stimulus centered at 500, 1000, 2000, 4000, and 8000 Hz (referred to as NB CE-chirp stimulus of that particular frequency). A newer level-specific (LS) CE-chirp stimulus was developed by modifying the temporal characteristics of the chirp stimulus based on observed level effects related to changes in the cochlear traveling wave delay and the upward spread of the excitation [26]. Broadband CE-chirp LS decomposed to NB stimulus centered at 500, 1000, 2000, 4000, and 8000 Hz (referred to as a NB LS CE-chirp stimulus of that particular frequency). ...

... Similarly, spike-triggered averaging has been employed to estimate the UR in cats (Kiang et al., 1976) and guinea pigs (Prijs, 1986). Elberling (1976) empirically estimated the human UR associated with an electrode placed on the TM using a masking technique to limit ANF activity to the base of the cochlea. Specifically, the average of CAPs recorded from the 8-20 kHz cochlear region of several human subjects served as an estimate of the UR after correcting for the expected traveling wave delay. ...

... On the BM, the broader filters result in broader excitation patterns, i.e. regions of the BM with characteristic frequencies further from the center-frequency of a stimulus are recruited. Elberling [6] and Folsom [7] discussed how this broadening in excitation with level results in shorter latencies as more basal regions of the BM are activated, i.e. regions with shorter implicit delays. Another inherent feature of the filter tuning is the change in the envelope of the local BM impulse response. ...