Open Source Orgasmatron
You may remember this device from Sleeper, this thread is to discuss the possibility to create the real thing. BTW, I know that there is a guy already commercializing something along these lines. The point is to make a better, customizable, DIY version with open blueprints for anyone to enjoy (potentially adding some kind of connection with someone else's implant). A couple of popular science articles to open the discussion:
Implant Achieves Female Orgasm
http://www.wired.com/science/discoveries/news/2001/02/41682
A Sex Chip? Targeting the Brain's Pleasure Center with Electrodes
http://www.scientificamerican.com/article.cfm?id=a-sex-chip
Implant Achieves Female Orgasm
http://www.wired.com/science/discoveries/news/2001/02/41682
A Sex Chip? Targeting the Brain's Pleasure Center with Electrodes
http://www.scientificamerican.com/article.cfm?id=a-sex-chip
Comments
The thing with the feedback loop, though, is that a neuron can essentially be in two states: action potential or no action potential. There's a certain threshold voltage (which is around 70 mV with respect to the inside of the cell IIRC), which will force a neuron into action potential mode if you exceed it. If we increase any further, we can increase the number of neurons that start an action potential, but that's also going to hit a threshold eventually. It depends on how many neurons can carry this particular signal to the correct brain region; hopefully there are enough that the feedback loop can generate high enough voltages without worries.