EMI from primeX 13 cameras

[amirlev8]

I'm using 8 primeX 13 cameras in tracking the movement of an animal while recording electrical signals from the animal brain. The recording from the brain is showing strong spikes of EMI which I found is due to the IR LEDs located on the cameras. In short, the LEDs are turned on and off when a frame is being captures, generating a strong EMI signals. I wanted to know if there is a way to keep the LEDs constantly on instead of flashing them at the camera's frame rate. Any ideas?