Loss of consciousness requires shutting down specific regions of the ascending reticular activating system
Loss of consciousness is strongly linked across clinical studies to structural disruption and injury within specific components of the ascending reticular activating system.
The retrieved literature consistently supports the specific claim that loss of consciousness is tied to the functioning and structural integrity of the ascending reticular activating system (ARAS). Multiple diffusion tensor tractography and clinical review papers demonstrate that damage or injury to the ARAS pathways correlates strongly with impaired consciousness states such as comas and vegetative states.
S. Jang, H.S. Kim. Aneurysmal Subarachnoid Hemorrhage Causes Injury of the Ascending Reticular Activating System: Relation to Consciousness. 2015. https://doi.org/10.3174/ajnr.A4203
Demonstrates that injury to the ascending reticular activating system is directly related to impaired consciousness levels following subarachnoid hemorrhage.
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Sung Ho Jang, Young Hyeon Kwon. The relationship between consciousness and the ascending reticular activating system in patients with traumatic brain injury. 2020. https://doi.org/10.1186/s12883-020-01942-7
Shows that traumatic brain injury patients with impaired consciousness exhibit significant structural damage in both the upper and lower portions of the ascending reticular activating system.
Shaurya Taran, P. Gros, T. Gofton, Gordon J. Boyd, J. N. Briard, M. Chassé, Jeffrey M. Singh. The reticular activating system: a narrative review of discovery, evolving understanding, and relevance to current formulations of brain death. 2023. https://doi.org/10.1007/s12630-023-02421-6
Reviews historical and modern neurological frameworks establishing the reticular activating system and its ascending projections as the primary anatomical substrate localized for consciousness.
S. Jang, O. Kim, S. Kim, Jong Bum Kim. The Relation Between Loss of Consciousness, Severity of Traumatic Brain Injury, and Injury of Ascending Reticular Activating System in Patients With Traumatic Brain Injury. 2019. https://doi.org/10.1097/PHM.0000000000001243
Establishes a quantitative link between loss of consciousness and the degree of injury sustained by various components of the ascending reticular activating system.
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