Related Experiment Videos
A relation between maze performance and increased ethanol intake in Long-Evans rats.
Lana M Pratt1, Shawn K E Gates, Brian R Smith
1Center for Studies in Behavioral Neurobiology, Department of Psychology, Concordia University, 1455 de Maisonneuve Boulevard West, H-1013, H3G 1M8, Montreal, Quebec, Canada. Pratt@csbn.concordia.ca
Alcohol (Fayetteville, N.Y.)
|May 15, 2002
Summary
Individual differences in maze learning ability correlate with ethanol consumption in rats. Better learning skills in rats were linked to higher ethanol intake, suggesting learning processes influence alcohol preference.
Area of Science:
- Neuroscience
- Behavioral Science
- Genetics
Background:
- Renewed interest in behavioral variables influencing ethanol consumption.
- Exploration of the relationship between maze learning ability and ethanol intake.
Purpose of the Study:
- To assess the correlation between maze learning performance and ethanol consumption.
- To investigate if learning ability predicts alcohol intake levels.
Main Methods:
- Sixty male Long-Evans rats were tested in a 16-arm T-maze for 19 days.
- Maze performance was quantified by errors and time, creating an overall maze index.
- Rats were then offered ethanol solutions (2%-10%) and separated into high and low drinker groups.
Main Results:
- A significant negative correlation was found between maze index and ethanol intake in high drinkers.
- Lower maze index scores (better performance) were associated with higher ethanol consumption in this group.
- No significant correlation was observed in the low drinkers group.
Conclusions:
- Individual variation in learning ability is linked to increased ethanol intake.
- Innate learning processes may be a relevant factor in understanding ethanol intake and preference.
- Behavioral traits like learning ability offer insights into the neurobiology of alcohol consumption.