Volume 31 #2

Contents

1. AUDITORY ADAPTATION TO MOTION: INTERSENSORY EFFECTS
2. ANALYSIS OF THE YARBUS’S CONCEPTIONS ON THE ROLE OF THE BLIND RETINA IN COLOR PERCEPTION
3. THE FEEDING BEHAVIOR OF THE MALLARD (ANAS PLATYRHYNCHOS) IN THE DARKNESS
4. RESOLUTION OF SOUND RIPPLED SPECTRUM AN DIFFERENT BANDWIDTHS BY HUMANS: ELECTROPHYSIOLOGICAL STUDY
5. STEREO CORRESPONDENCE PROBLEMS IN TERMS OF LINEAR THEORY OF SPECTRAL STIMULUS FORMATION
6. SCREEN-PRINTED ELECTRODES MODIFIED WITH PROTEIN HYDROGEL AND BACTERIAL CELLS AS THE BASIS OF AMPEROMETRIC BIOSENSOR

The frequency resolving power of human hearing was investigated by using the phase reversal test in conjunction with recording slow auditory evoked potentials (SAEP). The rippled noise was used as a test signal. The central frequency of the signal was 2 kHz, and its spectrum bandwidth was from 5 to 1 oct. The principle of the test was to find the highest ripple density at which the SAEP to interchange of spectral peak and trough positions was recorded. The ripple-density resolution was 8.5 rip/oct at spectrum bandwidth from 5 to 2 oct. This result is in agreement with psychophysical data. The ripple density resolution was 6.9 rip/oct at bandwidth 1 oct, which is below psychophysical data.

Key words: hearing, frequency resolution power, rippled spectrum, evoked potential

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