Table 1.
Human head tissue resistivity and conductivity values.
| Tissue | Mean Resistivity with lower/upper bounds (Ohm cm) | Mean Conductivity (S/cm) |
|---|---|---|
| Air Internal | 50,000 (50,000 to 100,000) | 2E-5 |
| Air External | 100,000 | 1E-6 |
| Basal Ganglia | 700 | 1.42E-3 |
| Blood | 160 (80 to 240) | 6.25E-3 |
| Brain White Matter | 700 (350 to 1,050) | 1.42E-3 |
| Brain Gray Matter | 300 (150 to 450) | 3.334E-3 |
| Cerebellum | 650 (325 to 975) | 1.54E-3 |
| Cerebrospinal Fluid | 65 (32.5 to 97.5) | 1.54E-2 |
| Corpus Callosum | 834 | 1.199E-3 |
| Dura | 1,667 (1,000 to 5,000) | 6E-4 |
| Eye | 200 (100 to 400) | 5E-3 |
| Fat | 2,500 (1,250 to 5,000) | 4E-4 |
| Muscle | 1,000 (200 to 1,800) | 1E-3 |
| Salivary Glands | 576 | 1.74E-3 |
| Scalp and Skin | 230 (115 to 345) | 4.35E-3 |
| Skull Hard Bone | 16,000 (8,000 to 40,000) | 6.25E-5 |
| Skull Soft Bone | 2,500 (1,250 to 3,750) | 4E-4 |
| Soft Tissue | 500 (250 to 750) | 2E-3 |
| Thalamus | 112 | 8.93E-3 |
Mean values and lower and upper bounds of some of the tissues are included.