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Localization of Free-Field Sound Sources in the Chronic Phase of Mild Ischemic Stroke

A dispatch from PubMed — filed

Accurate sound localization relies on the transformation of binaural cues into stable spatial representations, yet the neural mechanisms supporting this process remain incompletely understood. Mild stroke provides a unique opportunity to study the vulnerability of auditory spatial processing within distributed neural networks....

Clinical Takeaway

Audiologists seeing post-stroke patients should be aware that even mild ischemic stroke can impair sound localization and binaural processing; formal binaural assessment may be warranted in this population, though practice protocols are not yet established from this single study.

Why It Matters

Identifying binaural hearing deficits after mild stroke highlights an underappreciated audiological consequence of cerebrovascular disease and may open new avenues for audiological rehabilitation in stroke survivors.

Key Points
  1. 01Study focuses on sound localization in the chronic (stable, long-term) phase after mild ischemic stroke.
  2. 02Examines neural processing of interaural time and level differences (the cues used to locate sounds).
  3. 03Published in Trends in Hearing (2026), an open-access auditory neuroscience journal.
  4. 04Findings suggest stroke-related central auditory processing changes persist over time.
  5. 05Has potential implications for audiological screening protocols in stroke rehabilitation.
Claims & Evidence

Patients in the chronic phase of mild ischemic stroke exhibit deficits in free-field sound localization.

studypartially supported

Mild ischemic stroke disrupts neural binaural-cue processing mechanisms underlying sound localization.

studyunclear
Research metadata
PMID
42132836
DOI
10.1177/23312165261446384.
Journal
Trends in Hearing
Publication type
research_article
Evidence level
4
Population
Patients in the chronic phase of mild ischemic stroke
Intervention
Free-field sound localization testing and binaural cue processing assessment

Primary outcomes

Free-field sound localization accuracy; Neural binaural cue processing (interaural time and level differences)

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