Date: 2021-02-11 Experiment: WT DREADD awake DG + CA3 Experimenter: Mariela Objective: in awake 4x16 probe in DG 32 linear 25 um probe in CA3 at 20 deg angle SURGERIES Mouse : 4496 - 1 dot , DOB 16-12-2020 , 23.4 g injection: LV-160 / pLenti225.CamKII.hM4D(Gi)-mCherry Solutions: ACSF 2018 10:15 iso induction + bupre 11:05 Injection site = (0,0,0) ==> DG marks (-0.75;0.5), (0.25;-0.5), CA3 marks at (1.25;-0.25), (0.25,1.25) ==> center (0.72;0.60). 11:50 craniotomy DG = ok, CA3 ok 12:15 Recovery RECORDINGS Mouse : 4496 - 1 dot , DOB 16-12-2020 , 23.4 g injection: LV-160 / pLenti225.CamKII.hM4D(Gi)-mCherry 13:45 Removed the silicon, OK 14:05 zero S404 in the middle of the DG craniotomy. some bleeding zero CCO5 in the middle of the CA3 craniotomy take impedances S404 (0.01;-0.08,-2.21) 14:50 CA1 1310-1550 CA1 all shanks (shank 4 is the latest to reach CA 1) SWR go up above the layer, and down below CA1. DS go down above the layer and up in the 2/3rd of the layer itself We stop as soon as we hear spike, because they are most likely from CA3 All deepst channel to be up and all the shallow to be down Heard spikes 2110 - shanks 1, 2 and 3 Saw dentate spike reversal : yes 15:40 CCO5 (0;0;-2.790) 1490- 1750 CA1 2500-2790 CA3 we stopped at -2.79 There is noise, ears or hair touching probe or head bar???? check grounding of the probe??? 16:30 Recording 1 17:00 Inject 200uL CNO, then recording 2 17:30 Recording 3 18:15 remove probes 18:30 ket/xyl 0.35ml IP - sac CC05 had noise during several moments of the recordings (hair/ear touching the probe?) Notes for histology: 4406 CA3: 20 deg, DiI (1*1 marks total) DG: 0 deg, DiI x (1*4 marks total) TdTomato