Auditory steady-state evoked potentials vs. compound action potentials for the measurement of suppression tuning curves in the sedated dog puppy

作者：Markessis Emily^*; Poncelet Luc; Colin Cecile; Hoonhorst Ingrid; Collet Gregory; Deltenre Paul; Moore Brian C J

来源：International Journal of Audiology, 2010, 49(6): 455-462.

DOI：10.3109/14992021003627900

• Auditory steady-state evoked potentials
• Compound action potentials
• Frequency selectivity
• Tuning curves
• Dog

Auditory steady-state evoked potential (ASSEP) tuning curves were compared to compound action potential (CAP) tuning curves, both measured at 2 Hz, using sedated beagle puppies The effect of two types of masker (narrowband noise and sinusoidal) On the tuning curve parameters was assessed Whatever the masker type CAP tuning curve parameters were qualitatively and quantitatively similar to the ASSEP ones, with a similar inter-subject variability, but with a greater incidence of upward tip displacement Whatever the procedure. sinusoidal maskers produced sharper tuning curves than narrow-band maskers Although these differences are not likely to have significant implications for clinical work, from a fundamental point of view. their origin requires further investigations The same amount of tune was needed to record a CAP and an ASSET 13-point tuning curve The data further validate the ASSEP technique, which has the advantages of having a smaller tendency to produce upward tip shifts than the CAP technique Moreover, being non invasive. ASSEP tinting curves can he easily repeated over lime in the same subject for clinical and research purposes

• 出版日期2010-6