TABLE 2.Properties of excitatory sound-evoked responses
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Tuning Type |
Total (n = 45) | |||||||
Short-Pass (n = 3) | Band-Pass (n = 9) | Long-Pass (n = 7) | Untuned (n = 26) | |||||
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Rise time | ||||||||
EPSP, ms | 3.2 ± 0.5 | 7.0 ± 1.5 | 21.7 ± 6.0 | 5.4 ± 1.3 | 8.3 ± 1.5 | |||
Delay, ms | 10.2 ± 0.6 | 11.8 ± 2.6 | 14.2 ± 1.9 | 8.8 ± 0.3 | 10.3 ± 0.7 |
Values are means ± SE. Tones of 512 ms at CFEPSP were given typically at 40 dB above threshold. Both rise time (P < 0.001; ANOVA) and delay (P=0.02) differed significantly between the groups. The average rise time of the long-pass group differed significantly from
that of each of the other groups (P < 0.01; Tukey's HSD). In addition, long-pass neurons had a significantly longer delay than that of untuned neurons (P=0.02; Tukey's HSD).