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Related Concept Videos

Dementia l: Introduction01:22

Dementia l: Introduction

Dementia is an acquired, progressive syndrome characterized by a decline in multiple cognitive domains severe enough to impair daily functioning and reduce independence. Although memory loss is a central feature, the diagnosis requires additional deficits involving language, executive function, visuospatial skills, judgment, calculation, or abstract reasoning. These cognitive impairments reflect underlying neurodegenerative or vascular processes that gradually disrupt neuronal networks...
Dementia01:30

Dementia

Dementia is a collective term for cognitive disorders primarily affecting memory, thinking, and reasoning. It is not a specific disease but a syndrome, with Alzheimer's disease being the most common cause, accounting for approximately 60-80% of cases. Other types include vascular dementia, Lewy body dementia, and frontotemporal dementia. Dementia affects millions worldwide, particularly older adults, though it is not a normal part of aging.
The progression of dementia is generally gradual.
Alzheimer Disease l: Introduction01:29

Alzheimer Disease l: Introduction

Alzheimer disease is a chronic, progressive, and irreversible neurodegenerative disorder and the most common cause of dementia in older adults. It leads to gradual neuronal loss, causing cognitive decline, behavioral changes, and loss of functional independence.Risk Factors and EtiologyThe disease is multifactorial. Age is the strongest risk factor, with prevalence doubling every 5 years after age 65. Genetic factors include mutations in genes such as APP, PSEN1, and PSEN2, which are associated...
Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...
Alzheimer's Disease: Overview01:26

Alzheimer's Disease: Overview

Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ and tau...

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Related Experiment Video

Updated: Jun 14, 2026

Driving Simulation in the Clinic: Testing Visual Exploratory Behavior in Daily Life Activities in Patients with Visual Field Defects
11:12

Driving Simulation in the Clinic: Testing Visual Exploratory Behavior in Daily Life Activities in Patients with Visual Field Defects

Published on: September 18, 2012

How does dementia affect driving in older patients?

Brian R Ott1, Lori A Daiello

  • 1Department of Neurology, Warren Alpert Medical School of Brown University, RI, USA and The Alzheimer's Disease & Memory, Disorders Center, Rhode Island Hospital, RI, USA, Tel.: +1 401 444 6440, , bott@lifespan.org.

Aging Health
|April 7, 2010
PubMed
Summary

Driving impairment in older adults with dementia is linked to brain changes affecting visual processing and executive functions. Early screening and interventions are crucial, but driving cessation is inevitable as dementia progresses.

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Using Retinal Imaging to Study Dementia
09:17

Using Retinal Imaging to Study Dementia

Published on: November 6, 2017

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Last Updated: Jun 14, 2026

Driving Simulation in the Clinic: Testing Visual Exploratory Behavior in Daily Life Activities in Patients with Visual Field Defects
11:12

Driving Simulation in the Clinic: Testing Visual Exploratory Behavior in Daily Life Activities in Patients with Visual Field Defects

Published on: September 18, 2012

Using Retinal Imaging to Study Dementia
09:17

Using Retinal Imaging to Study Dementia

Published on: November 6, 2017

Area of Science:

  • Neuroscience
  • Gerontology
  • Ophthalmology

Background:

  • Degenerative dementia progressively impairs driving abilities in older adults.
  • Disruptions in visual processing circuits, particularly in the right hemisphere, are key factors.
  • This leads to increasing driving impairment and eventual inability to drive safely.

Purpose of the Study:

  • To highlight the link between cognitive decline in dementia and driving impairment.
  • To emphasize the role of neuropsychological tests in assessing driving competence.
  • To discuss potential interventions and the necessity of driving cessation.

Main Methods:

  • Review of cognitive changes associated with dementia and their impact on driving.
  • Analysis of neuropsychological tests assessing visuospatial ability, executive function, and attention.
  • Consideration of therapeutic interventions and exercise for cognitive enhancement.

Main Results:

  • Dementia-related disruption of occipital-prefrontal brain circuits impairs driving skills.
  • Neuropsychological tests can identify deficits relevant to driving competence.
  • Cognitive enhancement may offer partial risk mitigation, but driving cessation is ultimately required.

Conclusions:

  • Drivers with dementia face inevitable driving cessation as the condition advances.
  • Improved screening tools for hazardous driving are needed.
  • Interventions to prolong safe driving in early-stage dementia are essential for an aging population.