Ultrasonic imaging of normal fetal response to external vibratory acoustic stimulation

Kuhlman, Kathleen; Burns, Kayreen A.; Depp, Richard; Sabbagha, Rudy E.

doi:10.1016/0002-9378(88)90773-9

Cited by 88 publications

(57 citation statements)

References 10 publications

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“…Although development (increase or decrease) in each domain continues through term, the 32-week fetus is more similar to a term fetus than to a fetus prior to this transitional period. These findings based on statistical modeling techniques, confirm numerous reports by others, including those for heart rate patterns [Gagnon et al, 1987], fetal breathing [Pillai and James 1990c;Kozuma et al, 1991], total motor activity and specific motor patterns [Roberts et al, 1980;Patrick et al, 1982b;Roodenburg et al, 1991], duration of quiescence and other state indicators [Visser et al, 1987;James et al, 1995;, responsiveness to vibroacoustic stimuli [Kuhlman et al, 1988;Kisilevsky et al, 1992], and habituation [Groome et al, 1993]. This time period corresponds to assumption of higher order control within the developing fetal brain [Yoshizato et al, 1994].…”

Section: Multidimensional Fetal Neurobehavioral Assessment: An Applicsupporting

confidence: 89%

“…Fetal habituation to auditory and/or vibratory stimuli has been documented [Leader et al, 1984;Madison et al, 1986;Kuhlman et al, 1988;Goldkrand and Litvack, 1991;Groome et al, 1993;Sandman et al, 1997;van Heteren et al, 2000]. However, with few exceptions [Hepper and Shahidullah, 1992;Sandman et al, 1997], dishabituation is not assessed, making it difficult to distinguish true habituation from response fatigue.…”

Section: Fetal Responsivitymentioning

confidence: 96%

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Neurobehavioral assessment before birth

DiPietro

2005

Ment. Retard. Dev. Disabil. Res. Rev.

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The complexities of neurobehavioral assessment of the fetus, which can be neither directly viewed nor manipulated, cannot be understated. Impetus to develop methods for measuring fetal neurobehavioral development has been provided by the recognition that individual differences in neurobehavioral functioning do not originate with birth and acceptance of the key contribution of the antenatal period to postnatal life. Research has centered around four aspects of fetal functioning: heart rate, motor activity, behavioral state, and responsivity to stimulation. Longitudinal studies have revealed that the developmental trajectories of these characteristics parallel the developing nervous system, detected a transitional period between 28 and 32 weeks gestation, and established within-fetal stability during the second half of gestation. Despite the promise of fetal stimulation and habituation paradigms as measures of neural functioning, significant safety and ethical concerns exist. Construction of a unified fetal neurobehavioral scale is premature until a sufficient degree of normative data is available and the predictive validity of specific aspects of fetal neurobehavior to child developmental outcomes is better established.

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Section: Multidimensional Fetal Neurobehavioral Assessment: An Applicsupporting

confidence: 89%

Section: Fetal Responsivitymentioning

confidence: 96%

Neurobehavioral assessment before birth

DiPietro

2005

Ment. Retard. Dev. Disabil. Res. Rev.

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“…By analogy, we might expect the remodeling and pruning of terminal arbors would begin to occur in human cochlear nuclei after the onset of hearing between 20 and 22 WG. In the present study, we report that loss of axons with attendant pruning of terminal arbors begin to occur in human fetal CN during 20-22 WG, just before the onset of recordable physiological auditory response (Birnholz and Benacerraf, 1983;Kuhlman et al, 1988). Whether the loss of auditory nerve fibers observed in the present study is due to loss of neurons in the spiral ganglion is yet to be established.…”

Section: Development Of the Cochlear Nervementioning

confidence: 48%

Development of the human fetal cochlear nerve: a morphometric study

et al. 2005

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“…The appearance of myelin coincides with the time of appearance of acousticomotor reflexes in fetuses (Birnholz and Benecerraf 1983;Kuhlman et al 1988). In addition, it is coincident with the time of the first recordable auditory brainstem responses in premature infants (Starr et al 1977;Despland and Galambos 1980;Inagaki et al 1987;Pettigrew et al 1990;Ponton et al 1993).…”

Section: Factors In Axogenesismentioning

confidence: 95%

Axogenesis in the human fetal auditory system, demonstrated by neurofilament immunohistochemistry

Moore

Guan

Shi

1996

Anatomy and Embryology

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Morphological, electrophysiological and behavioral evidence indicates that the onset of rapid, synchronized conduction of auditory impulses occurs in the human brainstem during the 28th-29th fetal weeks. This implies that axonal connections in the brainstem auditory pathway are generated prior to this time. In order to investigate the sequence of axogenic events in the human brainstem pathway, we employed immunohistochemical techniques and an antibody to neurofilament protein. Immunostaining for axonal neurofilaments in an age-graded series of fetal brains demonstrates that a small number of cochlear nerve axons have invaded the ventral cochlear nucleus by the 16th fetal week. By this same time point, a limited number of trapezoid body-lateral lemniscus axons have reached the superior olivary complex and inferior colliculus. Between gestational weeks 16 and 26, there is marked expansion and collateralization of the ascending pathway from cochlear nerve to inferior colliculus. By week 26, ascending axons have begun to form plexuses of terminal neuropil within all of the brainstem auditory nuclei. Beginning in week 22, there is development of commissural axons (dorsal commissure of the lateral lemniscus and commissure of the inferior colliculus) and descending projections (descending collicular axons and olivocochlear bundle). This early establishment of a mature pattern of axonal connections presumably forms the basis for the appearance of myelin, acousticomotor reflexes and recordable brainstem responses by fetal week 29.

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Ultrasonic imaging of normal fetal response to external vibratory acoustic stimulation

Cited by 88 publications

References 10 publications

Neurobehavioral assessment before birth

Neurobehavioral assessment before birth

Development of the human fetal cochlear nerve: a morphometric study

Axogenesis in the human fetal auditory system, demonstrated by neurofilament immunohistochemistry

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