scholarly journals Extended consciousness as revealed by the angular gyrus model of consciousness

Author(s):  
Graeme E Smith

The Extended Consciousness builds on the strengths of the proto conscious and the core consciousness to add a sense of experience onto the basic alertness provided by core consciousness. The Angular Gyrus Model of Consciousness provides some hints as to how the experential image is built. In this article I explore the role of the Temporal-Parietal Fiber Intersection Area in providing links between other parts of the brain and the Angular Gyrus that encourage the formation of the experential image.

2013 ◽  
Author(s):  
Graeme E Smith

The Extended Consciousness builds on the strengths of the proto conscious and the core consciousness to add a sense of experience onto the basic alertness provided by core consciousness. The Angular Gyrus Model of Consciousness provides some hints as to how the experential image is built. In this article I explore the role of the Temporal-Parietal Fiber Intersection Area in providing links between other parts of the brain and the Angular Gyrus that encourage the formation of the experential image.


2013 ◽  
Author(s):  
Graeme E Smith

The Angular Gyrus sits at the point where the Temporal and Parietal Lobes join. It is a point where integrative processes link together the Where and What pathways through the brain and link them to time. It is also the most likely location for at least two centers of consciousness. In this article the location is discussed and it's potential for a model of consciousness that replaces the Declarative Memory Model of Consciousness previously put forward. It's main benefit over the Declarative Memory Model of Consciousness is that it allows for the preservation of consciousness despite the loss of declarative memory in the cases of Medial Temporal Lobe injury/disease. However Connectome studies might support this model in that the TemporoParietal Fiber Intersection Area provides 7 different white matter tracts that intersect in this area.


2021 ◽  
Author(s):  
Keiichi Onoda

Finding the neural basis of consciousness is a challenging issue, and it is still inconclusive where the core of consciousness is distributed in the brain. The global neuronal workspace theory (GNWT) emphasizes the role of the frontoparietal regions, whereas the integrated information theory (IIT) argues that the posterior part of the brain is the core of consciousness. IIT has proposed “main complex” as the core of consciousness in a dynamic system, which is a set of elements that the information loss in a hierarchical partition approach is the largest among that of all its supersets and subsets. However, no experimental study has reported the core of consciousness using the main complex for actual brain activity. This study estimated the main complex of brain dynamics using a functional MRI. The whole-brain fMRI data of eight conditions (seven tasks and a rest state) were divided into multiple elements based on network atlases, and the main complex of the dynamic system was estimated for each condition. It is assumed that, if there is a set of elements in the complex that are common to all conditions, the set is likely to contain the core of consciousness. Executive control, salience, and dorsal/ventral attention networks were commonly included in the main complex across all conditions, implying that these networks are responsible for the core of consciousness. This finding is consistent with the GNWT, as these networks are across the prefrontal and parietal regions.


2022 ◽  
pp. 372-396
Author(s):  
Johan Cools

This chapter addresses the destructive impact of the media sphere on human perception. Humanity is currently facing an avalanche of cataclysmic events which have been abused by the media sphere to provoke fear and psychosis. This toxic propaganda has gradually infected the subconscious mind with false belief systems and negative habitual thinking patterns. To provide a broader perspective on some of the core working principles of conscious and subconscious perception and the role of the brain, there is a discussion about levels of consciousness, brainwaves, the RAS (reticular activating system), and neuroplasticity. The application of these principles enables the development of a benign and practical method for counter-hacking the subconscious heart-mind as an antidote for the catastrophic influence of the media sphere on human perception. The concepts of this methodology can be integrated into a PEG (psychecology educational game). Such a game holds the potential to increase global coherence by providing a timely yet symptomatic antidote for toxic intention in the media sphere.


