Clinical Use of Aided Cortical Auditory Evoked Potentials as a Measure of Physiological Detection or Physiological Discrimination

Table 1

Outline of the experimental conditions used in the studies cited in Figure 1. Note that the parameters listed below are specific to the conditions used to generate the waveform data presented in Figure 1 and do not necessarily represent all conditions presented in each study. The eight studies included represent aided CAEP data in the literature for which unaided and aided waveforms were able to be reproduced.

	Subjects			Experimental design				Source
	𝑛	Characteristics	Stimulus	Duration (ms)	ISI (ms)	Signal level	Conditions
Figure 1 Detection approach examples
(a) McNeil et al., 2009 [14]	1	68 yo male; severe to profound SNHL	/ba/	115	750*	60 dB nHL	Unaided and aided	Figure 1, page 81: unaided and left hearing aid
(b) Rapin and Graziani, 1967 [17]	1	21 mo female; rubella, sedated	500-Hz tone	Not specified	Not specified	109 dB re: 0.0002 dynes/cm^2	Unaided and aided	Figure 4, page 892: 109 dB with and 109 dB without aid
(c) Gravel et al., 1989 [8]	1	7 mo male; severe to profound SNHL	/da/	Not specified	Not specified	Not specified	Unaided and aided (aid set to user settings)	Figure 3, page 271
(d) Korczak et al., 2005 [9]	7	Adults; severe to profound SNHL	/ba/ and /da/	150	950	80 dB ppeSPL	Unaided and aided (aid set to MCL)	Figure 3, page 176: Standard responses in lower panel, left
Figure 1 Discrimination approach examples
(e) Billings et al., 2007 [3]	13	Young adults; normal hearing	1000-Hz tone	757	1910	50 dB SPL	Unaided and aided (20 dB gain)	Figure 2, page 238: 50 dB aided and 50 dB unaided waveforms
(f) Tremblay et al., 2006 [20]	7	Young adults; normal hearing	/si/	655	1910	64 dB SPL	Unaided and aided (average gain of 19 dB)	Figure 7, page 99: Top panel
(g) Billings et al., 2011 [4]	9	Young adults; normal hearing	1000-Hz tone	756	1910	40 dB SPL	Unaided and aided (gain of 20 dB)	Figure 6, page 7: Panel (a) unaided waveform, panel (b) aided waveform
(h) Korczak et al., 2005 [9]	4	Adults; moderate SNHL	/ba/ and /da/	150	950	85 dB HL	Unaided and aided (aid set to MCL)	Figure 3, page 176: Standard responses in lower panel, center

*Reference does not state whether this value refers to onset to onset, or offset to onset. All other interstimulus intervals (ISIs) refer to offset to onset.