Gated auditory speech perception: effects of listening conditions and cognitive capacity

Moradi, Shahram; Lidestam, Björn; Saremi, Amin; Rönnberg, Jerker

doi:10.3389/fpsyg.2014.00531

Cited by 32 publications

(45 citation statements)

References 84 publications

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“…All of these factors have been linked to changes in attentional control (e.g., Hartman & Hasher, 1991) and recruitment of prefrontal cortex (Bishop, 2009). These findings align with the emerging evidence that speech processing ability in challenging environments is associated with working memory capacity (Moradi, Lidestam, Saremi, & Rönnberg, 2014;Rönnberg, Rudner, Lunner, & Zekveld, 2010;Zekveld, et al, 2013). Working memory capacity, which predicts performance of not only language processing tasks but also a wide variety of higherorder cognitive assessments, has been argued to index executive attention that regulates the information content activated in the memory (for a review, see Engle, 2002).…”

Section: Ganong Effect and Speech-in-speech Processing Is Associated supporting

confidence: 79%

The Downside of Greater Lexical Influences: Selectively Poorer Speech Perception in Noise

Lam

Xie

Tessmer

et al. 2017

J Speech Lang Hear Res

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,d,e Purpose: Although lexical information influences phoneme perception, the extent to which reliance on lexical information enhances speech processing in challenging listening environments is unclear. We examined the extent to which individual differences in lexical influences on phonemic processing impact speech processing in maskers containing varying degrees of linguistic information (2-talker babble or pink noise). Method: Twenty-nine monolingual English speakers were instructed to ignore the lexical status of spoken syllables (e.g., gift vs. kift) and to only categorize the initial phonemes (/g/ vs. /k/ ). The same participants then performed speech recognition tasks in the presence of 2-talker babble or pink noise in audio-only and audiovisual conditions.Results: Individuals who demonstrated greater lexical influences on phonemic processing experienced greater speech processing difficulties in 2-talker babble than in pink noise. These selective difficulties were present across audio-only and audiovisual conditions. Conclusion: Individuals with greater reliance on lexical processes during speech perception exhibit impaired speech recognition in listening conditions in which competing talkers introduce audible linguistic interferences. Future studies should examine the locus of lexical influences/ interferences on phonemic processing and speechin-speech processing.

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Section: Ganong Effect and Speech-in-speech Processing Is Associated supporting

confidence: 79%

The Downside of Greater Lexical Influences: Selectively Poorer Speech Perception in Noise

Lam

Xie

Tessmer

et al. 2017

J Speech Lang Hear Res

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“…These words were selected from the 46 Swedish monosyllabic words (e.g., bad, dus, gap, jul, ram, sot, and väck) used by Moradi, Lidestam, and Rönnberg (2013) and Moradi et al. (2014).…”

Section: Methodsmentioning

confidence: 99%

“…(2013, 2014). Each sentence was either an LP or HP sentence, according to how predictable the last word in each sentence was.…”

Section: Methodsmentioning

confidence: 99%

Gated Auditory Speech Perception in Elderly Hearing Aid Users and Elderly Normal-Hearing Individuals: Effects of Hearing Impairment and Cognitive Capacity

et al. 2014

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This study compared elderly hearing aid (EHA) users and elderly normal-hearing (ENH) individuals on identification of auditory speech stimuli (consonants, words, and final word in sentences) that were different when considering their linguistic properties. We measured the accuracy with which the target speech stimuli were identified, as well as the isolation points (IPs: the shortest duration, from onset, required to correctly identify the speech target). The relationships between working memory capacity, the IPs, and speech accuracy were also measured. Twenty-four EHA users (with mild to moderate hearing impairment) and 24 ENH individuals participated in the present study. Despite the use of their regular hearing aids, the EHA users had delayed IPs and were less accurate in identifying consonants and words compared with the ENH individuals. The EHA users also had delayed IPs for final word identification in sentences with lower predictability; however, no significant between-group difference in accuracy was observed. Finally, there were no significant between-group differences in terms of IPs or accuracy for final word identification in highly predictable sentences. Our results also showed that, among EHA users, greater working memory capacity was associated with earlier IPs and improved accuracy in consonant and word identification. Together, our findings demonstrate that the gated speech perception ability of EHA users was not at the level of ENH individuals, in terms of IPs and accuracy. In addition, gated speech perception was more cognitively demanding for EHA users than for ENH individuals in the absence of semantic context.

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“…It is difficult to know if and to what extent variations along these dimensions affect the relationship to cognition, and whether these variations may explain, at least in part, inconsistencies between studies. For instance, could differences in target speech help explain why some studies (Desjardins and Doherty 2013;Moradi et al 2014), using a complex sentence perception test, found a significant correlation between reading span and intelligibility, while another study (Kempe et al 2012), using syllables and the same cognitive test, did not? The goal of this study is to systematically vary the complexity of the listening situation and to investigate how this variation affects the relationship between intelligibility and assorted cognitive measures.…”

Section: Introductionmentioning

confidence: 99%

The Contribution of Auditory and Cognitive Factors to Intelligibility of Words and Sentences in Noise

Heinrich

Knight

2016

Advances in Experimental Medicine and Biology

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Understanding the causes for speech-in-noise (SiN) perception difficulties is complex, and is made even more difficult by the fact that listening situations can vary widely in target and background sounds. While there is general agreement that both auditory and cognitive factors are important, their exact relationship to SiN perception across various listening situations remains unclear. This study manipulated the characteristics of the listening situation in two ways: first, target stimuli were either isolated words, or words heard in the context of low-(LP) and high-predictability (HP) sentences; second, the background sound, speech-modulated noise, was presented at two signal-to-noise ratios. Speech intelligibility was measured for 30 older listeners (aged 62-84) with age-normal hearing and related to individual differences in cognition (working memory, inhibition and linguistic skills) and hearing (PTA 0.25-8 kHz and temporal processing). The results showed that while the effect of hearing thresholds on intelligibility was rather uniform, the influence of cognitive abilities was more specific to a certain listening situation. By revealing a complex picture of relationships between intelligibility and cognition, these results may help us understand some of the inconsistencies in the literature as regards cognitive contributions to speech perception.

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Gated auditory speech perception: effects of listening conditions and cognitive capacity

Cited by 32 publications

References 84 publications

The Downside of Greater Lexical Influences: Selectively Poorer Speech Perception in Noise

The Downside of Greater Lexical Influences: Selectively Poorer Speech Perception in Noise

Gated Auditory Speech Perception in Elderly Hearing Aid Users and Elderly Normal-Hearing Individuals: Effects of Hearing Impairment and Cognitive Capacity

The Contribution of Auditory and Cognitive Factors to Intelligibility of Words and Sentences in Noise

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