“…Although it is clear that deafferentation perturbs cellular properties throughout the central auditory system (Kotak and Sanes, 1996;Vale and Sanes, 2000;Kotak et al, 2005;Walmsley et al, 2006;Wang and Manis, 2006), the effect of sound attenuation has not been established. Because there is considerable debate about the behavioral impact of conductive hearing loss alone (Feagans et al, 1987;Teele et al, 1990;Mody et al, 1999;Psarommatis et al, 2001;Roberts et al, 2002;Paradise et al, 2005), it is essential to establish whether or not central deficits occur. In the present study, we demonstrated that CHL led to distinct functional alterations within the ACx: short-term synaptic depression was increased, PSP latency increased, action potential adaptation declined, and the variability of PSP and spike latency increased.…”