Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Percent of neurons showing a change in ongoing activity following morphine or saline administration Initial Median
| Experiment | Neurons | Activity (Hz) | Increase (%) | No change (%) | Decrease (%) |
|---|---|---|---|---|---|
| Anesth.—Morphine | 22 | 0.6 | 36 | 32 | 32 |
| Awake—Morphine | 27 | 0.7 | 81 | 19 | 0 |
| Awake—Saline | 22 | 1.0 | 27 | 41 | 32 |
