scholarly journals Inequality across consonantal contrasts in speech perception: Evidence from mismatch negativity.

2013 ◽  
Vol 39 (3) ◽  
pp. 757-772 ◽  
Author(s):  
Sonia A. Cornell ◽  
Aditi Lahiri ◽  
Carsten Eulitz
Keyword(s):  
Speech Perception ◽  
Mismatch Negativity

scholarly journals Logatome Discrimination in Cochlear Implant Users: Subjective Tests Compared to the Mismatch Negativity

2010 ◽  
Vol 10 ◽  
pp. 329-339 ◽  
Author(s):  
Torsten Rahne ◽  
Michael Ziese ◽  
Dorothea Rostalski ◽  
Roland Mühler
Keyword(s):  
Speech Perception ◽  
Cochlear Implant ◽  
Mismatch Negativity ◽  
Speech Intelligibility ◽  
Event Related Potentials ◽  
Normal Hearing ◽  
Discrimination Test ◽  
Speech Database ◽  
Automated Speech Recognition ◽  
Related Potentials

This paper describes a logatome discrimination test for the assessment of speech perception in cochlear implant users (CI users), based on a multilingual speech database, the Oldenburg Logatome Corpus, which was originally recorded for the comparison of human and automated speech recognition. The logatome discrimination task is based on the presentation of 100 logatome pairs (i.e., nonsense syllables) with balanced representations of alternating “vowel-replacement” and “consonant-replacement” paradigms in order to assess phoneme confusions. Thirteen adult normal hearing listeners and eight adult CI users, including both good and poor performers, were included in the study and completed the test after their speech intelligibility abilities were evaluated with an established sentence test in noise. Furthermore, the discrimination abilities were measured electrophysiologically by recording the mismatch negativity (MMN) as a component of auditory event-related potentials. The results show a clear MMN response only for normal hearing listeners and CI users with good performance, correlating with their logatome discrimination abilities. Higher discrimination scores for vowel-replacement paradigms than for the consonant-replacement paradigms were found. We conclude that the logatome discrimination test is well suited to monitor the speech perception skills of CI users. Due to the large number of available spoken logatome items, the Oldenburg Logatome Corpus appears to provide a useful and powerful basis for further development of speech perception tests for CI users.

scholarly journals Face configuration affects speech perception: Evidence from a McGurk mismatch negativity study

2015 ◽  
Vol 66 ◽  
pp. 48-54 ◽  
Author(s):  
Kasper Eskelund ◽  
Ewen N. MacDonald ◽  
Tobias S. Andersen
Keyword(s):  
Speech Perception ◽  
Mismatch Negativity

scholarly journals Mismatch Negativity in Children with Cochlear Implant

2019 ◽  
Vol 23 (03) ◽  
pp. e292-e298
Author(s):  
Natalia Martinez Fernandes ◽  
Daniela Gil ◽  
Marisa Frasson de Azevedo
Keyword(s):  
Speech Perception ◽  
Language Development ◽  
Cochlear Implant ◽  
Cochlear Implants ◽  
Family Involvement ◽  
Mismatch Negativity ◽  
Control Group ◽  
Study Group ◽  
Cross Sectional ◽  
Hearing Children

Introduction The mismatch negativity (MMN) is a negative long-latency auditory potential elicited by any discriminable change in a repetitive aspect of auditory stimulation. This evoked potential can provide cortical information about the sound processing, including in children who use cochlear implants. Objective To identify MMN characteristics regarding latency, amplitude, and wave area in cochlear implanted children and to identify associations among language development, speech perception and family involvement. Methods This is a descriptive, observational, cross-sectional study, which compared two groups: study group—children with cochlear implant, and control group—hearing children. The children were submitted to MMN evaluation with non-verbal tone burst stimulus, differing in frequency in sound field at 70 dBHL, with SmartEP equipment (Intelligent Hearing Systems, Miami, FL, USA). Speech perception and language development questionnaires were also applied, and the family participation in the rehabilitation process was classified. Results The occurrence of MMN was 73.3% for the control group and 53.3% for the study group. Values of latency, amplitude and area of MMN of children using cochlear implants were similar to those of hearing children, and did not differ between groups. The occurrence of MMN was not correlated to the variables of hearing, language and family categories. Conclusion Children with cochlear implants showed similar MMN responses to those of the children in the control group, with mean latency, amplitude and area of 208.9 ms (±12.8), -2.37 μV (±0.38) and 86.5 μVms (±23.4), respectively. There was no correlation between the presence of MMN and children's performance in the auditory and language development tests or family involvement during rehabilitation.

