Related Experiment Videos
Effects of aging on visual recognition memory in the rhesus monkey
M B Moss1, D L Rosene, A Peters
1Department of Anatomy, Boston University School of Medicine, MA 02118.
Neurobiology of Aging
|September 1, 1988
Summary
Aged rhesus monkeys showed impaired memory performance on a delayed nonmatching to sample task compared to younger adults. This suggests rhesus monkeys may serve as a valuable model for studying age-related memory decline in humans.
Area of Science:
- Neuroscience
- Primatology
- Gerontology
Background:
- Human aging is often associated with cognitive decline, particularly memory dysfunction.
- Developing animal models is crucial for understanding the mechanisms of age-related memory impairment and testing interventions.
Purpose of the Study:
- To evaluate the performance of aged rhesus monkeys on a memory task that models human cognitive aging.
- To determine if rhesus monkeys exhibit age-related deficits in recognition memory.
Main Methods:
- Six aged (26-27 years) and six young (4-5 years) rhesus monkeys performed a trial unique delayed nonmatching to sample (DNMS) task.
- The task involved three stages: acquisition, delays, and lists, assessing novel stimulus identification over a delay.
Main Results:
- Aged monkeys, as a group, were significantly impaired compared to young monkeys across all task conditions.
- Individual aged monkeys showed variability in performance, with some performing efficiently.
- Analysis indicated aged animals had increased sensitivity to proactive interference, evidenced by a lack of list-end advantage.
Conclusions:
- Aged rhesus monkeys demonstrate recognition memory impairments comparable to those seen in human aging.
- The rhesus monkey serves as a suitable primate model for investigating age-related memory dysfunction and its underlying mechanisms.