Fetal cardiac and motor responses to octave-band noises as a function of central frequency, intensity and heart rate variability

Jp, Lecanuet; Granier-Deferre, Carolyn; Mc, Busnel

doi:10.1016/0378-3782(88)90045-x

Cited by 73 publications

(33 citation statements)

References 30 publications

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“…Despite the fact that studies from our group (Lecanuet et al, 1986(Lecanuet et al, , 1988, Schmidt et al (1985), and Timor-Tristch (1986) strongly suggested that fetuses in a high HR variability state (HHRV) are more reactive to external stimulation (i.e., airborne sounds) compared to fetuses in the LHRV state, we chose LHRV to compare data from the present study with the ones obtained with auditory stimulation in the same state.…”

Section: Stimulationmentioning

confidence: 88%

Fetal responsiveness to maternal passive swinging in low heart rate variability state: Effects of stimulation direction and duration

Lecanuet

Jacquet

2001

Developmental Psychobiology

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Pregnant women, carrying end of gestation fetuses (38-41 weeks gestational age) were either gently rocked in an anterior posterior plane in a rocking chair or gently swayed laterally in a garden glider. Stimulation lasted for either 5 or 26 s (R5 & R26, SW5 & SW26). Fetal heart rate (HR) (bpm) and ultrasonically detected fetal movements were recorded 26 s before and during stimulation. Heart rate data were processed two ways: (a) ANOVAs performed on average values for each group and (b) comparisons of the proportion of subjects in each group showing HR accelerative change (AC), HR decelerative change (DC), or no change (NC) using chi2 statistics. HR direction and amplitude of changes were determined with the help of a conservative procedure previously developed and fitted to multidirectional HR responses (Lecanuet, Granier-Deferre, Jacquet, & Busnel, 1992). Results of ANOVAs indicated that a 26-s rocking stimulation induced a significant average HR acceleration (4.53 bpm) compared to a nonstimulated (control) group. Five seconds of rocking had a weaker, but still significant, effect on HR acceleration, but the two swaying conditions did not reliably affect either the HR or behavioral measures. Processing data nonparametrically confirmed that R26 stimulation evoked mostly AC (72%) and identified a gradual decrement of AC and DC percentage responses from Group R5, SW26 to Group SW5 while NC percentages raised. Hypotheses concerning the target sense activated by this stimulation were considered in relation to responses to auditory stimuli.

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Section: Stimulationmentioning

confidence: 88%

Fetal responsiveness to maternal passive swinging in low heart rate variability state: Effects of stimulation direction and duration

Lecanuet

Jacquet

2001

Developmental Psychobiology

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“…The occurrence of such a series of resonances might explain the unexpected increased responsiveness of end of gestation fetuses with increasing pitch of oc-1 3 tave band noises (emitted at 500 Hz, 2,000 Hz, and 5,000 Hz) found previously by Lecanuet, Granier-Deferre, and Busnel (1988). A linear attenuation model would predict decreasing responsiveness as a function of increasing frequency.…”

Section: General Commentsmentioning

confidence: 89%

What sounds reach fetuses: Biological and nonbiological modeling of the transmission of pure tones

et al. 1998

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“…Third, beginning with the first presentation of a VAS, the maximum FHR for each experimental trial was compared with the standard deviation during the control period. The first post-stimulation trial in which maximum FHR acceleration exceeded the control standard deviation was defined as the first response [Lecanuet et al, 1986[Lecanuet et al, , 1988. Fourth, after the first response had been detected, the number of consecutive responses was determined in which the post-stimulation FHR met the response criterion.…”

Section: Methods Of Determining Fhr Responsementioning

confidence: 99%

“…Fetal responses are assessed by measures of fetal habituation that reveal neurological integrity and maturity [Hepper, 1997;Doherty and Hepper, 2000;Sandman et al, 1997Sandman et al, , 1999b. Convincing evidence indicates that the fetus detects and responds to a variety of ex utero stimuli [Leader, 1994;Leader et al, 1982;Shalev et al, 1989;Zimmer et al, 1993;Grimwade et al, 1971;DeCasper and Fifer, 1980;Fifer and Moon, 1989;Groome et al, 1999;Lecanuet et al, 1988]. Fetal arousal to external stimulation is observed by 22 weeks and by 25-28 weeks of gestation, fetuses habituate to external stimulation [Doherty and Hepper, 2000;Leader et al, 1982;Leader and Baille, 1988;Madison et al, 1986aMadison et al, , 1986bShalev et al, 1989Shalev et al, , 1990Kisilevsky et al, 1992;Shahidullah and Hepper, 1994].…”

mentioning

confidence: 99%

Maternal Hypothalamic-Pituitary-Adrenal Disregulation during the Third Trimester Influences Human Fetal Responses

Sandman¹,

Glynn²,

Wadhwa

et al. 2003

Dev Neurosci

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Maternal peptides from the hypothalamic-pituitary-adrenal (HPA) axis rise during human pregnancy. The effects of circulating maternal adrenocorticotropin (ACTH) and β-endorphin (BE) on human fetal behavior was determined in 135 women during their 32nd week of gestation. Fetal behavior was measured by assessing heart rate habituation to a series of repeated vibroacoustic stimuli. Individual differences in habituation were determined by computing the number of consecutive responses above the standard deviation during a control period. There was no significant relation between levels of ACTH, BE and the rate of fetal heart rate habituation. However, an index of HPA disregulation (uncoupling of ACTH and BE) was related significantly to fetal behavior. Fetal exposure to high levels of maternal BE relative to ACTH was associated with significantly lower rates of habituation. Results indicate that maternal stress and stress-related peptides influence fetal response patterns. It is possible that this influence persists over the life span.

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Fetal cardiac and motor responses to octave-band noises as a function of central frequency, intensity and heart rate variability

Cited by 73 publications

References 30 publications

Fetal responsiveness to maternal passive swinging in low heart rate variability state: Effects of stimulation direction and duration

Fetal responsiveness to maternal passive swinging in low heart rate variability state: Effects of stimulation direction and duration

What sounds reach fetuses: Biological and nonbiological modeling of the transmission of pure tones

Maternal Hypothalamic-Pituitary-Adrenal Disregulation during the Third Trimester Influences Human Fetal Responses

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