Training in rapid auditory processing ameliorates auditory comprehension in aphasic patients: a randomized controlled...

Area of Science:

• Neuroscience
• Speech and Language Therapy
• Cognitive Psychology

Background:

• Rapid auditory processing is closely linked to language competency.
• Aphasic patients often exhibit deficits in auditory comprehension and temporal order (TO) perception.
• Targeted training may improve these impaired functions.

Purpose of the Study:

• To investigate the efficacy of specific temporal training (TT) in improving auditory comprehension in aphasic patients.
• To assess the impact of TT on temporal order (TO) perception abilities.
• To determine if improvements in TO perception transfer to untrained language skills.

Main Methods:

• 18 aphasic patients with comprehension and TO deficits participated.
• Two groups: temporal training (TT, n=11) focusing on sequencing, and control non-temporal training (NT, n=7) on volume discrimination.
• Eight 45-minute sessions were conducted.
• Auditory comprehension assessed via Token Test, phonemic awareness, and Voice-Onset-Time Test.
• TO perception measured by auditory Temporal-Order-Threshold.

Main Results:

• Temporal training (TT) significantly improved TO perception abilities.
• A notable transfer of improvement was observed from the temporal domain to untrained language skills.
• The control non-temporal training (NT) group showed no improvements in TO perception or language tests.

Conclusions:

• Specific temporal training is effective in enhancing both temporal order perception and auditory comprehension in aphasic patients.
• These findings suggest that improving temporal sequencing abilities can lead to broader language recovery in aphasia.
• This study provides the first evidence of such benefits in aphasic populations, extending previous findings from children with language impairments.