“…To characterize the model better, a number of recent studies have dealt with the internal structure and morphology of the gerbil tympanic membrane (TM) and the morphometric parameters of the gerbil middle ear (e.g., von Unge et al, 1991;Cohen et al, 1992Cohen et al, , 1993Henson et al, 1999Henson et al, , 2005Yang and Henson, 2002). Experimental data on the gerbil TM deformation and middle ear ossicle movement under static pressure are available as are measurements of sound induced vibrations (most recent studies: von Unge et al, 1991Unge et al, , 1993Ravicz et al, 1992;Ravicz and Rosowski, 1997;Dirckx et al, 1997Dirckx et al, , 1998Rosowski et al, 1999;Dirckx and Decraemer, 2001;Larsson et al, 2001;Lee and Rosowski, 2001;Overstreet and Ruggero, 2002;Rosowski and Lee, 2002).…”