Fig. 4. Intensity differences and steering responses. (A) A reference sound pattern of 60 dB SPL was presented simultaneously with a test pattern of equal or higher amplitude. Intensity differences are indicated above the top trace. Lateral deviation towards the louder sound pattern was minute at 1 dB and increased with increasing intensity difference. Oscillations in the lateral steering velocity occurred during each test together with oscillations in the translational velocity. (B) Lateral deviation as a function of the intensity difference is presented. The lateral deviation is expressed as a percentage of the steering towards a 75 dB reference pattern presented from one side only. (C) Average steering response of a cricket when exposed to intensity differences of 1, 2 and 10 dB. (D) Overall path length walked during the different tests.