Age impairs speech understanding, TFS sensitivity, and encoding even in normal-hearing adults

Evidence

The results show that even in a group of people with normal hearing, increasing age was associated with reduced speech understanding, reduced TFS sensitivity, and reduced stimulus encoding accuracy (for the modulated tone stimulus). People with good TFS sensitivity also generally had less faithful brainstem encoding of a complex harmonic tone. — Dijk, Pim van, Physiology, Psychoacoustics and…, 4155

Categorization

• QUESTION: Why does better TFS sensitivity correlate with less faithful brainstem encoding of a complex tone? This seems counterintuitive and worth chasing.