Table 2. The brain areas recorded in each implant.

The implant numbers are the same as in Table 1 and in Figure 4—figure supplement 4. No recording was obtained from implants #9, 11, 15 due to poor signal quality.

Brain area	Implant #	Animal ID	Probe serial number	Animal’s age on the time of implant (day)	Number of times the probe was previously implanted	Insertion depth (mm)	Number of electrodes in the brain area	Shank plane angle relative to the sagittal plane (°)	Center of mass of electrodes in the brain area (mm)
									AP	ML	DV
Dorsomedial frontal cortex	1	T176	619040938	493	0	4.2	170	0	4	0.8	-1.1
	12	T212	17131312432	459	0	4.2	174	0	4	0.8	-1
	17	T224	17131312432	520	1	4.2	174	0	4	0.8	-1
	21	T249	17131312432	338	2	4.2	186	0	4	1	-1.1
Ventromedial frontal cortex	1	T176	619040938	493	0	4.2	213	0	4	0.5	-3
	12	T212	17131312432	459	0	4.2	209	0	4	0.5	-2.9
	17	T224	17131312432	520	1	4.2	209	0	4	0.5	-2.9
	21	T249	17131312432	338	2	4.2	197	0	4	0.7	-3
Motor cortex	2	T181	17131306102	238	0	8.2	214	90	1.9	1.7	-1.4
	3	T182	17131311881	244	0	8.2	214	90	1.9	1.7	-1.4
	14	A241	18194823631	372	0	10	27	90	0.7	2.2	-2.2
	16	A243	18194824132	374	0	9	48	90	0.7	2.4	-1.4
	18	T219	18194824092	523	0	8	241	0	1.3	2.4	-1.3
	19	T223	19051017162	528	0	7.9	241	0	1.3	2.4	-1.2
	22	T227	18194819542	557	0	8.4	241	0	1.4	2.4	-1.7
Dorsomedial striatum	2	T181	17131306102	238	0	8.2	198	90	1.9	2.3	-3.8
	3	T182	17131311881	244	0	8.2	236	90	1.9	2.3	-3.7
	8	K265	17131311562	656	0	7	234	0	1.9	2.2	-3.9
	10	A230	17131308571	420	0	6.6	184	90	0.8	3.9	-3.5
	13	A241	18194823302	372	0	10	199	90	-0.6	3.9	-3.7
	14	A241	18194823631	372	0	10	219	90	0.7	2.3	-3.5
	16	A243	18194824132	374	0	9	250	90	0.7	2.4	-3.3
	18	T219	18194824092	523	0	8	270	0	2	2.4	-3.8
	19	T223	19051017162	528	0	7.9	270	0	2	2.4	-3.7
	20	A249	18194819132	393	0	6.8	256	0	1.8	2.1	-4
	22	T227	18194819542	557	0	8.4	270	0	2.1	2.4	-4.2
Nucleus accumbens	2	T181	17131306102	238	0	8.2	191	90	1.9	2.9	-5.9
	3	T182	17131311881	244	0	8.2	176	90	1.9	2.9	-5.9
	8	K265	17131311562	656	0	7	149	0	1.9	2.9	-5.7
	18	T219	18194824092	523	0	8	255	0	2.7	2.4	-6.3
	19	T223	19051017162	528	0	7.9	255	0	2.7	2.4	-6.2
	20	A249	18194819132	393	0	6.8	127	0	1.7	2.1	-5.9
	22	T227	18194819542	557	0	8.4	255	0	2.8	2.4	-6.7
Piriform areas	2	T181	17131306102	238	0	8.2	115	90	1.9	3.2	-7.2
	3	T182	17131311881	244	0	8.2	106	90	1.9	3.2	-7.2
Primary somatosensory cortex	7	A242	17131311621	258	0	7.6	353	90	-2.3	5.1	-1.8
	13	A241	18194823302	372	0	10	58	90	-0.6	3.9	-2.4
Ventral pallidum	16	A243	18194824132	374	0	9	99	90	0.7	2.5	-6.6
Amygdaloid complex	7	A242	17131311621	258	0	7.6	70	90	-2.4	5.6	-7
	13	A241	18194823302	372	0	10	208	90	-0.6	3.7	-8.7
	16	A243	18194824132	374	0	9	69	90	0.7	2.5	-8.5
Striatum tail	7	A242	17131311621	258	0	7.6	209	90	-2.3	5.4	-5.1
Dorsal-posterior cortex	4	T179	17131311342	505	0	5.8	109	0	-7	3	-0.9
Postsubiculum	4	T179	17131311342	505	0	5.8	112	0	-7	3	-2.4
Superior colliculus	5	T196	17131312042	410	0	8	239	0	-7.2	1.6	-4
	6	T209	17131311352	370	0	7.8	190	0	-7.4	1.4	-3.6
Posterior tectum	4	T179	17131311342	505	0	5.8	259	0	-7	3	-4.3
	5	T196	17131312042	410	0	8	144	0	-7.2	2.9	-5.4
	6	T209	17131311352	370	0	7.8	193	0	-7.4	2.7	-5.1
Globus pallidus	16	A243	18194824132	374	0	9	139	90	0.7	2.5	-5.4
Bed nucleus of the stria terminalis	14	A241	18194823631	372	0	10	221	90	0.7	2.3	-5.7
Preoptic area	14	A241	18194823631	372	0	10	299	90	0.7	2.4	-8.3
	16	A243	18194824132	374	0	9	100	90	0.7	2.5	-7.6