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Spatial discrimination and visual discrimination: two methods evaluating learning and memory in juvenile Göttingen
Annika M J Haagensen1, Nanna Grand, Signe Klastrup
1Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark. amjh@sund.ku.dk
Behavioural Pharmacology
|April 2, 2013
Summary
Juvenile Göttingen minipigs successfully learned spatial and visual discrimination tests. These validated learning and memory assessments are suitable for preclinical toxicity testing in young pigs.
Area of Science:
- Neuroscience
- Toxicology
- Animal Behavior
Background:
- Preclinical toxicity testing requires reliable models for assessing cognitive functions.
- Juvenile Göttingen minipigs are increasingly used in research, but their learning and memory capabilities need further characterization for specific applications.
- Evaluating cognitive performance in young animals is crucial for understanding developmental neurotoxicity.
Purpose of the Study:
- To evaluate two distinct cognitive tests for their suitability in assessing learning and memory in juvenile Göttingen minipigs.
- To establish robust methodologies for preclinical toxicity testing using these minipigs.
- To determine if juvenile Göttingen minipigs can reliably perform spatial and visual discrimination tasks.
Main Methods:
- A spatial hole-board discrimination test was administered to twelve minipigs, including learning and memory phases with varying retention intervals.
- A visual discrimination test was conducted on five minipigs, involving discrimination between three visual stimuli.
- Performance metrics included learning speed, memory retention, and accuracy in both tasks.
Main Results:
- Minipigs demonstrated significant learning and memory improvements in the spatial hole-board test, with enhanced working and reference memory over time.
- Performance in memory phases was influenced by retention intervals, yet the animals retained the task concept.
- Minipigs successfully learned the visual discrimination task within 9-14 sessions, achieving high accuracy in subsequent memory tests.
Conclusions:
- Juvenile Göttingen minipigs possess the capacity to learn and retain information in both spatial and visual discrimination tasks.
- The established spatial hole-board and visual discrimination tests are viable systems for preclinical toxicity assessments in this model.
- These findings support the use of juvenile Göttingen minipigs as a model for evaluating cognitive effects in preclinical toxicology studies.
