Related Experiment Videos
Effects of angiotensin on drinking
Pharmacology, Biochemistry, and Behavior
|January 1, 1976
Summary
Angiotensin II enhances water consumption across various stimuli, including salt intake and food deprivation. It also affects behavior, reducing lever pressing while increasing drinking in schedule-induced conditions.
Area of Science:
- Neuroscience
- Behavioral Neuroscience
- Physiology
Background:
- Angiotensin II is a key hormone in regulating fluid balance and blood pressure.
- Its role in eliciting drinking behavior under different physiological conditions requires further elucidation.
Purpose of the Study:
- To investigate the effects of angiotensin II on drinking behavior induced by various stimuli.
- To examine the influence of angiotensin II on eating and schedule-dependent behaviors.
Main Methods:
- Four experiments were conducted using different stimulation paradigms.
- Doses of angiotensin II were administered to assess effects on ad libitum intake, water deprivation, schedule-induced behaviors, and prandial drinking.
- Behavioral measures included water consumption, eating, licking, and lever pressing.
Main Results:
- Angiotensin II produced an additive enhancement of water consumption when combined with NaCl.
- Dose-dependent increases in drinking were observed in water-deprived animals.
- Angiotensin II decreased lever pressing but increased water consumption in schedule-induced conditions without increasing licking.
- Angiotensin II also increased water consumption in food-deprived animals.
Conclusions:
- Angiotensin II potently stimulates drinking behavior under diverse conditions.
- The hormone exhibits differential effects on drinking, eating, and operant responding, suggesting complex regulatory roles.