Higher-Order Language Dysfunctions in Individuals with Alcohol Use Disorder

Area of Science:

• Neuroscience
• Psycholinguistics
• Clinical Psychology

Background:

• Alcohol use disorders (AUD) are associated with cognitive deficits.
• Limited research exists on the broad spectrum of higher-order language functions (HOLF) in AUD patients.

Purpose of the Study:

• To compare various aspects of HOLF between patients with AUD and healthy controls (HC).
• To investigate the impact of depression and executive functions on HOLF in AUD.

Main Methods:

• Utilized the Right Hemisphere Language Battery (RHLB) to assess HOLF.
• Employed the Patient Health Questionnaire (PHQ) for depression and the Color Trails Test (CTT) for processing speed and executive functions.
• Included 31 AUD patients and 44 HC in the study.

Main Results:

• AUD patients scored lower on nine RHLB tests compared to HC.
• AUD patients exhibited higher depression scores (PHQ) and slower processing speeds (CTT).
• Most HOLF deficits in AUD remained significant after controlling for depression and executive functions.

Conclusions:

• Patients with AUD experience significant impairments in making inferences, understanding word meaning, metaphors, and prosody.
• These HOLF deficits can hinder discourse comprehension and production, affecting social and professional functioning.
• AUD-related language difficulties require further investigation and potential therapeutic interventions.