Beauchamp:Lab Notebook

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Brain picture
Beauchamp Lab




MRI

  1. UT-Only Wiki

Electrophysiology

Typical Protocol

Monday - electrode implantation
1. Check batteries on BAK stimulator, and change if reading lower than 115V (reads ~ 135V with brand new complement of batteries). Be very careful not to yank internal wires.
2. Check batteries on patient interface, and change if reading lower than 18V (reads ~ 27V with brand new complement of batteries).
3. Set up cabling for ITC to record from 16 channels (unplug channel 1 to test stimulation circuit).
4. Using the oscilloscope, check TTL pulse for gate and monitor out signal with stimulation circuit online.
5. Pick up CT scan from radiology library (signed HIPAA release required) after surgery (~11AM).
6. Merge 2nd structural MRI with CT on Stealth.
7. Merge 2nd structural MRI with CT on AFNI and view with functional activation on cortical surface to select candidate electrodes.
8. Have Lisa or Rodney jumper the candidate electrodes from the jackbox to our amplifiers.
9. Double check that the jumpered electrodes are the ones we want.
10. Make sure cart, display, and eye tracker are room-ready.
11. Have tape measure, several surgical grounding pads available.

Tuesday or Wednesday - experiments
1. Have Lisa or Rodney place scalp reference and ground electrodes. Check for good signals on all 16 channels.
2. Turn on KNOT.
3. Receptive Field Mapping
4. Electrical Stimulation

Orders

staples