contact_id	probe_id	impedance	impedance_unit	x	y	z	xyz_units	material
con0	pro1	12	MΩ	-0.2	0.2	4.97	mm	1.5% (w/v) neurobiotin (Vector Laboratories, Burlingame, CA,USA) and 2% (w/v) NaCl
con1	pro1	12	MΩ	-0.2	0.2	4.97	mm	1.5% (w/v) neurobiotin (Vector Laboratories, Burlingame, CA,USA) and 2% (w/v) NaCl