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Impaired executive functioning after left anterior insular stroke: a case report.

Ioanna Markostamou1, Jobst Rudolf, Iakovos Tsiptsios

  • 1a Laboratory of Cognitive Neuroscience, School of Psychology , Aristotle University of Thessaloniki , Thessaloniki , Greece.

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Summary

An acute left anterior insular infarction caused executive dysfunction, including impaired attention and cognitive flexibility. This case highlights the insula's crucial role in executive functions.

Keywords:
executive functioninginsulalesionstroke

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Area of Science:

  • Neuroscience
  • Neurology

Background:

  • The insula, a complex brain region, is interconnected and involved in various functions.
  • Acute lesions can cause diverse neurological deficits, but specific clinical manifestations of insular damage are not fully understood.

Observation:

  • A case study of a woman with an acute left anterior insular infarction was analyzed.
  • The patient presented with specific executive function impairments.

Findings:

  • The infarction resulted in deficits in word and design fluency, mental flexibility, sustained attention, and inhibitory control.
  • Notably, the patient did not exhibit language, visuoperceptual, or memory impairments.

Implications:

  • This case confirms the left anterior insula's significant role in executive functioning.
  • It suggests that acute insular infarction can lead to executive impairment, underscoring the need for targeted clinical assessment.