Consciousness and the brainstem

@article{Parvizi2001ConsciousnessAT,
  title={Consciousness and the brainstem},
  author={Josef Parvizi and Antonio R. Damasio},
  journal={Cognition},
  year={2001},
  volume={79},
  pages={135-160}
}

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References

SHOWING 1-10 OF 165 REFERENCES
Investigating the biology of consciousness.
  • A. Damasio
  • Psychology, Biology
    Philosophical transactions of the Royal Society of London. Series B, Biological sciences
  • 1998
TLDR
This brief essay distinguishes between two kinds of consciousness: core consciousness and extended consciousness, which corresponds to the transient process that is incessantly generated relative to any object with which an organism interacts, and during which a transient core self and transient sense of knowing are automatically generated.
Of dreaming and wakefulness
An ascending reticular activating system in the brain stem.
  • H. Magoun
  • Psychology, Biology
    Harvey lectures
  • 1951
TLDR
The waking state has generally been thought to depend in an important fashion upon the arousing influence at the cerebral cortex of afferent messages initiated by sensory stimulation.
The neuronal basis for consciousness.
TLDR
The goal of this paper is to explore the basic assumption that large-scale, temporal coincidence of specific and non-specific thalamic activity generates the functional states that characterize human cognition.
Viewpoint: the core and matrix of thalamic organization
Noradrenergic modulation of cognitive function: clinical implications of anatomical, electrophysiological and behavioural studies in animal models.
TLDR
It is proposed that the LC/noradrenergic system acts to create dynamic, widespread patterns of electrophysiological activity in neocortex and other forebrain areas that provide essential substrates for the operation of attentional and other cognitive processes.
Brain stem reticular formation and activation of the EEG.
An activating system in brain stem of monkey.
TLDR
It is demonstrated that direct high-frequency stimulation of this medial system desynchronized electrocortical activity in a manner exactly paralleling arousal from sleep or.
A STUDY OF THALAMO-CORTICAL RELATIONS
TLDR
A topographical analysis of thalamo-cortical relations as revealed by alterations in the electrocorticogram induced by localized thalamic stimulation is presented, based upon the assumption that the complex spontaneous pattern of the cortex represents an aggregation of various sorts of activity.
...
...