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. Author manuscript; available in PMC: 2012 Mar 24.
Published in final edited form as: Neuroscience. 2006 Jun 5;141(3):1257–1264. doi: 10.1016/j.neuroscience.2006.04.028

Table 2.

Amphetamine by gene by intensity interaction for N40 amplitude

Amphetamine (mg/kg) Stimulus intensity (dB) Wild type Transgenic P-value
0 75 21±7 22±8 0.973
85 89±17 29±19 0.133
95 181±24 54±26 0.003
0.1 75 48±12 26±13 0.568
85 77±18 47±19 0.436
95 107±21 80±23 0.484
0.5 75 21±6 15±7 0.881
85 47±11 12±12 0.360
95 64±13 34±14 0.440
1 75 13±7 17±8 0.935
85 15±7 12±8 0.926
95 33±10 43±11 0.800

Note that amphetamine dose dependently decreases the normal intensity function (gain) for N40 amplitude in wild type but not transgenic animals. Fisher LSD post hoc analyses (MS=2531, df=77). P-values are listed for wild type vs. transgenic mice.