Pure linguistic interference during comprehension of competing speech signals
Dai, B., McQueen, J. M., Hagoort, P., & Kösem, A.
Pure linguistic interference during comprehension of competing speech signals. The Journal of the Acoustical Society of America, 141
, EL249-EL254. doi:10.1121/1.4977590.
Speech-in-speech perception can be challenging because the processing of competing acoustic and linguistic information leads to informational masking. Here, a method is proposed to isolate the linguistic component of informational masking while keeping the distractor's acoustic information unchanged. Participants performed a dichotic listening cocktail-party task before and after training on 4-band noise-vocoded sentences that became intelligible through the training. Distracting noise-vocoded speech interfered more with target speech comprehension after training (i.e., when intelligible) than before training (i.e., when unintelligible) at −3 dB SNR. These findings confirm that linguistic and acoustic information have distinct masking effects during speech-in‐speech comprehension