Electrophysiological evidence of developmental changes in the duration of auditory sensory memory.

Gomes, Hilary; Sussman, Elyse; Ritter, Walter; Kurtzberg, Diane; Cowan, Nelson; Vaughan, Herbert G.

doi:10.1037/0012-1649.35.1.294

Cited by 88 publications

(81 citation statements)

References 44 publications

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“…There has been considerable discrepancy regarding the identification of CAEP components in children, which may be in part due to the electrode sites chosen to measure the components. Although EEG is generally recorded from at least 32 electrodes, statistical analyses of the obligatory responses often rely on a single electrode, such as Cz (e.g., Gilley et al, 2005), which is generally the site of greatest signal-to-noise ratio in the adult obligatory responses, or on a small subset of electrodes around Cz (e.g., Gomes et al, 1999;Ponton et al, 2000). GFP aided in the identification of the obligatory components and was used in comparison with the evoked potentials for assessing maturation and rate effects.…”

Section: Data Reduction and Analysismentioning

confidence: 99%

“…For example (1) N1 is observed as a discrete component at ISIs longer than 1 s but with longer peak latency in children compared to adults (e.g., Bruneau et al, 1997;Čeponienc̣ et al, 1998;Gomes et al, 1999). In the current study, the N1 component was not present in the pediatric waveforms as a discrete component; rather, it appeared as a negative deflection within the positive waveform.…”

Section: Effects Of Stimulus Ratementioning

confidence: 99%

“…An effect of ISI on CAEP morphology is evident from the small number of studies that have addressed this issue of physiological development (Čeponienc̣ et al, 1998;Gilley et al, 2005;Gomes et al, 1999;Trehub et al, 1995;Wang et al, 2005;Werner et al, 1992). While the previous studies are invaluable, they suffer the limitations that children were in mixed age groups and there was no systematic reporting of the full complex of obligatory ERP components (P1-N1-P2-N2) elicited at rapid stimulus rates.…”

Section: Introductionmentioning

confidence: 99%

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The maturation of human evoked brain potentials to sounds presented at different stimulus rates

et al. 2008

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The current study assessed the normal development of cortical auditory evoked potentials (CAEPs) in humans presented with pure tone stimuli at relatively fast stimulus rates. Traditionally, maturation of sound processing indexed by CAEPs has been studied in paradigms using inter-stimulus intervals (ISIs) generally slower than 1 Hz. While long ISIs may enhance the amplitude of CAEP components, speech information generally occurs at more rapid rates. These slower rates of sound presentation may not accurately assess auditory cortical functions in more realistic sound environments. We examined the effect of temporal rate on the elicitation of the P1-N1-P2-N2 components to unattended sounds at four levels of stimulus onset asynchrony (SOA, onset to onset, 200, 400, 600, and 800 ms) in children grouped separately by year (ages 8, 9, 10, 11 years), in adolescents (age 16 years) and in one group of young adults (ages 22-40 years). We found that both age and stimulus rate produced profound changes in CAEP morphology. Between the ages of 8-11 years, the P1 and N2 components dominated the ERP waveform at all stimulus rates. N1, the dominant CAEP component in adults, appeared as a bifurcation in a broad positive peak at earlier ages, and did not emerge as a separate component until adolescence. While the P1-N1-P2 components are more "adult-like" than "child-like" in the adolescent subjects, the N2 component, a hallmark of the child obligatory response, was still present. Faster rates resulted in the suppression of discrete components such that by 200 ms, only P1 in the adults and adolescents, and both P1 and N2 in the youngest children were discernable. We conclude that both age and ISI are important variables in the assessment of auditory cortex function and maturation. The presence of N2 in adolescents indicates that auditory cortical maturation persists into teen years.

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Section: Data Reduction and Analysismentioning

confidence: 99%

Section: Effects Of Stimulus Ratementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The maturation of human evoked brain potentials to sounds presented at different stimulus rates

et al. 2008

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“…In children between the ages of 6 and 13 years, MMN to frequency and duration changes has been reported to have similar or slightly longer peak latency (130 -250 ms) compared to adults and to have a similar frontocentral negative topography (e.g., Ahmmed et al, 2008;Ceponiene et al, 1998;Corbera et al, 2006;Gomes et al, 1999;Huttunen et al, 2007;Hämäläinen et al, 2008;Korpilahti et al, 1994;Lachmann et al, 2005;Shafer et al, 2000;Sharma et al, 2006;Uwer & von Suchodoletz, 2000). At this age, MMN often seems to be accompanied by a second, longer latency frontocentral negative deflection starting after around 350 ms (Ceponiene et al, 2004;Hämäläinen et al, 2008;Schulte-Körne et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

