Semantic sentence processing reflected in the event-related potentials of one- and two-year-old children

Friedrich, Manuela; Friederici, Angela D.

doi:10.1097/01.wnr.0000185013.98821.62

Cited by 59 publications

(54 citation statements)

References 17 publications

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“…The latency of the infants' response, however, is delayed as compared with prior findings in adults. The delayed onset of ERP components is not unexpected, given that delayed onsets of ERP components in early infancy have also been observed for the processing of semantic [19] and syntactic information [20]. The present finding supports the view that prosodic processes crucial for speech segmentation are established very early in development.…”

Section: Discussionsupporting

confidence: 77%

Prosodic processing at the sentence level in infants

2006

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We investigate whether 8 -month-old infants can detect prosodic cues relevant in sentence structuring. We recorded event-related potentials to examine online responses to the processing of prosodic boundaries. Prior studies in adults have validated the closure positive shift as re£ecting prosodic boundary perception during speech processing. The current study shows that in the event-related potentials of 8 -month-olds, a closure positive shift is elicited in relation to the prosodic boundaries in speech, suggesting that these infants are able to structure speech input into prosodic units on a neurophysiological basis similar to that seen in adults. A delay in latency of the infant closure positive shift, however, suggests that children's exploitation of prosodic boundaries for the segmentation of the speech stream is still developing. NeuroReport 17:675^678

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Section: Discussionsupporting

confidence: 77%

Prosodic processing at the sentence level in infants

2006

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“…The former changes are suggested in particular by longer latencies of waveform components in children's ERPs. Such shifts have been reported on both early ERP components associated with auditory or visual perception (e.g., at P50 and P100 peaks for auditory and visual stimuli respectively, Holcomb et al, 1992) and on later components associated with language processing (prolonged N400 in a semantic task in Friedrich and Friederici, 2005; shifted component at 300-550 ms in the verb conjugation task in Budd et al, 2013). Given that these results focused on specific ERP components in various experimental paradigms and ages, it is not possible to conclude whether only specific word planning processes speed up from childhood to adulthood or if the increases in processing speed are distributed across all processing stages.…”

Section: Introductionmentioning

confidence: 99%

Functional and time-course changes in single word production from childhood to adulthood

et al. 2015

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Picture naming tasks are widely used both in children and adults to investigate language production for research and for assessment purposes. The main theoretical models of single word production based on the investigation of picture naming in adults provide a detailed account of the principal mental operations involved in the transformation of an abstract concept into articulated speech and their temporal dynamics. These models and in particular their time-course do not apply directly to children who display much longer production latencies than adults. Here we investigate the functional processes and the temporal dynamics of word encoding in school-age children and adults. ERPs were analysed from picture onset to the onset of articulation in 32 children and 32 adults performing the same overt picture naming task. Waveform analyses were not informative since differences appeared throughout the entire period, due to an early shift of waveform morphology and to larger amplitudes in children. However, when the sequences of periods of topographic stability were considered, different patterns of electric fields at scalp only appeared in approximately the first third of the analysed period, corresponding to the P1-N1 complex. From about 200 ms in adults and from 300 ms in children to articulation onset similar patterns of global topography were observed across groups but with a different time distribution. These results indicate qualitative changes in an early time-window, likely corresponding to pre-linguistic processes, and only quantitative changes in later time-windows, suggesting similar mental operations underlying lexical processes between age-school children and adults, with temporal dynamic changes during development.

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“…In a typical developmental thread, it was observed that 12-month-old children who have a high vocabulary production showed the N400 effect with a delay in the latency and decreased duration of the wave when compared to the one observed in older children and adults 5 ; at 19 and 24 months old incoherent stimuli caused a bigger range that started at the same time it does in adults, however, with extended effect in both age groups 22,23,25 ; at 20 months old, children with low and high vocabulary production differed in the mapping performance of new words but not for real words 28 ; at 30 months old 24 and from 3 to 6 years old 2,16 , children showed a negative effect for semantically anomalous words, similar to the patterns reported in older children and adults.…”

Section: The N400 Effect On Preschool Children Showing a Typical Devementioning

confidence: 99%

“…In this sense, in order to investigate the semantic processing in children aged 19 and 24 months old, they used a paradigm of hearing sentences with coherent and incoherent endings at random 23 . At 24 months old, there was an increased negativity (i.e., broader range) for incoherent stimuli and with centerparietal distribution; and at 19 months old, there was a similar response however with a broader distribution through the scalp.…”

Section: Literature Reviewmentioning

confidence: 99%

Semantic processing in children 0 to 6 years of age: an N400 analysis

Lindau

Giacheti²,

Silva³

et al. 2017

Rev. CEFAC

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This study consists of a literature review about the semantic processing in children 0 to 6 years of age and an N400 data analysis. Twenty-four studies that met the eligibility criteria were found. Most studies aimed to investigate and characterize the electrophysiological patterns of younger children as compared to those found in older children and adults. A large variability of employed experimental tasks was found, showing that there are various investigation alternatives in this perspective. In general, the joint analysis of the results pointed out that despite the different objectives, types of experimental tasks and degrees of language skills (i.e., typical development or different conditions), age was a relevant factor in establishing the presence or not of the N400 effect and its lateralization. When present, the N400 effect showed that the latency and amplitude of the wave decline according to age. However, the variability of procedures can affect the degree of control and the data reliability. For further studies, the development of a standard protocol to investigate the semantic processing by means of the N400 effect data in different populations is an important step and a strong recommendation for the area.

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Semantic sentence processing reflected in the event-related potentials of one- and two-year-old children

Cited by 59 publications

References 17 publications

Prosodic processing at the sentence level in infants

Prosodic processing at the sentence level in infants

Functional and time-course changes in single word production from childhood to adulthood

Semantic processing in children 0 to 6 years of age: an N400 analysis

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