Presbycusis is a progressive hearing impairment accompanying age, typically affecting sensitivity to higher frequencies (above about 2 kHz).

Though her bright sound was sometimes hard-edged, she sang with tremulous intensity, soaring tone, fearless high notes and affecting sensitivity.

For sheer loveliness of timbre, affecting sensitivity, elegance of line and utter ease in florid passagework, she was hard to top.

This affects BOLD sensitivity.

But the essential warmth of her sound was hard to resist, and she shaped melodic lines with affecting sensitivity.

Pixel size is one of the biggest factors affecting sensitivity, especially in low light.

Treatment with the dermorphin-saporin conjugate did not alter baseline pain thresholds, or affect sensitivity in the first 5-10 days after nerve injury.

"Pixel size is one of the biggest factors affecting sensitivity."

I'm entirely unconvinced of this argument that surface area of the sensor only is what affects sensitivity.

Ethylene seems to be important in gravitropism in shoots, perhaps affecting sensitivity to auxin or its rate of transport.