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. 2005 Aug 17;25(33):7558–7566. doi: 10.1523/JNEUROSCI.1735-05.2005

Figure 3.

Figure 3.

Neurons obtained from the middle region of the spiral ganglion showed exceptionally high APmax levels with either nonbursting or bursting firing patterns. a, Recording from a neuron that fired up to 30 action potentials in response to a 240 ms depolarizing step potential. The calibration bars apply to a and b. b, An example series of recordings from another neuron with an APmax of 30 that showed bursting firing patterns at lower depolarizing constant current injections. In a and b, recordings are arranged from the smallest step current injection (bottom trace) to the highest step current injection (top trace). c, The average APmax values for slowly accommodating neurons from middle regions were significantly higher than the averaged values of slowly accommodating neurons from apical regions (**p < 0.01). d, The average interspike intervals from slowly accommodating neurons in middle cochlear regions were significantly lower than the averaged values from slowly accommodating neurons from the apex (*p < 0.05). Neurons in this study were isolated from P5-P7 CBA/CaJ mice; recordings were made at 5-9 div. Error bars represent SEM.