Characterizing cognitive aging of working memory and executive function in animal models

Area of Science:

• Neuroscience
• Cognitive Aging
• Behavioral Science

Background:

• Executive functions, controlled by prefrontal cortex (PFC), guide goal-directed behavior.
• Age-related decline in executive functions leads to widespread neurocognitive deficits.
• Rodent models offer valuable insights due to preserved PFC characteristics and genetic accessibility.

Purpose of the Study:

• To review behavioral approaches for studying executive function in rodents.
• To focus on models relevant to human cognitive aging, particularly working memory and cognitive flexibility.
• To discuss potential rodent analogs for other age-declining functions like processing speed.

Main Methods:

• Review of behavioral assays used in rodent studies of executive function.
• Emphasis on assays aligned with human psychological and neuroanatomical constructs of aging.
• Inclusion of working memory, cognitive flexibility, and information processing speed assessments.

Main Results:

• Rodent models provide meaningful cross-species comparisons for cognitive aging research.
• Behavioral assays for working memory and cognitive flexibility are sensitive to age-related decline.
• Rodent analogs are essential for developing and testing interventions for age-related cognitive decline.

Conclusions:

• Rodent models are vital for elucidating neurobiological mechanisms of executive function decline.
• Behavioral research in rodents aids in creating targeted therapies for age-related cognitive impairment.
• Further exploration of rodent behavioral analogs can advance understanding of human cognitive aging.