ACSF, no TENS | 4 (3–5) | 4.5 (3–5) | 4 (3–4) |
ACSF + low frequency TENS | 4 (3–4) | 4 (2–5) | 3 (2–4) |
ACSF + high frequency TENS | 4.5 (4–5) | 4.5 (4–5) | 4 (3–5) |
10 mM naloxone + low TENS | 4 (3–5) | 4 (3–4) | 4 (3–4) |
5 mM naloxone + low TENS | 4 (3–5) | 5 (3–5) | 4 (3–5) |
1 mM naloxone + low TENS | 3 (3–4) | 4 (3–4) | 4 (3–4) |
10 mM naloxone + high TENS | 4 (3–4) | 4 (4–5) | 4 (3–4) |
5 mM naloxone + high TENS | 4 (3–5) | 4 (4–5) | 4 (3–4) |
1 mM naloxone + high TENS | 4 (3–4) | 4 (3–4) | 4 (3–5) |
1 mM naltrinodole + low TENS | 4 (3–5) | 4 (3–5) | 4 (3–4) |
1 mM naltrinodole + high TENS | 4 (3–5) | 4 (3–5) | 4 (2–5) |
0.1 mM naltrinodole + high TENS | 4 (4) | 4 (4) | 4 (3–4) |
0.01 mM naltrinodole + high TENS | 4 (3–4) | 4 (2–4) | 4 (3–4) |
10 μM nor BNI + low TENS | 4 (4) | 4 (4–5) | 4 (3–5) |
10 μM nor BNI + high TENS | 4 (2–4) | 4 (3–4) | 4 (3–4) |