Hearing in this case should include vestibular organs, since the saccule have well known responses to sound. In fact the Vestibula Evocked Myogenic Potential is oroduced by sound.
"There are a lot of insects with soundpressure receptors"
I don't think this question will be resolved unless we look at animals and evolution in general. Is your position that these insect systems have evolved separately and have no relevance to humans?
I never expected to see a simple demonstration at the Royal Society of travelling waves in a cricket's leg!
There is about a 40-50 dB interaural attenuation between ears when delivering an intense sound in one ear by air conduction in order for the other ear to detect it by bone conduction. Once the sound gets loud enough, it vibrates the cranium. I never thought about this before, but conceivably, when the cranium vibrates, the cerebral spinal fluids in the cranium would create fluid waves that could be detected by the brain tissue. I would expect this to be perceived (if perceived at all) as more of a tactile stimulus rather than an auditory stimulus. Are you asking if, for example, the olfactory system or visual system can detect SPLs?
Gerald, there is a crossover semantically between mechanical and acoustic force, pressure and vibration. All can be measured in pascals. The organ of hearing (the ear) is sensitive to air radiated mechanical vibration (sound) and it is sensitive to mechanically transmitted vibrational energy (bone conducted sound). The mechanical energy to nerve electrochemical energy are the hair cells and their uniqueness is that they are the biological transducers plugged into the auditory nervous system. Their outputs give rise to “hearing” and
Continued: and are the only nervous ststem so connected (excluding synesthesia situations). There are many other elements of the human body able to detect mechanical energy inputs, joint proprioception, skin and hair root mechanical energy receptors, possibly also proprioceptors in bone and soft tissues although my knowledge of that anat and phys is hazy. So, is it specifically air radiated sound you are seeking answers for or mechano-receptors more generally. I suppose its mechano-receptors as the perception is simply what part of the nervous system things are plugged into....
Of course the carotid bodies have pressure receptors plugged into the sympathetic nervous system of homeostasis fo blood pressure and the trigome of the bladder, although that is stretch receptor rather than pressure....
how the sound of drums is received by receptors in the whole body (on organs, bones brain etc. ) not only in the vestibular, hearing and skins systems.