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Default mode network: all studies

Page 130 of 155: studies 1,291 to 1,300 of 1,549, newest first. Back to the default mode network overview

Research

N,N‐dimethyltryptamine and Amazonian ayahuasca plant medicine

Human Psychopharmacology: Clinical and Experimental February 17, 2022 Edward James, Joachim Keppler, Ben Sessa et al. 41 citations

Abstract Objective Reports have indicated possible uses of ayahuasca for the treatment of conditions including depression, addictions, post‐traumatic stress disorder, anxiety and specific psychoneuroendocrine immune system pathologies. The article assesses potential ayahuasca and N,N‐dimethyltryptamine (DMT) integration with contemporary healthcare. The review also seeks to provide a summary of...

Visual hallucinations in Lewy body disease: pathophysiological insights from phenomenology

Journal of Neurology January 31, 2022 Fabrizia D'Antonio, M. Boccia, A. di Vita et al.

Visual hallucinations (VH) in Lewy body disease (LBD) have a heterogenous phenomenology classified into minor phenomena (MVH) and complex hallucinations (CVH). Mechanisms underpinning VH and their temporal aspects are largely unknown. According to the hodotopic model, we investigated whether changes in distinct cognitive domains and neural networks in the hallucination trait underpin temporal...

Typical and disrupted brain circuitry for conscious awareness in full-term and preterm infants.

Brain Communications 2022 Huiqing Hu, Rhodri Cusack, Lorina Naci

One of the great frontiers of consciousness science is understanding how early consciousness arises in the development of the human infant. The reciprocal relationship between the default mode network and fronto-parietal networks-the dorsal attention and executive control network-is thought to facilitate integration of information across the brain and its availability for a wide set of...

DOI: 10.1093/braincomms/fcac071 (opens in new tab) Full text (opens in new tab) Brain development Conscious awareness High-order networks Neonate +1

A single-arm open-label pilot study of brief mindfulness meditation to control impulsivity in Parkinson's disease.

PLoS One 2022 Jinsoo Koh, Maiko Takahashi, Yasuhiko Ohmae et al.

Impulse control disorders are detrimental neuropsychiatric symptoms of Parkinson's disease. Increased impulsivity is a predisposing factor for impulse control disorders and should therefore be controlled. Recently, mindfulness meditation as a non-drug therapy has been reported to be useful in improving neuropsychiatric symptoms, such as impulsivity. We performed a prospective single-arm,...

Functional network antagonism and consciousness.

Network Neuroscience 2022 Athena Demertzi, Aaron Kucyi, Adrián Ponce-Alvarez et al.

Spontaneous brain activity changes across states of consciousness. A particular consciousness-mediated configuration is the anticorrelations between the default mode network and other brain regions. What this antagonistic organization implies about consciousness to date remains inconclusive. In this Perspective Article, we propose that anticorrelations are the physiological expression of the...

DOI: 10.1162/netn_a_00244 (opens in new tab) Full text (opens in new tab) Anticorrelations Consciousness Functional connectivity Integration +2

Beyond the veil of duality—topographic reorganization model of meditation

Neuroscience of Consciousness 2022 Austin Clinton Cooper, Bianca Ventura, Georg Northoff 54 citations

Abstract Meditation can exert a profound impact on our mental life, with proficient practitioners often reporting an experience free of boundaries between a separate self and the environment, suggesting an explicit experience of “nondual awareness.” What are the neural correlates of such experiences and how do they relate to the idea of nondual awareness itself? In order to unravel the effects...

Neuroimaging Correlates of Treatment Response with Psychedelics in Major Depressive Disorder: A Systematic Review

Chronic Stress 2022 Sarah Kuburi, Anne-Marie Di Passa, Vanessa K Tassone et al. 14 citations

Preliminary evidence supports the use of psychedelics for major depressive disorder (MDD). However, less attention has been given to the neural mechanisms behind their effects. We conducted a systematic review examining the neuroimaging correlates of antidepressant response following psychedelic interventions for MDD. Through MEDLINE, Embase, and APA PsycINFO, 187 records were identified and 42...

DOI: 10.1177/24705470221115342 (opens in new tab) Neuroimaging Clinical psychology

Effects of classic psychedelic drugs on turbulent signatures in brain dynamics

Network Neuroscience 2022 Josephine Cruzat, Yonatan Sanz Perl, Anira Escrichs et al. 28 citations

Abstract Psychedelic drugs show promise as safe and effective treatments for neuropsychiatric disorders, yet their mechanisms of action are not fully understood. A fundamental hypothesis is that psychedelics work by dose-dependently changing the functional hierarchy of brain dynamics, but it is unclear whether different psychedelics act similarly. Here, we investigated the changes in the...

DOI: 10.1162/netn_a_00250 (opens in new tab) Full text (opens in new tab) Turbulence Dynamics music Cognitive psychology

Psychedelics and Hallucinogens in Psychiatry: Finding New PharmacologicalTargets

Current Topics in Medicinal Chemistry December 2, 2021 Teresa Reynolds de Sousa, João Rema, Sérgio Machado et al. 7 citations

Background: The therapeutic options for neurobehavioral disorders are still limited, and in many cases, they lack a satisfactory balance between efficacy and side effects. Objective: This work aims to review current evidence regarding the potential contribution of psychedelics and hallucinogens to the discovery of new drugs for treating different psychiatric disorders. Discussion:...

Criticality Creates a Functional Platform for Network Transitions Between Internal and External Processing Modes in the Human Brain

Frontiers in Systems Neuroscience December 1, 2021 Minkyung Kim, Hyoungkyu Kim, Zirui Huang et al.

Continuous switching between internal and external modes in the brain appears important for generating models of the self and the world. However, how the brain transitions between these two modes remains unknown. We propose that a large synchronization fluctuation of brain networks, emerging only near criticality (i.e., a balanced state between order and disorder), spontaneously creates...

DOI: 10.3389/fnsys.2021.657809 (opens in new tab) Full text (opens in new tab) Criticality Consciousness Oscillator model EEG +2