Interactive responses to stimulation of the amygdaloid central nucleus and baroreceptor afferent activation in the rabbit

Pascoe, Jeffrey P.; Bradley, David J.; Spyer, K. M.

doi:10.1016/0165-1838(89)90164-1

Cited by 32 publications

(10 citation statements)

References 32 publications

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“…Changes in autonomic control of the heart from the medulla oblongata to higher cortical processes between 27 and 30 weeks gestation have been inferred from a study of fetuses with progressive levels of neural tube defects (Yoshizato et al, 1994). These observations are supported by animal models which show that stimulation of single central loci can rapidly increase both heart rate and blood flow to muscles (Koizumi & Kollai, 1981) and that muscle paralysis does not eliminate cardiovascular responses to direct afferent stimulation (Pascoe, Bradley, & Spyer, 1989). However, a series of studies (text continues on page 698)…”

Section: Discussionmentioning

confidence: 98%

Prenatal development of intrafetal and maternal-fetal synchrony.

DiPietro

Caulfield

Irizarry

et al. 2006

Behavioral Neuroscience

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Fetal and maternal data were monitored serially at 6 gestational ages from 20 to 38 weeks in 195 Peruvian fetuses. Digitized data included fetal heart rate and motor activity, as well as maternal heart rate and electrodermal conductance. Time series analysis evaluated the development of synchrony in 2 streams of fetal functioning and between mothers and fetuses. Intrafetal synchrony between heart rate and motor activity developed in an orderly fashion, with peak cross-correlation approaching an asymptote at 5 s at 28 weeks. Synchrony was not observed between fetal heart rate and maternal measures. Fetal motor activity exhibited synchrony with both maternal electrodermal and heart rate activity. Implications for revealing fundamental properties of neural development prior to birth are discussed.

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Section: Discussionmentioning

confidence: 98%

Prenatal development of intrafetal and maternal-fetal synchrony.

DiPietro

Caulfield

Irizarry

et al. 2006

Behavioral Neuroscience

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“…Conversely, there are also projections from the central nucleus directly to the NTS (435,494), particularly the dorsomedial subnucleus that is a major recipient area for baroreceptor afferent fibers. This pathway may subserve the facilitatory effect on the baroreceptor reflex observed when the central nucleus is stimulated (390).…”

Section: Amygdalamentioning

confidence: 98%

Functional organization of central pathways regulating the cardiovascular system

Dampney

1994

Physiological Reviews

1,490

1,249

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“…This distinction was based on observations that changes in fetal heart rate can occur slightly prior to or simultaneously with a movement. Also, in animal preparations, stimulation of single central loci can rapidly increase both heart rate and blood flow to muscles (Koizumi & Kollai, 1981), and muscle paralysis does not eliminate cardiovascular responses to direct afferent stimulation (Pascoe, Bradley, & Spyer, 1989). …”

Section: Chapter 7 Integration Of Fetal Movement and Fetal Heart Ratementioning

confidence: 99%

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DiPietro¹,

Costigan²,

Voegtline³

2015

Monographs Society Res Child

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Among the earliest volumes of this Monograph series was a report by Lester Sontag and colleagues, of the esteemed Fels Institute, on the heart rate of the human fetus as an expression of the developing nervous system. Here, some 75 years later, we commemorate this work and provide historical and contemporary context on knowledge regarding fetal development, as well as results from our own research. These are based on synchronized monitoring of maternal and fetal parameters assessed between 24 and 36 weeks gestation on 740 maternal-fetal pairs compiled from eight separate longitudinal studies, which commenced in the early 1990s. Data include maternal heart rate, respiratory sinus arrhythmia, and electrodermal activity and fetal heart rate, motor activity, and their integration. Hierarchical linear modeling of developmental trajectories reveals that the fetus develops in predictable ways consistent with advancing parasympathetic regulation. Findings also include: within-fetus stability (i.e., preservation of rank ordering over time) for heart rate, motor, and coupling measures; a transitional period of decelerating development near 30 weeks gestation; sex differences in fetal heart rate measures but not in most fetal motor activity measures; modest correspondence in fetal neurodevelopment among siblings as compared to unrelated fetuses; and deviations from normative fetal development in fetuses affected by intrauterine growth restriction and other conditions. Maternal parameters also change during this period of gestation and there is evidence that fetal sex and individual variation in fetal neurobehavior influence maternal physiological processes and the local intrauterine context. Results are discussed within the framework of neuromaturation, the emergence of individual differences, and the bidirectional nature of the maternal-fetal relationship. We pose a number of open questions for future research. Although the human fetus remains just out of reach, new technologies portend an era of accelerated discovery of the earliest period of development.

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Interactive responses to stimulation of the amygdaloid central nucleus and baroreceptor afferent activation in the rabbit

Cited by 32 publications

References 32 publications

Prenatal development of intrafetal and maternal-fetal synchrony.

Prenatal development of intrafetal and maternal-fetal synchrony.

Functional organization of central pathways regulating the cardiovascular system

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