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Personal Identity01:25

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Personal identity is the deeply felt sense of self that individuals cultivate over time, intricately woven from intrinsic qualities they consider essential to their existence—qualities such as morality, intelligence, and friendliness. These attributes serve as vital internal benchmarks, guiding individuals in evaluating whether their actions resonate with their true selves.When personal identity takes center stage in one's life, individuals often emphasize their distinctiveness,...
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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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Dementia01:30

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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.
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Dementia and personal identity: implications for decision-making.

Winston Chiong1

  • 1Department of Neurology, Memory and Aging Center, University of California, San Francisco and Helen Wills Neuroscience Institute, University of California, Berkeley, CA, USA.

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Summary

Dementia alters personality and judgment, raising questions about personal identity and decision-making. Caregivers must weigh premorbid versus current patient values, impacting advance directives and future planning for those with dementia.

Keywords:
Alzheimer’s diseaseadvance directivesautonomyfrontotemporal dementiapresymptomatic diagnosis

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Area of Science:

  • Neuroscience
  • Philosophy
  • Bioethics

Background:

  • Dementia significantly alters personality and judgment, posing complex ethical dilemmas.
  • These changes challenge traditional notions of personal identity and autonomy.

Purpose of the Study:

  • To explore the philosophical and practical implications of altered personal identity in dementia.
  • To examine how to guide care decisions considering premorbid versus current patient values.

Main Methods:

  • Philosophical analysis of personal identity theories in the context of dementia.
  • Review of ethical arguments regarding precedent autonomy and advance directives.

Main Results:

  • Conflicting views exist on whether a dementia patient is the same person as before the disease onset.
  • Arguments support respecting either premorbid values or current patient needs.

Conclusions:

  • The debate on personal identity in dementia impacts the interpretation of advance directives.
  • It also informs decisions for individuals with dementia gene mutations regarding their future care.