Related Experiment Video
Updated: May 12, 2026
08:31
Place and Response Learning in the Open-field Tower Maze
Published on: October 28, 2015
Age-related changes in place learning for adjacent and separate locations
Enrique I Gracian1, Laura E Shelley, Andrea M Morris
1Department of Psychology, San Diego State University, San Diego, CA, USA.
Neurobiology of Aging
|April 27, 2013
Summary
Older rats make more errors in spatial learning tasks with high interference. Age-related brain changes may impair spatial pattern separation efficiency in aged animals.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Gerontology
Background:
- Age-related cognitive decline is a significant concern.
- Understanding the neural mechanisms underlying age-related deficits in spatial learning is crucial.
Purpose of the Study:
- To investigate the impact of spatial interference on place learning in young and old rats.
- To determine if age-related differences in spatial learning are exacerbated by high spatial interference.
Main Methods:
- Rats were trained on a radial 8-arm maze.
- Two conditions were used: high spatial interference (adjacent arms) and low spatial interference (arms separated by two positions).
- Performance was measured by the number of errors and trials to reach criterion.
Main Results:
- Old rats made significantly more errors than young rats under high spatial interference conditions.
- No significant group differences in errors were observed under low spatial interference conditions.
- No group differences were found in the number of trials to reach the learning criterion in either condition.
Conclusions:
- Age-related brain changes lead to increased errors in place learning, especially with high spatial interference.
- Spatial pattern separation may be less efficient in aged animals.
- These findings highlight the vulnerability of spatial memory to interference in aging.
