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A Middle Cerebral Artery Occlusion Technique for Inducing Post-stroke Depression in Rats
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Specific within-domain cognitive impairments predict depression severity six-months after stroke.

Kyle Kelleher1, Nele Demeyere2, Andrea Kusec2

  • 1Department of Experimental Psychology, University of Oxford, Anna Watts Building, Oxford, UK.

Topics in Stroke Rehabilitation
|September 23, 2025
PubMed
Summary

Specific cognitive impairments like calculation, memory, and attention are linked to post-stroke depression severity. Addressing these specific deficits in interventions may improve outcomes for stroke survivors.

Keywords:
Strokecognitioncognitive dysfunctionpost-stroke anxietypost-stroke depression

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Rehabilitation Medicine

Background:

  • Chronic cognitive impairments are common after stroke and linked to depression.
  • The specific relationship between different cognitive subtypes and depression severity post-stroke remains unclear.

Purpose of the Study:

  • To investigate the differential associations between specific within-domain cognitive impairments and depression severity six months after stroke.
  • To identify which cognitive deficits are most strongly related to post-stroke depression.

Main Methods:

  • 385 stroke patients (mean age 73.86 years) were assessed using the Hospital Anxiety and Depression Scale (HADS) and the Oxford Cognitive Screen (OCS).
  • Multiple regression analyses examined the unique contribution of OCS domain-specific and subtask-specific cognitive impairments to depression severity, controlling for anxiety and education.
  • Findings were corroborated using pooled multiply imputed data (N=430).

Main Results:

  • Calculation, episodic memory, picture naming, number writing, and visuospatial attention impairments were uniquely associated with higher depression severity.
  • These specific cognitive deficits showed significant relationships with depressive symptoms post-stroke.

Conclusions:

  • Certain within-domain cognitive impairments have distinct relationships with post-stroke depressive symptoms.
  • Targeting these specific cognitive deficits in interventions could potentially improve depression outcomes for stroke survivors.