Another issue is that you wouldn't have any sort of active responses that may induce or attenuate any effects of the radiation. An example from the auditory wor

Another issue is that you wouldn't have any sort of active responses that may induce or attenuate any effects of the radiation. An example from the auditory world is that for much of the history of auditory system research, it was thought that the cochlea was a passive system (with a little more nuance, the idea of an active cochlear mechanism was theorized but not confirmed). But that was because the technological limitations of the time only allowed experiments on dead cochleas (primarily by von Bekesy) - once otoacoustic emissions were first recorded (70s or early 80s) we finally had verification of the cochlear amplifier. More, if interested: https://en.wikipedia.org/wiki/Cochlear_amplifier https://en.wikipedia.org/wiki/Cochlear_amplifier