Speech perception in a communicative context: an investigation using question/answer pairs.

Area of Science:

• Audiology
• Speech-Language Pathology
• Cognitive Psychology

Background:

• Traditional speech perception tests may not accurately reflect real-world listening challenges for individuals with hearing impairment.
• Communicative context is often diminished in standard assessments, potentially underestimating actual speech perception abilities.

Purpose of the Study:

• To develop and evaluate a speech perception assessment that better simulates real-life communicative environments.
• To investigate the impact of contextual cues and temporal factors on speech perception in adults with severe-to-profound hearing impairment.

Main Methods:

• Thirty-one participants with severe-to-profound hearing impairment completed speech perception tests using hearing aids.
• Tests involved question-answer pairs with varying conditions: no preceding sentence, neutral question, semantically disruptive, and semantically cohesive.
• Time delay between question and answer was manipulated.

Main Results:

• Speech perception improved across all conditions with a preceding question compared to traditional tests.
• Increased cohesion between question and answer significantly enhanced speech perception scores.
• Time delay and semantic relatedness interacted, with context effects diminishing over 10 seconds.

Conclusions:

• Simulating communicative contexts in speech perception tests is valuable for accurately assessing hearing abilities.
• Contextual and linguistic factors play a crucial role in speech perception for hearing-impaired adults.
• Assessment methods should incorporate realistic communicative scenarios to better understand functional hearing.