Mismatch Negativity Brain Response as an Index of Speech Perception Recovery in Cochlear-Implant Recipients

2004 ◽  
Vol 9 (3) ◽  
pp. 160-162 ◽  
Author(s):  
Eila Lonka ◽  
Teija Kujala ◽  
Anne Lehtokoski ◽  
Reijo Johansson ◽  
Satu Rimmanen ◽  
...  
Keyword(s):  
Speech Perception ◽  
Cochlear Implant ◽  
Mismatch Negativity ◽  
Brain Response

Speech perception deficit in dyslexic adults as measured by mismatch negativity (MMN)

2001 ◽  
Vol 40 (1) ◽  
pp. 77-87 ◽  
Author(s):  
Gerd Schulte-Körne ◽  
Wolfgang Deimel ◽  
Jürgen Bartling ◽  
Helmut Remschmidt
Keyword(s):  
Speech Perception ◽  
Mismatch Negativity

Electrophysiological Correlates of Phonological Processing: A Cross-linguistic Study

2000 ◽  
Vol 12 (4) ◽  
pp. 635-647 ◽  
Author(s):  
G. Dehaene-Lambertz ◽  
E. Dupoux ◽  
A. Gout
Keyword(s):  
Speech Perception ◽  
Speech Processing ◽  
Phonological Processing ◽  
Mismatch Negativity ◽  
Native Language ◽  
Event Related Potentials ◽  
Japanese Adults ◽  
Related Potentials ◽  
Considerable Impact ◽  
The Impact

It is well known that speech perception is deeply affected by the phoneme categories of the native language. Recent studies have found that phonotactics, i.e., constraints on the cooccurrence of phonemes within words, also have a considerable impact on speech perception routines. For example, Japanese does not allow (nonasal) coda consonants. When presented with stimuli that violate this constraint, as in / ebzo/, Japanese adults report that they hear a /u/ between consonants, i.e., /ebuzo/. We examine this phenomenon using event-related potentials (ERPs) on French and Japanese participants in order to study how and when the phonotactic properties of the native language affect speech perception routines. Trials using four similar precursor stimuli were presented followed by a test stimulus that was either identical or different depending on the presence or absence of an epenthetic vowel /u/ between two consonants (e.g., “ebuzo ebuzo ebuzo—ebzo”). Behavioral results confirm that Japanese, unlike French participants, are not able to discriminate between identical and deviant trials. In ERPs, three mismatch responses were recorded in French participants. These responses were either absent or significantly weaker for Japanese. In particular, a component similar in latency and topography to the mismatch negativity (MMN) was recorded for French, but not for Japanese participants. Our results suggest that the impact of phonotactics takes place early in speech processing and support models of speech perception, which postulate that the input signal is directly parsed into the native language phonological format. We speculate that such a fast computation of a phonological representation should facilitate lexical access, especially in degraded conditions.

Mismatch negativity reflects the affect of training on speech perception.

2009 ◽  
Vol 125 (4) ◽  
pp. 2658-2658
Author(s):  
McNeel Gordon Jantzen ◽  
Katherine Cella
Keyword(s):  
Speech Perception ◽  
Mismatch Negativity
Sign in / Sign up

Export Citation Format

Share Document