2011 ◽  
Vol 23 (4) ◽  
pp. 955-974 ◽  
Author(s):  
Barbara L. Ganzel ◽  
Pamela A. Morris

AbstractWe previously used the theory of allostasis as the foundation for a model of the current stress process. This work highlighted the core emotional systems of the brain as the central mediator of the relationship between stress and health. In this paper, we extend this theoretical approach to consider the role of developmental timing. In doing so, we note that there are strong implicit models that underlie current developmental stress research in the social and life sciences. We endeavor to illustrate these modelsexplicitlyas we review the evidence behind each one and discuss their implications. We then extend these models to reflect recent findings from research in life span human neuroscience. The result is a new set of developmental allostatic models that provide fodder for future empirical research, as well as novel perspectives on intervention.


2013 ◽  
Author(s):  
Graeme E Smith

The Angular Gyrus sits at the point where the Temporal and Parietal Lobes join. It is a point where integrative processes link together the Where and What pathways through the brain and link them to time. It is also the most likely location for at least two centers of consciousness. In this article the location is discussed and it's potential for a model of consciousness that replaces the Declarative Memory Model of Consciousness previously put forward. It's main benefit over the Declarative Memory Model of Consciousness is that it allows for the preservation of consciousness despite the loss of declarative memory in the cases of Medial Temporal Lobe injury/disease. However Connectome studies might support this model in that the TemporoParietal Fiber Intersection Area provides 7 different white matter tracts that intersect in this area.


2013 ◽  
Author(s):  
Graeme E Smith

The Angular Gyrus sits at the point where the Temporal and Parietal Lobes join. It is a point where integrative processes link together the Where and What pathways through the brain and link them to time. It is also the most likely location for at least two centers of consciousness. In this article the location is discussed and it's potential for a model of consciousness that replaces the Declarative Memory Model of Consciousness previously put forward. It's main benefit over the Declarative Memory Model of Consciousness is that it allows for the preservation of consciousness despite the loss of declarative memory in the cases of Medial Temporal Lobe injury/disease. However Connectome studies might support this model in that the TemporoParietal Fiber Intersection Area provides 7 different white matter tracts that intersect in this area.


2020 ◽  
Author(s):  
John Rothman

A growing body of evidence supports a role for catecholaminergic dysfunction in the core symptoms of autism spectrum disorder (ASD). This paper reviews the direct and indirect role of catecholamines on the central and peripheral nervous systems in ASD. Catecholamines innervate every tissue in the body and almost all tracts of the brain, providing a common neurologic regulatory mechanism for all ASD symptoms. Because the morphology of the catecholaminergic synapse is regulated by growth factors that are released contemporaneously with neurotransmitters, an event that results in abnormally large catecholamine release, will also release high levels of growth factors, which can result in the budding and arborization of nerve terminals. Here, we hypothesize that a hypertrophic synaptic morphology can occur in catecholaminergic systems and increase catecholaminergic tone throughout the body, resulting in an imbalance between catecholaminergic neurologic mechanisms and those that oppose them, and consequently pathology. By exerting a presynaptic effect to inhibit tyrosine hydroxylase and thus the synthesis, storage and release of all catecholamines, L1–79 (a tyrosine hydroxylase inhibitor) may diminish neurotransmitter release and its associated growth factors exerting a therapeutic effect on ASD by reducing the hypertrophic morphology of the synapse and bringing catecholamines back into a homeostatic balance with oppositional neurologic and metabolic influences.


Author(s):  
J.E. Johnson

Although neuroaxonal dystrophy (NAD) has been examined by light and electron microscopy for years, the nature of the components in the dystrophic axons is not well understood. The present report examines nucleus gracilis and cuneatus (the dorsal column nuclei) in the brain stem of aging mice.Mice (C57BL/6J) were sacrificed by aldehyde perfusion at ages ranging from 3 months to 23 months. Several brain areas and parts of other organs were processed for electron microscopy.At 3 months of age, very little evidence of NAD can be discerned by light microscopy. At the EM level, a few axons are found to contain dystrophic material. By 23 months of age, the entire nucleus gracilis is filled with dystrophic axons. Much less NAD is seen in nucleus cuneatus by comparison. The most recurrent pattern of NAD is an enlarged profile, in the center of which is a mass of reticulated material (reticulated portion; or RP).


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