Re: Projector maintenance - fMRI lamp changed

Further to my previous email, it has been suggested that users may want to "enter the bulb change into the GLMs even if they don't calibrate" .. this would attempt to regress out any systematic effect of the bulb change on your data.

To be clear, any data acquired as of 9am on Monday the 14th of May has been acquired with a new bulb; data acquired before that was with the old bulb.

Thanks

On 15/05/12 14:16, Andre Gouws wrote:

The lamp in the projector in MRI failed yesterday and had to be replaced. Any users who have luminance sensitive paradigms (i.e. who have calibrated their stimuli for luminance in the past) should consider repeating these measures and making any necessary changes as the lamp brightness may now be different.

Thanks,