Knowledge Tree
thalamus
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Self-awareness, self-regulation, and self-transcendence (S-ART) frontiersin.org 7 facts
referenceBrain areas critical for their interactions with the prefrontal cortex (PFC) in emotion regulation include the amygdala, hippocampus, striatum (including the nucleus accumbens), thalamus, and insula.
claimThe periaqueductal gray (PAG), parabrachial nucleus (PBN), midbrain colliculi, thalamus, hypothalamus, and posterior insular cortex (PIC) are involved in monitoring, deciphering, and controlling interoceptive feedback at a non-conscious level.
claimLong-term meditators show morphological increases in gray matter volume and concentration in areas related to the Experiential-Embodied-Self (EES) network, including the cerebellum, left supplementary motor area (SMA), thalamus, caudate, striatum, and parasympathetic control centers of the medulla, according to studies by Pagnoni and Cekic (2007), Luders et al. (2009), and Vestergaard-Poulsen et al. (2009).
claimSelf-relevant information is attributed an emotional tone in the ventral posterior nucleus (Vpo) of the thalamus before being somatotopically represented in the posterior and anterior insula (PIC/AIC).
measurementTwo studies by Grant et al. (2010a) and Gard et al. (2012) showed no difference in brain activity during pain anticipation, but found stronger activation in pain-related areas (mid-cingulate, insula, SII, and thalamus) during the experience of pain while maintaining a 'mindful state'.
claimThe insular cortex's connections with the thalamus, HPA axis, and brainstem provide a mechanism for viscerosomatic and homeostatic feedback to the executive monitor and regulate sympathetic tone (citing Critchley, 2005; Craig, 2009).
claimThe self-specifying sensory-motor convergence contributing to the EES (Enactive-Embodied-Self) network is localized to a distributed set of interconnected spinothalamocortical regions, including the periaqueductal gray (PAG), parabrachial nucleus (PBN), midbrain colliculi, thalamus, hypothalamus, and posterior insular cortex (PIC).
A Synergistic Workspace for Human Consciousness Revealed by ... elifesciences.org 4 facts
referenceThe study 'Thalamic dual control of sleep and wakefulness' published in Nature Neuroscience details the dual control mechanism of the thalamus regarding sleep and wakefulness.
referenceThe research paper titled 'Consciousness depends on integration between parietal cortex, striatum, and thalamus' was published in Cell Systems.
referenceThe study 'Thalamus modulates consciousness via layer-specific control of cortex' published in Neuron posits that the thalamus modulates consciousness through layer-specific control of the cortex.
claimThe authors propose that when the thalamus and sensory cortices lose the ability to respond to stimuli, they cease providing information to the synergistic core of the global workspace, resulting in disconnection from the external world and loss of consciousness.
The Mechanisms of Psychedelic Visionary Experiences - Frontiers frontiersin.org Sep 27, 2017 3 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).
claimVollenweider (1998) attributes the mechanisms of action of psychedelics to effects on frontal-subcortical circuits, which are organizational networks involving neuronal linkages and feedback loops between frontal cortical areas and the thalamus.
referenceThe Default Mode Network primarily involves connections among the thalamus, posterior cingulate cortex (PCC), medial prefrontal cortex (mPFC), and areas of the limbic system (parahippocampal cortex and the hippocampus) that function as a network for information routing and integration, as described by Buckner et al. (2008).
Protocol for testing global neuronal workspace and integrated ... journals.plos.org 3 facts
referenceRedinbaugh et al. (2020) demonstrated that the thalamus modulates consciousness via layer-specific control of the cortex.
referenceTasserie et al. (2022) demonstrated that deep brain stimulation of the thalamus restores signatures of consciousness in a nonhuman primate model.
referenceAfrasiabi M et al. concluded that consciousness depends on integration between the parietal cortex, striatum, and thalamus, as published in Cell Systems in 2021.
The function(s) of consciousness: an evolutionary perspective frontiersin.org Nov 25, 2024 2 facts
referenceC.J. Whyte, M.J. Redinbaugh, J.M. Shine, and Y.B. Saalmann published 'Thalamic contributions to the state and contents of consciousness' in Neuron in 2024.
claimThe higher-order nuclei of the thalamus appear to play a central role in the conscious visual display, according to research by La Terra et al. (2022) and Whyte et al. (2024).
Attention and consciousness - SelfAwarePatterns selfawarepatterns.com Jun 12, 2022 1 fact
claimNeuroscientific research indicates that selective attention is a multistep process occurring in both early and late processing stages, beginning in the thalamus and extending through sensory regions to motor regions.
Is There a Male Brain and a Female Brain? | Child & Family Blog childandfamilyblog.com 1 fact
claimStudies of the pallidum, thalamus, cerebellum, and nucleus accumbens have found no significant sex/gender differences in average size.
Psychedelics and Consciousness: Distinctions, Demarcations, and ... ouci.dntb.gov.ua 1 fact
referenceWard published 'The thalamic dynamic core theory of conscious experience' in Consciousness and Cognition, which presents a theory regarding the thalamus and conscious experience.
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.
The development of consciousness from an evolutionary perspective academia.edu 1 fact
claimAnesthetics operate by impeding or altering the frequency locking of brain regions, such as the alteration of alpha networks and harmonics across the insular, cingulate, and prefrontal cortices, thalamus, and brainstem in the case of pain.
Psychedelics, Sociality, and Human Evolution frontiersin.org 1 fact
referencePsychedelics function by reducing thalamic filtering of interoceptive and exteroceptive information, which sustains an increased information flow to particular areas of the cortex, according to Vollenweider and Preller (2020).
Resolving the evolutionary paradox of consciousness link.springer.com Apr 1, 2024 1 fact
claimThe human brain's 'pain matrix' includes the thalamus, the primary and secondary somatosensory cortices, the insular cortex, the anterior cingulate cortex, and the prefrontal cortex.
4.5 Consciousness – Cognitive Psychology nmoer.pressbooks.pub 1 fact
claimIn patients with cortical blindness, visual cortex areas may still receive visual input through projections from the thalamus and superior colliculus, which allows for preserved visual abilities that occur without conscious awareness.