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Related Experiment Videos

Phantom boarder symptom in dementia.

Jen-Ping Hwang1, Chen-Hong Yang, Shih-Jen Tsai

  • 1Department of Psychiatry, Veterans General Hospital-Taipei, Republic of China.

International Journal of Geriatric Psychiatry
|May 27, 2003
PubMed
Summary

Phantom boarder symptom (PBS), a misidentification common in Alzheimer's disease, affects 23.3% of dementia inpatients. This study found PBS more prevalent in older patients with higher onset ages and more hallucinations.

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Area of Science:

  • Geriatric Psychiatry
  • Neuropsychology
  • Cognitive Neurology

Background:

  • Phantom boarder symptom (PBS) is a perceptual dysfunction where individuals imagine unseen people in their environment.
  • PBS is frequently observed in Alzheimer's disease and can also occur in vascular dementia and other cognitive impairments.
  • Classifying PBS has been debated, with some considering it a misidentification rather than a delusion.

Purpose of the Study:

  • To determine the frequency and characteristics of phantom boarder symptom (PBS) in a sample of dementia inpatients.
  • To investigate the association between PBS and other psychotic symptoms in dementia patients.
  • To explore the classification of PBS as a misidentification versus a delusion.

Main Methods:

  • A cohort of 240 dementia patients admitted to a geropsychiatric ward was analyzed.

Related Experiment Videos

  • Patients were categorized into groups with and without PBS.
  • Comparisons were made regarding general characteristics and the presence of psychotic symptoms.

    • Main Results:

    • Phantom boarder symptom (PBS) was identified in 56 (23.3%) of the 240 dementia patients.
    • The PBS group had significantly higher mean ages and onset ages compared to the non-PBS group.
    • Hallucinations and other misidentifications were more prevalent in the PBS group, with no significant association found with delusions or physical aggression.

    Conclusions:

    • Phantom boarder symptom (PBS) is a common manifestation across various causes of dementia.
    • The findings support classifying PBS as a form of misidentification rather than a delusion.
    • Further research into the specific nature of PBS in dementia is warranted.