Changes in auditory cortex and the development of mismatch negativity between 2 and 6 months of age

Trainor, Laurel J.; McFadden, Melissa; Hodgson, Lisa; Darragh, Lisa; Barlow, Jennifer; Matsos, Laura; Sonnadara, Ranil

doi:10.1016/s0167-8760(03)00148-x

Cited by 117 publications

(111 citation statements)

References 51 publications

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“…Another possible interpretation of the MMR comes from Pihko et al (1999) who see this variability of positive-negative differences in 6 month-olds as a sign of maturational changes during development. A further explanation is used by Trainor et al (2003) who emphasize the impact of background neural processes in different cortical layers on the surface recorded responses. The different background is denoted by different wave morphology of the positive and negative responses.…”

Section: Discussionmentioning

confidence: 99%

Effect of maturation on suprasegmental speech processing in full- and preterm infants: A mismatch negativity study

Ragó

Honbolygó

Róna

et al. 2014

Research in Developmental Disabilities

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Infants born prematurely are at higher risk for later linguistic deficits present in delayed or atypical processing of phonetic and prosodic information. In order to be able to specify the nature of this atypical development, it is important to investigate the role of early experience in language perception. According to the concept of Gonzalez-Gomez and Nazzi (2012) there is a special intrauterine sensitivity to the prosodic features of languages that should have a special role in language acquisition. Therefore, we may also assume that pre-and full-term infants having months difference in intrauterine experience show different maturation patterns of processing prosodic and phonetic information present at word level. The aim of our study was to investigate the effect of these differences on word stress pattern vs. phoneme information processing. Two age groups of infants (6 and 10 month-olds) were included in our study. 21 of 46 of the total of infants investigated were prematurely born with low birth weight. We used the mismatch negativity (MMN) event related brain potential (ERP) component, a widely used electrophysiological correlate of acoustic change detection, for testing the assumed developmental changes of phoneme and word stress discrimination. In a passive oddball paradigm we used a word as standard, a pseudoword as phoneme deviant, and an illegally uttered word as stress deviant. Our results showed no differences in MMN responses in the phoneme deviant condition between the groups, meaning a relatively intact maturation of phoneme processing of preterm infants as compared to their contemporaries. However, the mismatch responses measured in the stress condition revealed significant betweengroup differences. These results strengthen the view that the total length of intrauterine experience influences the time of emergence of prosodic processing.

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Section: Discussionmentioning

confidence: 99%

Effect of maturation on suprasegmental speech processing in full- and preterm infants: A mismatch negativity study

Ragó

Honbolygó

Róna

et al. 2014

Research in Developmental Disabilities

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“…For example Wetzel et al [48] found a positive mismatch response in kindergarteners during a complex discrimination task. However, studies show that a positive mismatch response can mainly be associated to developmental deficits, such as language deficits and the risk for dyslexia in children [49,50]. Further investigations could show similar sources for the positive mismatch response in normally developing kindergarteners and the MMN in adults [51].…”

Section: Citationmentioning

confidence: 94%

Gaining Mismatch Negativity! Improving Auditory Phoneme Discrimination by Literacy Training ? A Pre-Post Event-Related Potential Study

Schaadt

Pannekamp

Meer

2014

Int J Sch Cog Psychol

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Two of the most important cultural abilities are reading and writing. One can imagine how essential they are for addressing the challenges in everyday life. It is surprising that even in Germany, a highly developed country, there are still about 7.5 million individuals who cannot read or write sufficiently [1]. This large number of individuals without sufficient literal abilities highlights the importance of investigations concerning literacy acquisition in illiterate adults. Further, this special sample can give us more information about the importance of literacy acquisition in generaland its impact on the human brain, and its functions. Auditory phoneme discrimination is one of the most important cognitive abilities for literacy acquisition [2]. It has been shown that successful literacy acquisition is closely related to auditory phoneme discrimination. demonstrated that children with dyslexia show diminished Mismatch Negativity (MMN) in response to phonemes compared to normally developing children. The MMN is the characteristic event-related potential (ERP) marker for auditory phoneme discrimination. We investigated the MMN in illiterates before they took part in a literacy course [4] and did not find a discernible MMN in our illiterate sample. These results support the assumption that literacy acquisition has a great impact on the brain. In addition, they lead to the question whether the MMN in response to phonemes, which is already established in infants [5] and develops further during literacy acquisition, "is lost" in illiterate individuals and whether literacy training might help to enhance auditory phoneme discrimination again. Results would help to improve literacy acquisition in adults and further help to gain insights into the interplay between literacy acquisition and auditory phoneme discrimination. The study at hand aimed to investigate possible changes in auditory phoneme discrimination in illiterates by comparing the MMN before after a one-year literacy course.A person is illiterate if his or her literal abilities are insufficient compared to those abilities that are normally required in the social context a person lives in. Illiteracy is present if adult individuals are not able to read and write sufficiently due to inadequate schooling [4]. Another well-known deficit regarding reading and writing is dyslexia. Familial frequency highlights genetic causes of dyslexia [DSM IV-R] [6]. When contrasting illiteracy and dyslexia, it becomes apparent that illiteracy is mainly caused by a lack of education whereas dyslexia is not. Many studies have investigated phonological awareness in children with and without dyslexia. Phonological awareness refers to "…one´s awareness of and access to the phonology of one´s language…" [7] and is the ability to manipulate and discriminate sounds in syllables and words. It encompasses awareness of the most basic speech units of a language. These basic units include phonemes as well as larger units such as rhymes and syllables. Phonological awareness is highly predic...

