Research overview: feline cognitive dysfunction syndrome

Aging cats can develop cognitive dysfunction syndrome, a decline in cognitive function analogous to dementia, manifesting as disorientation, altered social interactions, changes in sleep-wake cycles, increased vocalization especially at night, and house-soiling. The condition shares pathologic features with Alzheimer's disease, including beta-amyloid accumulation, making the cat a potential model. This overview synthesizes the geriatric and neurology literature rather than one citation, describing the behavioral signs and underlying brain changes, why it is underrecognized and often attributed to normal aging, and how environmental enrichment, diet, and supportive care may help. It matters because cognitive dysfunction affects quality of life for elderly cats and their owners, and recognizing it as a medical condition rather than mere old age opens the door to management strategies that improve welfare.