Abstract
Homo- and anti-phasic stimulation in ABR. Rawool, V.W. and Ballachanda B.B. (Department of Audiology and Speech Sciences. Purdue University, West Lafayette, Indiana, USA) Scand Audiol 1990, 19(9-15). Effects of homophasic and anti-phasic stimulation on the binaurally evoked auditory brain-stem responses (ABRs) were investigated in 10 normal subjects. Clicks were presented at 47 dB SL with two in-phase (binaural condensation and binaural rarefaction) and two out-of-phase (left ear condensation. right ear rarefaction and right car condensation, left ear rarefaction) stimulus configurations. The earlier of the latencies obtained with homophasic stimulation were compared with the earlier of the latencies obtained with anti-phasic stimulation. Repeated measures ANOVAs on the peaks (P) and toughs (N) of each component, revealed significantly earlier latencies for the anti-phasic condition, for components HN (p<0.049). III P (p<0.012) and VI N (p<0.025). Similar trends were apparent for components IV P (p0.075). VP (p<0.099) and VIP (p<0.12). The results are discussed in terms of the binaural-level difference phenomenon and possible clinical applications.
Original language | English |
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Pages (from-to) | 9-15 |
Number of pages | 7 |
Journal | Scandinavian Audiology |
Volume | 19 |
Issue number | 1 |
DOIs | |
State | Published - Jan 1990 |
Externally published | Yes |
Scopus Subject Areas
- Otorhinolaryngology