Alzheimer’s Patients Have Atypical Driving Habits: Study

Researchers studying brain maps during an aging study have concluded that Alzheimer‘s patients have different driving habits than those without the disorder. Their findings help solve a long-standing mystery in my family.

Scientists working on the Mayo Clinic Study of Aging examined 892 subjects considered cognitively normal to create a schematic of the human brain, according to Medical News Today. They discovered that activity lingers for a longer period of time in the brains of patients with Alzheimer’s disease than it does in those without the illness.

The researchers likened brain activity to a highly technical network in which two or more objects share information along various pathways. However, they still have much to learn about which areas of the brain map to the various objects.

The study mapped 68 functional regions of the brain that corresponded to cities on a map. It employed MRI technology on the healthy subjects when they weren’t involved in any particular task. Researchers determined that many roads were available in the brain to exchange information and that the brain chooses different paths at different times.

When they compared these findings to brain activity of Alzheimer’s patients, the results were significantly different. The Alzheimer’s group showed a definite preference for some roads over others, choosing some a lot more than the rest.

The Alzheimer’s Association says that the disorder represents the sixth-leading cause of death in the United States. It has 5.4 million U.S. victims, including 1 in 8 older Americans. Estimates suggest that 800,000 patients with this most-common form of dementia — 1 in 7 — live alone.

Members of my family suspected for years that my grandmother’s husband, my father’s stepfather, suffered from Alzheimer’s disease. He was never diagnosed with it but showed symptoms. The couple married when both were in their 70s. She never learned to drive and enjoyed his habit of driving all over the state to visit relatives.

My grandmother said that signs of dementia appeared fairly suddenly. Because her new husband barely drove the speed limit, he avoided interstate highways. Soon the complaints from his #1 passenger came fast and furious. When there were two ways to get to a relative’s home, he started taking the longer and less-comfortable one.

My grandmother, the map reader for new destinations, began to wonder what was wrong with him. He had a lot of trouble learning a new driving route, one important sign of Alzheimer’s, according to the National Highway Traffic Safety Association. She said he also went out of his way to avoid left turns, another sign.

Because he died suddenly, without a diagnosis of dementia, the family always wondered if he had Alzheimer’s, considered a mysterious ailment at the time. Based on the results of the study and his atypical driving habits, it seems a reasonable conclusion.

Vonda J. Sines has published thousands of print and online health and medical articles. She has a special interest in diseases and other conditions that affect the quality of life.

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