A longitudinal study of short latency somatosensory evoked responses in healthy newborns and infants

Laureau, E; Majnemer, Annette; Rosenblatt, Bernard; Riley, Patricia

doi:10.1016/0168-5597(88)90011-1

Cited by 58 publications

(16 citation statements)

References 18 publications

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“…Some previous neonatal SEP studies seemingly disagree with the MEG data by reporting an “adult-like” initial parietal negativity followed by a positivity in the same area with only slightly prolonged latencies (Willis et al, 1984; Laureau et al, 1988; George and Taylor, 1991). This may, however, be an artificial effect of the highpass filter setting applied in these studies (see Pihko and Lauronen, 2004).…”

Section: Normal Development Of the Somatosensory Systemmentioning

confidence: 87%

“…With increasing gestational age, the amplitude of this slow wave gradually decreases and an earlier component, usually referred to as N1 in the literature, becomes detectable with a latency of approximately 90 ms somewhere between the 27th (Taylor et al, 1996) and 29th GW (Hrbek et al, 1973). Toward term-age, the N1 latency rapidly decreases (Hrbek et al, 1973; Klimach and Cooke, 1988a; Karniski et al, 1992; Taylor et al, 1996; Smit et al, 2000), reaching approximately 30 ms at term-age (sep MN 30), though with considerable inter-individual variability (Desmedt and Manil, 1970; Hrbek et al, 1973; Laget et al, 1976; Zhu et al, 1987; Laureau et al, 1988; Laureau and Marlot, 1990; George and Taylor, 1991; Gibson et al, 1992; Karniski, 1992). …”

Section: Normal Development Of the Somatosensory Systemmentioning

confidence: 99%

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Development of Human Somatosensory Cortical Functions â€“ What have We Learned from Magnetoencephalography: A Review

Nevalainen

Lauronen

Pihko

2014

Front. Hum. Neurosci.

107

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The mysteries of early development of cortical processing in humans have started to unravel with the help of new non-invasive brain research tools like multichannel magnetoencephalography (MEG). In this review, we evaluate, within a wider neuroscientific and clinical context, the value of MEG in studying normal and disturbed functional development of the human somatosensory system. The combination of excellent temporal resolution and good localization accuracy provided by MEG has, in the case of somatosensory studies, enabled the differentiation of activation patterns from the newborn’s primary (SI) and secondary somatosensory (SII) areas. Furthermore, MEG has shown that the functioning of both SI and SII in newborns has particular immature features in comparison with adults. In extremely preterm infants, the neonatal MEG response from SII also seems to potentially predict developmental outcome: those lacking SII responses at term show worse motor performance at age 2 years than those with normal SII responses at term. In older children with unilateral early brain lesions, bilateral alterations in somatosensory cortical activation detected in MEG imply that the impact of a localized insult may have an unexpectedly wide effect on cortical somatosensory networks. The achievements over the last decade show that MEG provides a unique approach for studying the development of the somatosensory system and its disturbances in childhood. MEG well complements other neuroimaging methods in studies of cortical processes in the developing brain.

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Section: Normal Development Of the Somatosensory Systemmentioning

confidence: 87%

Section: Normal Development Of the Somatosensory Systemmentioning

confidence: 99%

Development of Human Somatosensory Cortical Functions â€“ What have We Learned from Magnetoencephalography: A Review

Nevalainen

Lauronen

Pihko

2014

Front. Hum. Neurosci.

