in visual cortex in a rat at the time so he's had boatloads of boatloads of data so we just had that lab meeting well hey well I just put them in a dark box like so there's no light completely light-tight and see if you can actually and you have an accelerometer on the animal's head anyway because you know the minute you're putting electrodes and you might as well put an accelerometer in there too and then so we can record from from many tête roads so we have you know 60 16 tetrode 64 electrodes and we can record local field potentials and