Skip to main content
. Author manuscript; available in PMC: 2010 Oct 1.
Published in final edited form as: Hear Res. 2009 Jul 19;256(1-2):104–117. doi: 10.1016/j.heares.2009.07.006

Figure 1.

Figure 1

Comparison of multiunit spontaneous activity profiles in exposed and control animals. A. Activity profile for the DCN surface. Each point represents the group mean (±S.E.) of rates measured in the three rows of recordings sites. Rates in exposed animals were significantly higher than control values. Distances specified on the abscissa are relative to the lateral edge of the DCN. The activity profile along a vertical penetration through the DCN (B) demonstrates that multiunit spontaneous activity was highest at depths corresponding to the fusiform cell layer (FCL), as shown in panel C. When the data were plotted as a difference, relative to controls, (D), it can be seen that the largest increase in spontaneous activity was also observed at these depths. The exposure sound was a 10 kHz tone at a level of 115 dB SPL for 4 hrs. Spontaneous activity was measured 5–6 days following the exposure.