March 7, 2023

The hearing theory announced in the first half of the 20th century by Georg von Bekesy requires reviewing and updating. There has been a huge advancement in the sciences ever since, which allows to deepen the understanding of processes responsible for reception, processing and transmission of acoustic information. The study paid attention to several issues related to hearing, which require a deeper analysis. A bold hypothesis was stated that the signal in the form of a sound wave does not necessarily have to run through the cochlear fluids and the basilar membrane. It may reach the hearing cells through the bone of the cochlear enclosure. Attention was draw to the meaning of swinging motions of the stirrup and of the inertia in the middle ear and the inner ear.

1.1. Background: Cold or warm feelings were reported to be common symptoms of stroke patients. We recently reported that intravenous administration of autologous Adipose-Tissue-Derived Stem Cells (ADSCs) significantly improves neurological func tions, including a skin temperature increase, shortly after treat ment. 1.2. Aim: To confirm the effect of ADSCs on the skin temperature of stroke patients, we measured skin temperatures immediately before and shortly after ADSC therapy and evaluated the clinical effect on stroke patients in relevance with the skin temperature.