Location of implanted tungsten electrode arrays
| Brain region | Number of electrodes | Coordinates (mm from bregma and top of brain) | ||
| A/P | M/L | D/V | ||
| Bilateral anterior cingulate | 2 per hemisphere | 2.5 | ±.5 | 1.6 |
| Bilateral orbitofrontal cortex | 2 per hemisphere | 3.7 | ±2 | 3.8 |
| Bilateral anterior insula | 4 per hemisphere | 2.2 | ±4 | 4.5 |
| Bilateral basolateral amygdala | 4 per hemisphere | -3 | ±5.0 | 7.5 |
| Bilateral olfactory amygdala | 3 per hemisphere | -1.4 | ±3.2 | 8.8 |