Intermanual Transfer of Shapes in Preterm Human Infants From 33 to 34 + 6 Weeks Postconceptional Age

Lejeune, Fleur; Marcus, L.; Berne-Audéoud, Frédérique; Stréri, Arlette; Debillon, Thierry; Gentaz, Édouard

doi:10.1111/j.1467-8624.2012.01753.x

Cited by 13 publications

(17 citation statements)

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“…Indeed, preterm infants who succeeded to habituate to the object in the Noise condition, needed more time and trials to attain the habituation criterion than those in the Silence condition. Consistent with previous studies, preterm infants displayed a strong and effective tactile habituation process in the Silence condition 17 18 23 . However, this ability to memorize tactile information seems to be weakened by the concomitant exposure to the alarm sound of the feeding system.…”

Section: Discussionsupporting

confidence: 91%

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Sound Interferes with the Early Tactile Manual Abilities of Preterm Infants

Lejeune

Parra

Berne-Audéoud

et al. 2016

Sci Rep

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Premature birth is a sudden change of the sensory environment of a newborn, while their senses are still in development, especially in the stressful and noisy environment of the NICU. The study aimed to evaluate the effect of noise on the early tactile manual abilities of preterm infants (between 29 and 35 weeks PCA). Infants were randomly assigned to one of the two conditions: Silence and Noise. For each condition, two phases were introduced: a habituation phase (repeated presentation of the same object, prism or cylinder), followed by a test phase (presentation of the familiar or a novel object). In the Silence condition, they received the tactile habituation and test phases: In the Noise condition, they went through the same phases, while an alarm sounded. Sixty-three preterm infants were included. They displayed a strong and effective ability to memorize tactile manual information and to detect the difference between two shape features, but this ability seems to be impaired by the concomitant exposure to an alarm sound. This study is the first to highlight the effect of a negative stimulus on sensory functioning in premature infants. It reinforces the importance of developing environmental measures to lower the sound level in NICUs.

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Section: Discussionsupporting

confidence: 91%

“…These abilities have been observed from the post-conceptional age of 28 weeks 17 . Preterm infants were also able to learn an object shape with one hand and discriminate a new-shaped object in the opposite hand 18 . Thus, tactile manual abilities seem to be an effective and strong learning process in preterm newborns.…”

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confidence: 99%

Sound Interferes with the Early Tactile Manual Abilities of Preterm Infants

Lejeune

Parra

Berne-Audéoud

et al. 2016

Sci Rep

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“…Pre-term and full-term infants can also perceive, through touch, objects' characteristics like shape, texture and weight, thus demonstrating well-developed active touch abilities (e.g. [20], [21], [22], [23], [24], [25]). The question of the sensitivity to passive touch (i. e. sensitivity to a stimulation imposed on the individual's skin) is of particular importance for infants born prematurely (before 37 weeks of gestation) who need intensive medical care and develop in sensory environments (Neonatal Intensive Care Units) dramatically different from those in which full-term infants mature and which consist in numerous sensory (including tactile and sometimes noxious, e.g.…”

Section: Introductionmentioning

confidence: 99%

Higher tactile sensitivity in preterm infants at term-equivalent age: A pilot study

André¹,

Durier²,

Beuchée

et al. 2020

PLoS ONE

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Despite a growing body of research on perinatal sensory abilities, data on the extent of tactile sensitivity and more particularly passive touch (i.e. sensitivity to a stimulation imposed on the skin) are relatively limited, and the development and processing of tactile function are still thus little known. This question is particularly of high importance for infants with atypical early development such as those born prematurely who are exposed to many sensory (including tactile) stimulations (being in a hospital setting) during a critical period of brain development and those born at early term whose birth occurs at the precise time of cortical reorganization, in particular in the sensory areas. Some parents and health-care providers have for instance reported that children born prematurely exhibit atypical (e.g. higher) sensitivity to "benign" tactile stimuli. In the present study, we hypothesized that preterm and earlyterm infants may show altered tactile sensitivity. We compared the behavioral responses around term-equivalent age of infants born either pre-term, early-term or at term to the application of a light (0.008 grams) mechanical stimulus. We found that almost all preterm infants perceive this tactile stimulus, contrarily to the two other groups of infants. This extreme tactile sensitivity may be due to experiential, maturational or more likely both processes. We also compared the tactile sensitivity of these infants to that of adults. We found that adults were irresponsive to the light mechanical stimulus. This finding opens not only new insights in understanding development of tactile processing, but also new lines of thought about the particular sensory world of premature and early-term infants and hence about the potential impact of early care practices.

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“…Our last study revealed that, in spite of the immaturity of the corpus callosum in preterm infants, its development seems to be sufficient to allow some transfer of information between both hands from 33 GW. 23 The purpose of these experiments on sensoriality was to obtain a better understanding of the sensory abilities of preterm infants, to provide them with better care, and to improve their development. …”

Section: Figurementioning

confidence: 99%

Tactile Sensory Capacity of the Preterm Infant: Manual Perception of Shape From 28 Gestational Weeks

et al. 2012

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Development/Behavioral Issues the following collection(s):This article, along with others on similar topics, appears in WHAT THIS STUDY ADDS: The preterm infant, even when very immature (from 28 gestational weeks), is endowed with tactile sensory abilities: the exploration and memorization of an object by touch, the discrimination of a novel object, and the recognition of a familiar object after interference. abstract OBJECTIVE: Recent studies have shown that from the postconceptional age of 33 weeks, preterm infants are able to memorize tactile information about the shape of an object by using their hands, and can detect differences with another shape. This study aimed to investigate tactile abilities earlier on in development, in very preterm and mildly preterm human infants. Permissions & Licensing

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Intermanual Transfer of Shapes in Preterm Human Infants From 33 to 34 + 6 Weeks Postconceptional Age

Cited by 13 publications

References 20 publications

Sound Interferes with the Early Tactile Manual Abilities of Preterm Infants

Sound Interferes with the Early Tactile Manual Abilities of Preterm Infants

Higher tactile sensitivity in preterm infants at term-equivalent age: A pilot study

Tactile Sensory Capacity of the Preterm Infant: Manual Perception of Shape From 28 Gestational Weeks

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