(a)
(b)
Figure 3: Characterizing the startle response. (a) Mean moving distance of larvae with 400 Hz sound of intensity linearly grown from 5 to 60 with an arbitrary unit. This results in a sound level in about 20 dB. The values are , , and . There is statistically significant difference between the 1st column and 3rd column () but not between adjacent columns. (b) Mean moving distance as function of the neomycin concentration. The values are , , and . There is statistically significant difference between the 1st column and 2nd column () but not between 2nd and 3rd columns (). The error bar is standard error.