Communication in conversation in stroke patients

Area of Science:

• Neuroscience
• Speech and Language Pathology
• Rehabilitation Medicine

Background:

• Communication disorders post-stroke are often linked to specific lesion locations (left hemisphere for lexical/syntactic, right for pragmatic issues).
• Limited data exists on patient communication behaviors in dyadic settings, particularly during conversation, during the rehabilitation phase.

Purpose of the Study:

• To analyze communication processes in stroke patients during the rehabilitation phase (1-6 months post-stroke).
• To define the mechanisms of verbal (VC) and non-verbal communication (NVC) disorders.
• To investigate the relationship between these disorders and aphasia.

Main Methods:

• Sixty-three patients with various lesion types (left/right cortico-sub-cortical, sub-cortical, frontal, posterior fossa) were assessed.
• A control group matched for age, gender, and education was used for comparison.
• The Lille Communication Test, Functional Communication Profile, and Boston Diagnostic Aphasia Examination were administered.

Main Results:

• Reduced communication participation was observed in left/right cortico-sub-cortical and frontal lesion patients.
• Verbal communication was significantly impaired in left cortico-sub-cortical and left sub-cortical groups, including verbal pragmatic deficits.
• Non-verbal communication was primarily affected in right cortico-sub-cortical patients, with notable pragmatic difficulties. Left cortico-sub-cortical patients showed increased gesture production as a compensatory mechanism.

Conclusions:

• Communication disorders post-stroke are complex, not solely attributable to lexical/syntactic deficits in left lesions or pragmatic issues in right lesions.
• Left-hemisphere stroke patients often exhibit severe verbal pragmatic difficulties.
• Frontal lobe strokes lead to significant verbal and non-verbal communication impairments.