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“…Dehaene-Lambertz and Pena (2001), Dehaene-Lambertz (2000), and Dehaene-Lambertz and Dehaene (1994) found a positivity for syllable changes in newborns, 3-month-olds, and 4-month-olds. Trainor et al (2001Trainor et al ( , 2003 reported a positive response in 2-month-old infants but a negative response in 6-monthold infants to fine temporal changes. However, for occasional changes in sound location, a negative response is not seen until 8 months of age (Sonnadara, Hotson, & Trainor, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…MMN is of particular interest in developmental studies because it does not require a behavioral response and, although affected by attention, attention is not required for its elicitation (e.g., Sussman, Ritter, & Vaughan, 1998;Oades & Dittmann-Balcar, 1995;Näätänen, Paavilainen, Tiitinen, Jiang, & Alho, 1993). However, different studies reported different developmental trajectories for MMN in infants (e.g., Trainor et al, 2003;Trainor, Samuel, Desjardins, & Sonnadara, 2001;Leppänen, Eklund, & Lyytinen, 1997;Cheour-Luhtanen, Alho, & Sainio, 1996;Dehaene-Lambertz & Dehaene, 1994;Alho, Sainio, Sajaniemi, Reinikainen, & Näätänen, 1990). In the present study, we used high-resolution electroencephalogram (EEG) recordings to examine the development of mismatch responses to pitch changes in infants between 2 and 4 months of age.…”

Section: Introductionmentioning

confidence: 99%

“…An alternative possibility is that the negative and positive responses to change might reflect different neural processes, perhaps taking place in different cortical layers (Trainor et al, 2003). Morr et al (2002) reported the presence of a negative response to pitch changes in infants under 12 months of age to large, but not to small, pitch changes, suggesting that different processes may be used for easy and hard discriminations.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mismatch Responses to Pitch Changes in Early Infancy

He¹,

Hotson²,

Trainor³

2007

Journal of Cognitive Neuroscience

139

165

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Abstract& We investigated the emergence of discriminative responses to pitch by recording 2-, 3-, and 4-month-old infants' electroencephalogram responses to infrequent pitch changes in piano tones. In all age groups, infants' responses to deviant tones were significantly different from responses to standard tones. However, two types of mismatch responses were observed simultaneously in the difference waves. An increase in the leftlateralized positive slow wave was prominent in 2-month-olds, present in 3-month-olds, but insignificant in 4-month-olds. A faster adultlike mismatch negativity (MMN), lateralized to the right hemisphere, emerged at 2 months of age and became earlier and stronger as age increased. The coexistence and dissociation of two types of mismatch responses suggests different underlying neuromechanisms for the two responses. Furthermore, the earlier emergence of the MMN-like component to changes in pitch compared to other sound features implies that neural circuits involved in generating MMN-like responses have different maturational timetables for different sound features. &

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Changes in auditory cortex and the development of mismatch negativity between 2 and 6 months of age

Cited by 117 publications

References 51 publications

Effect of maturation on suprasegmental speech processing in full- and preterm infants: A mismatch negativity study

Effect of maturation on suprasegmental speech processing in full- and preterm infants: A mismatch negativity study

Gaining Mismatch Negativity! Improving Auditory Phoneme Discrimination by Literacy Training ? A Pre-Post Event-Related Potential Study

Mismatch Responses to Pitch Changes in Early Infancy

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