I design headbands with various embedded sensors that can detect rapid eye movements. And I manage a program that monitors and records the signals from these sensors and plays an audio track when it detects eye movements indicative of REM sleep. The songs can sometimes be heard in the dream state and that knowledge can be acted upon – by flying, for example.
Each entry in the database contains a printout of the most interesting minute in the recording along with a brief description of any interesting findings. And sessions in which the audio track played include a video.
The software, Lucid Scribe, is available as freeware and anyone with a compatible biofeedback device can contribute to the database. If your device isn’t listed yet, just ask – I can probably roll a plug-in in less than an hour without breaking a sweat.