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Persistent autobiographical amnesia: a case report.

C Repetto1, R Manenti, V Sansone

  • 1IRCCS San Giovanni di Dio FBF, Brescia, Italy. claudia.repetto@cognitiveneuroscience.it

Behavioural Neurology
|February 14, 2007
PubMed
Summary
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A man experienced sudden amnesia and motor issues due to high blood pressure. While his acute symptoms resolved, he developed lasting retrograde amnesia, suggesting a functional cause.

Area of Science:

  • Neuroscience
  • Neurology
  • Psychiatry

Background:

  • Sudden onset of global amnesia and mild motor impairment can be linked to transient neurological events.
  • Hypertension is a significant risk factor for cerebrovascular and neurological disorders.

Observation:

  • A 47-year-old male presented with acute global amnesia and left-sided motor impairment, associated with elevated blood pressure.
  • The acute episode resolved within 24 hours, but a persistent deficit in autobiographical memory retrieval emerged.
  • Neuropsychological testing revealed a selective retrograde memory deficit, with preserved anterograde memory and learning.

Findings:

  • Brain Magnetic Resonance Imaging (MRI) was unremarkable.
  • Positron Emission Tomography (PET) scans showed transient hypometabolism in the right globus pallidus and putamen.

Related Experiment Videos

  • The persistent autobiographical memory impairment, despite normal imaging and resolving metabolic changes, points towards a functional etiology.

    • Implications:

    • This case highlights functional retrograde amnesia as a potential diagnosis in patients with transient neurological symptoms and selective memory loss.
    • Understanding the neurobiological underpinnings of functional amnesia is crucial for accurate diagnosis and management.
    • Further research into the interplay between physiological stress, brain function, and memory is warranted.