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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...
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Related Experiment Video

Updated: May 19, 2026

Symmetric Bihemispheric Postmortem Brain Cutting to Study Healthy and Pathological Brain Conditions in Humans
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ALS and Frontotemporal Dysfunction: A Review.

Eugene Y Achi1, Stacy A Rudnicki

  • 1Department of Neurology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.

Neurology Research International
|August 25, 2012
PubMed
Summary
This summary is machine-generated.

Amyotrophic lateral sclerosis (ALS) can affect cognition, leading to frontotemporal dysfunction or dementia (FTD). These cognitive changes impact survival and treatment adherence in ALS patients.

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Area of Science:

  • Neurology
  • Neuroscience
  • Cognitive Science

Background:

  • Amyotrophic lateral sclerosis (ALS) was historically considered a motor neuron disease.
  • Emerging evidence indicates cognitive changes in a subset of ALS patients.
  • These changes align with frontotemporal dysfunction, ranging from subtle to severe frontotemporal dementia (FTD).

Purpose of the Study:

  • To explore the spectrum of cognitive changes associated with ALS.
  • To identify key areas of cognitive involvement in ALS patients.
  • To understand the implications of cognitive dysfunction on patient outcomes and treatment adherence.

Main Methods:

  • Neuropsychological testing for executive function, behavior, and language.
  • Screening tools including verbal/categorical fluency tests.
  • Caregiver-reported behavioral inventories and assessment for depression and pseudobulbar affect.

Main Results:

  • Cognitive deficits in ALS patients primarily involve executive function, behavior, and language.
  • Screening methods effectively detect these cognitive abnormalities.
  • Cognitive dysfunction is linked to reduced survival and poorer adherence to supportive care recommendations like feeding tubes and ventilation.

Conclusions:

  • ALS is increasingly recognized as a multisystem disorder with significant cognitive components.
  • Understanding the ALS-FTD spectrum is crucial for comprehensive patient management.
  • Cognitive assessment and management are vital for improving outcomes in ALS patients.