107

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“…P15 is the first consistent wave form observed in scalp recordings. It is generated between the medulla and the thalamus in the medial lemniscus or in the ventroposterolateral nucleus of the thalamus [16,17]. N20 is a cortical response generated in the posterior wall of the central sulcus, and P22 is also cortical, generated in the crown of the posterior central sulcus [16,18].…”

Section: Methodsmentioning

confidence: 99%

Evoked potentials in children with chronic renal failure, treated conservatively or by continuous ambulatory peritoneal dialysis

et al. 1995

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Children with chronic renal failure (CRF) show developmental, intellectual and motor disturbances. It is questionable if an early start of renal replacement therapy may prevent or delay these disturbances. We studied the neurological and intellectual development of children < 5 years suffering from CRF (creatinine clearance < 20% of normal) prospectively, over a period of 3 years. As part of the neurological study, brainstem auditory evoked potentials (BAEP) and somatosensory evoked potentials (SSEP) were recorded. Measurements were performed in a group of 22 children every 6 months. In 18 of these children CRF was present from birth. Sufficient data were available for analysis in 19 (BAEP) and 22 (SSEP), respectively. A delay of peak I of BAEP gave indications for peripheral conduction disturbances, possibly due to cochlear dysfunction. Brainstem conduction was normal. There were no differences between the children treated conservatively (n = 9) and those treated with continuous ambulatory peritoneal dialysis (CAPD) (n = 10). In children < 2.5 years SSEP showed a delayed thalamocortical conduction, which was not observed in older children. This might indicate a delayed myelination in young children with CRF. No differences were found between the children treated conservatively (n = 10) and those treated with CAPD (n = 12).

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“…Furthermore, controversy exists surrounding the interpretation of the SEP waveform. However, they are weil tolerated by children and the waveforms obtained are easily reproduceable due to minimal artifact present (Fagan et al, 1987, Laureau et al, 1988.…”

Section: Somatosensory Evoked Potentials (Sep)mentioning

confidence: 99%

“…Predictive accuracy was greatest in severe cases and least in children with minimal involvement. However, for this study long latency SEP were analyzed which are not as clinically useful as short latency SEP, due to their greater inter-and intra-subject variability (Cracco et al, 1979), and are more affected by state of consciousness (Laureau et al, 1988). ln summary, many studies have shown SEP to be strongly correlated with sensory deficits (Giblin, 1964;Karnaze et al, 1987;Larson et al, 1966;Libersan, 1966;Maugiere et al 1983;Williamson et al, 1970;Wang et al, 1982;Zeman and Yiannikas, 1989) However several of these studies have inadequate descriptions of the methodology used and statistical analysis are not always ngldly applied.…”

Section: Clinical Sensory Testing Ln Cerebral Paisymentioning

confidence: 99%

The Determination of Sensory Deficits in Children With Hemiplegic Cerebral Palsy

et al. 1995

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Cerebral paisy is a non-progressive disorder associated with brain in jury, detect, or dlsease, of early onset. Emphasis IS placed on the more easily observable motor deficits, with any underlying sensory deficits often being overlooked. Existing sensory assessments have either been standardized on an adult population or for a paediatric population without significant neuromotor impalrment. Thus, there is a need to formulate a standardized sensory assessment battery that may be used to evaluate physically handicapped children. A review of the literature hlghlights the necessity to evaluate the presence and extent of sensory dysfunction in school-age hemipleglc children, us mg a standardlzed clinical sensory assessment battery, as weil as somatosensory evoked potentials.A relJable sensory battery, which asses ses 5 sensory modalltl8s, was formulated and normative data for school-age chlldren was derived. Sensory function was evaluated in 9 hemiplegic children (4-19 years) and 18 healthy age-matched controls. Significant bilateral sensory deficits were documented in hemiplegic childr9n. Thus a sensory assessment should be an integral part of the evaluation of a child with hemiplegia .

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A longitudinal study of short latency somatosensory evoked responses in healthy newborns and infants

Cited by 58 publications

References 18 publications

Development of Human Somatosensory Cortical Functions â€“ What have We Learned from Magnetoencephalography: A Review

Development of Human Somatosensory Cortical Functions â€“ What have We Learned from Magnetoencephalography: A Review

Evoked potentials in children with chronic renal failure, treated conservatively or by continuous ambulatory peritoneal dialysis

The Determination of Sensory Deficits in Children With Hemiplegic Cerebral Palsy

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