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Masking of speech in people with first-episode schizophrenia and people with chronic schizophrenia

In “cocktail-party” environments, although listeners feel it difficult to recognize attended speech due to both energetic masking and informational masking, they can use various perceptual/cognitive cues, such as content and voice primes, to facilitate their attention to target speech. In patients w... Full description

Journal Title: Schizophrenia Research January 2012, Vol.134(1), pp.33-41
Main Author: Wu, Chao
Other Authors: Cao, Shuyang , Zhou, Fuchun , Wang, Chuanyue , Wu, Xihong , Li, Liang
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0920-9964 ; E-ISSN: 1573-2509 ; DOI: 10.1016/j.schres.2011.09.019
Link: https://www.sciencedirect.com/science/article/pii/S0920996411004981
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recordid: elsevier_sdoi_10_1016_j_schres_2011_09_019
title: Masking of speech in people with first-episode schizophrenia and people with chronic schizophrenia
format: Article
creator:
  • Wu, Chao
  • Cao, Shuyang
  • Zhou, Fuchun
  • Wang, Chuanyue
  • Wu, Xihong
  • Li, Liang
subjects:
  • Schizophrenia
  • Speech Perception
  • Energetic Masking
  • Informational Masking
  • Content Priming
  • Voice Priming
ispartof: Schizophrenia Research, January 2012, Vol.134(1), pp.33-41
description: In “cocktail-party” environments, although listeners feel it difficult to recognize attended speech due to both energetic masking and informational masking, they can use various perceptual/cognitive cues, such as content and voice primes, to facilitate their attention to target speech. In patients with schizophrenia, both speech-perception deficits and increased vulnerability to masking stimuli generally occur. This study investigated whether speech recognition in first-episode patients (FEPs) and chronic patients (CPs) of schizophrenia is more vulnerable to noise masking and/or speech masking than that in demographics-matched-healthy controls, and whether patients with schizophrenia can use primes to unmask speech. In a trial under the priming condition, before the target sentence containing three keywords was co-presented with a noise or speech masker, the prime (early part of the sentence including the first two keywords) was recited in quiet with the target-speaker's voice. The results show that in patients, target-speech recognition was more impaired under speech-masking conditions than noise-masking conditions, and the impairment in CPs (n = 22) was larger than that in FEPs (n = 12). Although working memory for holding prime-content information in patients, especially CPs, was more vulnerable to masking, especially speech masking, than that in healthy controls, patients were still able to use the prime to unmask the last keyword. Thus, in “cocktail-party” environments, speech recognition in people with schizophrenia is more vulnerable to masking, particularly informational masking, and the speech-recognition impairment augments as the illness progresses. However, people with schizophrenia can use the content/voice prime to reduce energetic masking and informational masking of target speech.
language: eng
source:
identifier: ISSN: 0920-9964 ; E-ISSN: 1573-2509 ; DOI: 10.1016/j.schres.2011.09.019
fulltext: fulltext
issn:
  • 0920-9964
  • 09209964
  • 1573-2509
  • 15732509
url: Link


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descriptionIn “cocktail-party” environments, although listeners feel it difficult to recognize attended speech due to both energetic masking and informational masking, they can use various perceptual/cognitive cues, such as content and voice primes, to facilitate their attention to target speech. In patients with schizophrenia, both speech-perception deficits and increased vulnerability to masking stimuli generally occur. This study investigated whether speech recognition in first-episode patients (FEPs) and chronic patients (CPs) of schizophrenia is more vulnerable to noise masking and/or speech masking than that in demographics-matched-healthy controls, and whether patients with schizophrenia can use primes to unmask speech. In a trial under the priming condition, before the target sentence containing three keywords was co-presented with a noise or speech masker, the prime (early part of the sentence including the first two keywords) was recited in quiet with the target-speaker's voice. The results show that in patients, target-speech recognition was more impaired under speech-masking conditions than noise-masking conditions, and the impairment in CPs (n = 22) was larger than that in FEPs (n = 12). Although working memory for holding prime-content information in patients, especially CPs, was more vulnerable to masking, especially speech masking, than that in healthy controls, patients were still able to use the prime to unmask the last keyword. Thus, in “cocktail-party” environments, speech recognition in people with schizophrenia is more vulnerable to masking, particularly informational masking, and the speech-recognition impairment augments as the illness progresses. However, people with schizophrenia can use the content/voice prime to reduce energetic masking and informational masking of target speech.
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