The Emergence of Human Consciousness: From Fetal to Neonatal Life

@article{Lagercrantz2009TheEO,
  title={The Emergence of Human Consciousness: From Fetal to Neonatal Life},
  author={H. Lagercrantz and J. Changeux},
  journal={Pediatric Research},
  year={2009},
  volume={65},
  pages={255-260}
}
A simple definition of consciousness is sensory awareness of the body, the self, and the world. The fetus may be aware of the body, for example by perceiving pain. It reacts to touch, smell, and sound, and shows facial expressions responding to external stimuli. However, these reactions are probably preprogrammed and have a subcortical nonconscious origin. Furthermore, the fetus is almost continuously asleep and unconscious partially due to endogenous sedation. Conversely, the newborn infant… Expand
The emergence of consciousness: Science and ethics.
TLDR
Assuming that consciousness is mainly localized in the cortex, consciousness cannot emerge before 24 gestational weeks when the thalamocortical connections from the sense organs are established, the limit of legal abortion at 22-24 weeks in many countries makes sense. Expand
Basic consciousness of the newborn.
TLDR
The newborn infant fulfills the criteria of displaying a basic level of consciousness, being aware of its body and him/her-self and somewhat about the external world. Expand
The birth of consciousness.
TLDR
The spontaneous resting activity discovered in the cortex of newborn infants may correspond to what William James called "the stream of consciousness". Expand
The Conscious Infant
The newborn infant fulfills several criteria of being conscious such as being awake, aware of itself and the environment, imitate, and feel emotions and joy. It can also feel and integrate multipleExpand
79 The Neurobiology of Consciousness christof koch koch
    abstract Over the past two decades, the mystery of consciousness and its material basis has begun to be investigated by the sciences. The neurobiological approach to consciousness aims to identifyExpand
    Consciousness: here, there and everywhere?
    • G. Tononi, C. Koch
    • Psychology, Medicine
    • Philosophical Transactions of the Royal Society B: Biological Sciences
    • 2015
    The science of consciousness has made great strides by focusing on the behavioural and neuronal correlates of experience. However, while such correlates are important for progress to occur, they areExpand
    Consciousness: Here, There but Not Everywhere
    TLDR
    Integrated Information Theory (IIT) provides a principled account of both the quantity and the quality of an individual experience, and a calculus to evaluate whether or not a particular system of mechanisms is conscious and of what. Expand
    Are There Islands of Awareness?
    TLDR
    Conditions in which brain activity supports consciousness even when that activity is fully causally isolated from the body and its environment are considered, including ex cranio brains, hemispherotomy, and in cerebral organoids. Expand
    The Soul, as an Uninhibited Mental Activity, is Reduced into Consciousness by Rules of Quantum Physics
    TLDR
    It is proposed that consideration of the rules of quantum physics is necessary to understand how the soul is reduced into consciousness. Expand
    Ontogeny of perception of maternal and nosocomial stimuli in infants
    Preterm born infants in neonatal units experience unusual sensory inputs that can shape and nurture their developing brains differently from full-term healthy newborn infants. To improve the care ofExpand
    ...
    1
    2
    3
    4
    5
    ...

    References

    SHOWING 1-10 OF 78 REFERENCES
    Attention, self-regulation and consciousness.
    • M. Posner, M. Rothbart
    • Psychology, Medicine
    • Philosophical transactions of the Royal Society of London. Series B, Biological sciences
    • 1998
    TLDR
    Experiments suggest an integrated network of neural areas involved in executive attention, associated with the voluntary ability to select among competing items, to correct error and to regulate the authors' emotions, that serve to regulate both cognition and emotion. Expand
    Consciousness without a cerebral cortex: A challenge for neuroscience and medicine
    • B. Merker
    • Medicine, Psychology
    • Behavioral and Brain Sciences
    • 2007
    TLDR
    It is suggested that brainstem mechanisms are integral to the constitution of the conscious state, and that an adequate account of neural mechanisms of conscious function cannot be confined to the thalamocortical complex alone. Expand
    The development of conscious control in childhood
    • P. Zelazo
    • Medicine, Psychology
    • Trends in Cognitive Sciences
    • 2004
    TLDR
    The hierarchical LOCs identified by this analysis are useful for understanding the complex structure of conscious experience in adults, and they provide a metric for measuring the level at which consciousness is operating in specific situations. Expand
    The Ferrier Lecture 1998 The molecular biology of consciousness investigated with genetically modified mice
    • J. Changeux
    • Psychology, Medicine
    • Philosophical Transactions of the Royal Society B: Biological Sciences
    • 2006
    TLDR
    The question is raised of the relevance of experimental work with the mouse and some of its genetically modified individuals in the study of consciousness and the contribution of defined neuronal nicotinic receptors species to some of these processes is demonstrated and the data discussed within the framework of recent neurocomputational models for access to consciousness. Expand
    The importance of ‘awareness’ for understanding fetal pain
    TLDR
    The uncritical view that the nature of presumed fetal pain perception can be assessed by reference to the prematurely born infant is challenged and Rigorously controlled studies of invasive procedures and analgesia in the fetus are required to clarify the impact of fetal nociception on postnatal pain sensitivity and neural development. Expand
    Brain, conscious experience and the observing self
    TLDR
    Conscious perception, like the sight of a coffee cup, seems to involve the brain identifying a stimulus, but conscious input activates more brain regions than are needed to identify coffee cups and faces, which do not serve stimulus identification as such. Expand
    The Neuronal Workspace Model: Conscious Processing and Learning
    TLDR
    This chapter examines formal models, expressed in terms of neuronal networks, that link together the molecular, neuronal, physiological, and behavioral/mental data on access to consciousness and shows that the dynamics of the model lead to the spontaneous and sudden formation of conscious ‘global’ activity states which can be broadcasted to many processors. Expand
    Conscious, preconscious, and subliminal processing: a testable taxonomy
    TLDR
    A taxonomy is proposed that distinguishes between vigilance and access to conscious report, as well as between subliminal, preconscious and conscious processing, and that conscious perception is systematically associated with surges of parieto-frontal activity causing top-down amplification. Expand
    Cortical Pain Responses in Human Infants
    TLDR
    It is concluded that noxious information is transmitted to the preterm infant cortex from 25 weeks, highlighting the potential for both higher-level pain processing and pain-induced plasticity in the human brain from a very early age. Expand
    The emergence of the mind—a borderline of human viability?
    TLDR
    This extensive report of about 250 pages written by leading professionals in philosophy, law, sociology, anthropology, medicine and nursing besides representative laymen is thorough and impressive, but the main shortcoming is that the development of the brain and the emergence of consciousness are barely discussed at all. Expand
    ...
    1
    2
    3
    4
    5
    ...