>Yes, brains are RF transceivers. This is why transcranial magnetic stimulation is effective.
First, TMS operates at frequencies of 1-10 Hz, so that's well below RF. Second, an RF transceiver is a device capable of sending and receiving a signal over RF, not just anything that emits RF or that is physically affected by RF. Otherwise a glass of water is an RF receiver, because when I put it in the microwave it heats up.
> First, TMS operates at frequencies of 1-10 Hz, so that's well below RF.
So? ELF communication systems have operated in that frequency range for decades [1]. Also, by "RF", I'm not referring specifically to ITU radio bands. I'm saying that the brain in general responds to radio waves in general, which is inclusive of the whole portion of the electromagnetic spectrum below 300 GHz. Perhaps a better characterization of the brain is "electromagnetic radiation (EMR) transceiver."
> Second, an RF transceiver is a device capable of sending and receiving a signal over RF, not just anything that emits RF or that is physically affected by RF. Otherwise a glass of water is an RF receiver, because when I put it in the microwave it heats up.
The very fact that functional brain-computer interfaces (BCIs) have been created demonstrates the brain is indeed a transceiver. According to a DARPA news release concerning a BCI: "By enabling two-way communication between brain and machine—outgoing signals for movement and inbound signals for sensation—the technology could ultimately support new ways for people to engage with each other and with the world" [2]. These signals are electromagnetic in nature. Given that non-invasive TMS EMR is received by the brain in specific and targeted ways [4], and given that non-invasive skull caps receive electromagnetic transmissions from the brain (though I recognize you may object to such a characterization) [3], brains are certainly able to receive and send "radio waves."
A glass of water by itself is obviously not an RF receiver.
First, TMS operates at frequencies of 1-10 Hz, so that's well below RF. Second, an RF transceiver is a device capable of sending and receiving a signal over RF, not just anything that emits RF or that is physically affected by RF. Otherwise a glass of water is an RF receiver, because when I put it in the microwave it heats up.