scholarly journals Context and perceptual asymmetry effects on the mismatch negativity (MMNm) to speech sounds: an MEG study

2019 ◽  
Vol 34 (5) ◽  
pp. 545-560 ◽  
Author(s):  
Andreas Højlund ◽  
Line Gebauer ◽  
William B. McGregor ◽  
Mikkel Wallentin
Keyword(s):  
Mismatch Negativity ◽  
Speech Sounds ◽  
Perceptual Asymmetry ◽  
Asymmetry Effects

scholarly journals Context and perceptual asymmetry effects on the mismatch negativity (MMNm) to speech sounds: an MEG study

2018 ◽  
Author(s):  
Andreas Højlund ◽  
Line Gebauer ◽  
William B. McGregor ◽  
Mikkel Wallentin
Keyword(s):  
Mismatch Negativity ◽  
Detection Task ◽  
Speech Sounds ◽  
Asymmetry Effect ◽  
Perceptual Asymmetry ◽  
Phonological Contrast ◽  
Asymmetry Effects ◽  
Phonemic Status ◽  
Phonological Contrasts ◽  
Auditory Erp

The mismatch negativity (MMN) of the auditory ERP/ERF has been shown to be sensitive to both phonetic and phonological contrasts. However, potential asymmetry effects and effects of the immediate phonetic contexts on this neural sensitivity are understudied phenomena.Using magnetoencephalography (MEG), we attempted to address this lacuna by investigating native Danish listeners’ MMNm to the phonological contrast between the consonants /t/ and /d/ in two different phonetic contexts in Danish: one word-initial, preserving the contrast’s phonemic status, and another word- final, neutralizing it.We found no support for effects of the immediate phonetic context on the MMNm. However, we observed an asymmetry effect for the phonological contrast: Hearing [t] among [d]s elicited a significantly stronger MMNm than hearing [d] among [t]s. This asymmetry effect was mirrored in a behavioral oddball-detection task showing reduced sensitivity for hearing [d] among [t]s. We discuss both psychoacoustic aspects and phonological underspecification as potential explanations.

How does reading direction modulate perceptual asymmetry effects?

2017 ◽  
Vol 70 (8) ◽  
pp. 1559-1574 ◽  
Author(s):  
Harry K. S. Chung ◽  
Joyce Y. W. Liu ◽  
Janet H. Hsiao
Keyword(s):  
Perceptual Asymmetry ◽  
Reading Direction ◽  
Asymmetry Effects

scholarly journals Mismatch negativity (MMN) to speech sounds is modulated systematically by manual grip execution

2017 ◽  
Vol 651 ◽  
pp. 237-241 ◽  
Author(s):  
Mikko Tiainen ◽  
Kaisa Tiippana ◽  
Petri Paavilainen ◽  
Martti Vainio ◽  
Lari Vainio
Keyword(s):  
Mismatch Negativity ◽  
Speech Sounds

scholarly journals Behavioral effect of mismatch negativity neurofeedback on foreign language learning

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254771
Author(s):  
Ming Chang ◽  
Hideyuki Ando ◽  
Taro Maeda ◽  
Yasushi Naruse
Keyword(s):  
Foreign Language ◽  
Language Learning ◽  
Mismatch Negativity ◽  
Foreign Language Learning ◽  
Behavioral Effect ◽  
Control Group ◽  
Speech Sounds ◽  
Training Time ◽  
Native Japanese Speakers ◽  
Spoken English

Listening is critical for foreign language learning. Listening difficulties can occur because of an inability to perceive or recognize sounds while listening to speech, whereas successful listening can boost understanding and improve speaking when learning a foreign language. Previous studies in our laboratory revealed that EEG-neurofeedback (NF) using mismatch negativity event-related brain potential successfully induced unconscious learning in terms of auditory discrimination of speech sounds. Here, we conducted a feasibility study with a small participant group (NF group and control group; six participants each) to examine the practical effects of mismatch negativity NF for improving the perception of speech sounds in a foreign language. Native Japanese speakers completed a task in which they learned to perceive and recognize spoken English words containing the consonants “l” or “r”. Participants received neurofeedback training while not explicitly attending to auditory stimuli. The results revealed that NF training significantly improved the proportion of correct in discrimination and recognition trials, even though the training time for each word pair was reduced to 20% of the training time reported in our previous study. The learning effect was not affected by training with three pairs of words with different vowels. The current results indicate that NF resulted in long-term learning that persisted for at least 2 months.

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