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Moderate Prenatal Alcohol Exposure and Quantification of Social Behavior in Adult Rats
Published on: December 14, 2014
Pup exposure differentially enhances foraging ability in primiparous and nulliparous rats
K G Lambert1, A E Berry, G Griffins
1Department of Psychology, Randolph-Macon College, Ashland, VA 23005, USA. Klambert@emc.edu
Physiology & Behavior
|May 12, 2005
Summary
Maternal experience, including pregnancy and pup exposure, significantly improves foraging performance in rats. Pup exposure alone enhanced performance, suggesting it
Area of Science:
- Neuroscience
- Behavioral Biology
- Animal Cognition
Background:
- Maternal behavior is crucial for offspring survival.
- Understanding the specific influences of maternal experience on cognitive functions like foraging is important for maternal care research.
Purpose of the Study:
- To investigate the impact of maternal experience, specifically pregnancy and pup exposure, on rats' performance in a dry land maze (DLM) foraging task.
- To differentiate the effects of pregnancy versus pup exposure on spatial and cued foraging behaviors.
Main Methods:
- Primiparous (experienced mothers) and nulliparous (naive) female rats were divided into groups with or without 21-day pup exposure.
- All rats underwent habituation and were then tested in spatial and cued versions of the DLM over three days.
- Performance was measured by latency to find baited wells and time spent near baited wells during a probe trial.
Main Results:
- Pup exposure decreased latencies in both naive and experienced rats in the spatial DLM.
- Rats with pup exposure (P+) showed shorter latencies and spent more time near baited wells in the spatial task compared to those without (P-).
- Pup exposure enhanced performance in both naive and experienced rats in the cued version of the task.
Conclusions:
- Maternal experience, encompassing pregnancy and pup interaction, enhances foraging efficiency in rats, likely supporting offspring care.
- Isolated pup exposure can significantly improve foraging performance, potentially indicating it's a key driver of ancillary maternal behaviors compared to pregnancy alone.
