Gadgetastic
- Nov 22, 2011
- 27
- Joined
- Nov 22, 2011
- Messages
- 27
Okay, here's another question that will show just what a newbie I am in electronics.
I'm looking at a circuit where it is VERY important to know which output is cathodal and which is anodal. For background, I'm researching medical uses of trans-cranial direct current stimulation as an inexpensive replacement for meds.
So, in tDCS a very small current (2mA) is delivered through the scalp to surface regions of the brain. Anodal has one effect, cathodal has another.
If I have wires connected to a battery, one to the + terminal and one to the - terminal, which are then connected to electrodes (the actual circuit is somewhat more complex but you get the idea) which electrode will be cathodal and which will be anodal?
I've checked online and in some books, but it still seems confusing and it's important I don't get this wrong, so this is my quadruple check.
I'm looking at a circuit where it is VERY important to know which output is cathodal and which is anodal. For background, I'm researching medical uses of trans-cranial direct current stimulation as an inexpensive replacement for meds.
So, in tDCS a very small current (2mA) is delivered through the scalp to surface regions of the brain. Anodal has one effect, cathodal has another.
If I have wires connected to a battery, one to the + terminal and one to the - terminal, which are then connected to electrodes (the actual circuit is somewhat more complex but you get the idea) which electrode will be cathodal and which will be anodal?
I've checked online and in some books, but it still seems confusing and it's important I don't get this wrong, so this is my quadruple check.