Event-related potentials to tones show differences between children with multiple risk factors for dyslexia and control children before the onset of formal reading instruction

Hämäläinen

Lohvansuu

Ervast

et al. 2015

International Journal of Psychophysiology

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Event-related potentials to tones show differences between children with multiple risk factors for dyslexia and control children before the onset of formal reading instruction Hämäläinen, Jarmo; Lohvansuu, Kaisa; Ervast, Leena; Leppänen, Paavo H.T.Hämäläinen, J., Lohvansuu, K., Ervast, L., & Leppänen, P. (2015). Event-related potentials to tones show differences between children with multiple risk factors for dyslexia and control children before the onset of formal reading instruction. AbstractMultiple risk factors can affect the development of specific reading problems or dyslexia. In addition to the most prevalent and studied risk factor, phonological processing, also auditory discrimination problems have been found in children and adults with reading difficulties. The present study examined 37 children between the ages of 5 and 6, 11 of which had multiple risk factors for developing reading problems. The children participated in a passive oddball EEG experiment with sinusoidal sounds with changes in sound frequency, duration, or intensity. The responses to the standard stimuli showed a negative voltage shift in children at risk for reading problems compared to control children at 107-215 ms in frontocentral areas corresponding to P1 offset and N250 onset. Source analyses showed that the difference originated from the left and right auditory cortices. Additionally, the children at risk for reading problems had a larger late discriminative negativity (LDN) response in amplitude for sound frequency change than the control children. The amplitudes at the P1-N250 time window showed correlations to letter knowledge and phonological identification whereas the amplitudes at the LDN time window correlated with verbal short-term memory and rapid naming. These results support the view that problems in basic auditory processing abilities precede the onset of reading instruction and can act as one of the risk factors for dyslexia.

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“…zwischen 1,4 und 8 s (Gomes et al, 1999) und bei Erwachsenen von etwa 10 s (Böttcher-Gandor & Ullsperger, 1992;Sams, et al, 1993) beschrieben.…”

Section: Abb 1: Zeitsparendes Paradigma Zur Ableitung Ereigniskorrelunclassified

Ereigniskorrelierte Potenziale und auditives sensorisches Gedächtnis

Glass

2009

Zeitschrift für Kinder- und Jugendpsychiatrie und Psychotherapi

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Fragestellung: Defizite im auditiven Kurzzeitgedächtnis werden als Ursache u. a. für Sprachentwicklungs- und Lese-Rechtschreibstörungen diskutiert. Für die ersten Lebensjahre fehlen bislang jedoch aussagefähige Untersuchungen zum Kurzzeitgedächtnis. Ziel der vorliegenden Studie war es, bei jüngeren Kindern die Dauer des auditiven sensorischen Gedächtnisses mit objektiven Methoden zu bestimmen. Methodik: In Gruppen unauffällig entwickelter, zwei- (n = 37) bzw. sechsjähriger (n = 52) Kinder wurden mit einem passiven auditiven Oddball-Paradigma und variablem Interstimulusintervall (ISI: 0.5–5 s, je nach Gruppe) ereigniskorrelierte Potenziale (EKP) abgeleitet. Ergebnisse: Bei kurzem ISI waren eine Mismatch Negativity (MMN) und eine Late Discriminative Negativity (LDN) und bei langem ISI eine P3a zu beobachten. Eine ISI-Abhängigkeit war für die MMN und LDN statistisch zu belegen. Die Änderung der EKP-Komponentenstruktur trat bei den sechsjährigen Kindern bei einem deutlich längeren ISI als bei den zweijährigen ein. Schlussfolgerungen: Die Punkte des Verschwindens von MMN und LDN bei ISI–Verlängerung sprechen dafür, dass die Dauer des auditiven sensorischen Gedächtnisses bei zweijährigen Kindern etwa 1–2 s und bei sechsjährigen 3–5 s beträgt. Allerdings scheinen an der Kurzzeitspeicherung akustischer Signale verschiedene Mechanismen mit unterschiedlicher Dauer der Speicherung beteiligt zu sein, da eine P3a auch nach Verschwinden von MMN und LDN noch ableitbar ist.

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Electrophysiological evidence of developmental changes in the duration of auditory sensory memory.

Cited by 88 publications

References 44 publications

The maturation of human evoked brain potentials to sounds presented at different stimulus rates

The maturation of human evoked brain potentials to sounds presented at different stimulus rates

Event-related potentials to tones show differences between children with multiple risk factors for dyslexia and control children before the onset of formal reading instruction

Ereigniskorrelierte Potenziale und auditives sensorisches Gedächtnis

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