My patience has reached its breaking point
. Give me that word, or before four o'clock strikes, you will find yourself in a new chamber, among the corpses of those misguided fishermen, mariners of ancient days, and a few others.
Breaking points decreased in response to diluting the SCM with water.
We examined the effects of naloxone, an opioid antagonist, on the breaking points in free-fed Long-Evans rats responding for SCM under a PD schedule.
Statistical Procedures For statistical analysis, data from individual rats were first normalized by dividing measures (breaking points and responses per reinforcer) taken at each dose of drug by mean control (saline) data and multiplying by 100.
Figure 1 depicts the dose-response curves for the breaking points and the number of lever presses per reinforcer delivery for all rats.
Figure 2 depicts group data normalized as the percentage of control for the breaking points (top panel) and the lever presses per reinforcer (bottom panel).
Both investigations found that naloxone reduced breaking points in organisms responding for palatable food under PR schedules.