Knowledge Tree
Relations (1)
related 3.00 — strongly supporting 7 facts
The precuneus is a core anatomical and functional component of the default mode network, as explicitly identified in [1] and [2]. This relationship is further supported by evidence showing that the precuneus is a primary node affected by conditions or substances that modulate the default mode network, such as epilepsy [3], loss of consciousness [4], and psychedelic use {fact:1, fact:7}.
Facts (7)
Sources
The Mechanisms of Psychedelic Visionary Experiences - Frontiers frontiersin.org 4 facts
referenceThe Default Mode Network is functionally and anatomically connected with the thalamus and precuneus, a connectivity that is crucial to consciousness, according to Cunningham et al. (2017).
claimEpileptic seizures, including complex partial, generalized tonic-clonic, and absence seizures, impair primary nodes of the Default Mode Network (DMN), specifically the precuneus/PCC, medial frontal cortex, lateral parietal cortex, and the anterior cingulate cortex (ACC), resulting in long-lasting decreases in DMN activity.
referenceThe major subdivisions of the Default Mode Network include the ventral medial and dorsal medial regions of the prefrontal cortex, the posterior cingulate cortex (PCC) with the precuneus, and the lateral parietal cortex.
referencePalhano-Fontes et al. (2015) found that ayahuasca consumption causes a significant decrease in activity throughout most parts of the Default Mode Network, particularly in the posterior cingulate cortex, precuneus, and medial prefrontal cortex, while also reducing functional connectivity within the posterior cingulate cortex/precuneus.
A Synergistic Workspace for Human Consciousness Revealed by ... elifesciences.org 2 facts
claimRegions showing consistent decreases in ΦR during loss of consciousness were primarily members of the global synergistic workspace, specifically the default mode network (bilateral precuneus and medial prefrontal cortex) and bilateral inferior parietal cortex, with involvement of left temporal cortices.
claimThe default mode network (DMN) comprises the posterior cingulate, precuneus, medial prefrontal cortex, and inferior parietal cortices.
Ancient Roots of Today's Emerging Renaissance in ... link.springer.com 1 fact
claimClassic psychedelics initiate a cascade of altered neural connectivity and blood-flow across brain regions including the default-mode network (medial prefrontal cortex, posterior cingulate cortex, inferior parietal lobule, lateral temporal cortex, hippocampus, and precuneus), the amygdala, the thalamus, and the claustrum.