You’re right, a full Type 1 PSG can indeed be completed with 24 channels. 60 Channels would be quite specific and specialist I would imagine, but I would like to potentially keep the door open for extended and general EEG use as well. At the moment the price diference between 32 channel and 60 channel seems fairly negligible.
As for the all the wires on a daily basis, I can’t say I’m too phased by it. I would imagine there ways to increase comfort with certain customized support holders etc.
I had another brief look at g.tec, and although it seems interesting I’m not convinced it reaches my requirements for full PSG analyses.
There is another product that caught my attention a short while ago, and one that I’m considering.
Full wireless Type 1, PSG. I’d imagine this would be easier for (potential) ambulatory use, but the motion artifacts need addressing. Also, it’s batteries are only capable of recording 12 hours of continous recording before recharge. It might be possible to purchase batteries that can record for 24 hours of continous use, but I can’t confirm that.
Lastly, to those who are interested, there’s an interesting theses
written by ‘Rajagopal, Mohan Kumar’, Imperial College London. He covers quite a number of areas on various PSG systems, and touched briefly on different types of electrode contacts, wet and dry, and even foam, some of which I recognise mentioned, Wjcrof.
I’ll do some more research and make a decision. The next line of interest will probably be what type of electrode contact to use.
Thanks again Wjcroft