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Related Concept Videos

Association Areas of the Cortex01:21

Association Areas of the Cortex

Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
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...
Alzheimer Disease ll: Pathophysiology01:23

Alzheimer Disease ll: Pathophysiology

Alzheimer disease involves structural changes in the brain that begin long before symptoms appear. The most distinctive features are extracellular neuritic plaques and intracellular neurofibrillary tangles.Neuritic plaques form in the cerebral cortex and around blood vessels. These plaques contain a dense core of beta-amyloid (Aβ)—a toxic protein fragment that clumps outside neurons. The core is surrounded by damaged neuronal extensions, as well as reactive astrocytes and microglia. Abnormal...
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...
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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 20, 2026

Abbiategrasso Brain Bank Protocol for Collecting, Processing and Characterizing Aging Brains
12:28

Abbiategrasso Brain Bank Protocol for Collecting, Processing and Characterizing Aging Brains

Published on: June 3, 2020

Early features in frontotemporal dementia.

Ana María Villamizar Caycedo1, Bruce Miller, Joel Kramer

  • 1Memory and Aging Center, Department of Neurology, UCSF, USA. krascovsky@memory.ucsf.edu

Current Alzheimer Research
|August 20, 2009
PubMed
Summary
This summary is machine-generated.

Frontotemporal dementia (FTD) affects brain circuitry, leading to behavioral changes like addiction and apathy. While treatments manage symptoms, developing disease-modifying therapies for FTD is a promising future direction.

Related Experiment Videos

Last Updated: Jun 20, 2026

Abbiategrasso Brain Bank Protocol for Collecting, Processing and Characterizing Aging Brains
12:28

Abbiategrasso Brain Bank Protocol for Collecting, Processing and Characterizing Aging Brains

Published on: June 3, 2020

Area of Science:

  • Neuroscience
  • Neurology
  • Genetics

Background:

  • Frontotemporal dementia (FTD) is a neurodegenerative disorder impacting paralimbic prefrontal-insular brain circuits.
  • FTD presents with a range of behavioral symptoms, including addiction, disinhibition, apathy, and impaired social cognition.
  • While often sporadic, FTD can arise from genetic mutations in genes such as tau, progranulin, valosin, TDP-43, and CHMP2b.

Purpose of the Study:

  • To summarize the current understanding of frontotemporal dementia.
  • To highlight the genetic underpinnings and clinical manifestations of FTD.
  • To discuss the potential for future disease-modifying treatments.

Main Methods:

  • Literature review of FTD research.
  • Analysis of genetic factors associated with FTD.
  • Clinical symptomology assessment.

Main Results:

  • FTD is characterized by dysfunction in specific brain circuitry.
  • Genetic mutations play a significant role in the etiology of FTD.
  • Key clinical features include significant behavioral and personality changes.

Conclusions:

  • Current FTD management focuses on symptomatic relief.
  • The feasibility of developing disease-modifying therapies for FTD is supported by current research.
  • Further investigation into FTD pathogenesis may unlock novel therapeutic strategies.