expt1: Linear track & airpuffs, HPC dense CA1 with 30 um DG LFP on shank 1, IL double row, MEC, LEC single row
-- rec1: 20 min HC
-- rec2-4: Linear, no airpuff
-- rec5-6: Linear w/ airpuff, CAUTION: contact on air pistol became loose during experiment, correct time stamps towards end of track. rec 5 or 6 have two .tak, one is only few seconds
-- rec7: HC post 10 min
-- rec8: HC post 

expt2: 5 mm 4 shank
expt3: 10 mm 2 shank