The aim of this work is to present problems related to tinnitus symptoms, its pathogenesis, hypotheses on tinnitus causes, and therapy treatment to reduce or mask the phantom noise. In addition, the hypothesis on the existence of parasitic quantization that accompanies hearing loss has been recalled. Moreover, the paper describes a study carried out by the Authors with the application of high-frequency dither having specially formed spectral characteristics. Discussion on preliminary results obtained and conclusions are also contained.
The paper is dedicated to the memory of Professor Jan Strelau, who passed away in Warsaw 4th of August 2020. Professor Jan Strelau was the most prominent and world-wide recognized Polish psychologist and his scientific contribution was essential for psychology of individual differences and studies on temperament. Paper presents the life and scientific achievements of Professor Jan Strelau.