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Default mode network: all studies

Page 83 of 155: studies 821 to 830 of 1,549, newest first. Back to the default mode network overview

Research

Meditation and the brain - Neuronal correlates of mindfulness as assessed with near-infrared spectroscopy.

Psychiatry Research Neuroimaging January 30, 2018 Friederike Gundel, Johanna Von Spee, Sabrina Schneider et al.

Mindfulness meditation as a therapeutic intervention has been shown to have positive effects on psychological problems such as depression, pain or anxiety disorders. In this study, we used functional near-infrared spectroscopy (fNIRS) to detect differences in hemodynamic responses of meditation experts (14 participants) and a control group (16 participants) in a resting and a mindfulness...

Mindfulness and dynamic functional neural connectivity in children and adolescents.

Behavioural Brain Research January 15, 2018 Hilary A Marusak, Farrah Elrahal, Craig A Peters et al.

Interventions that promote mindfulness consistently show salutary effects on cognition and emotional wellbeing in adults, and more recently, in children and adolescents. However, we lack understanding of the neurobiological mechanisms underlying mindfulness in youth that should allow for more judicious application of these interventions in clinical and educational settings. Using multi-echo...

Altered Effective Connectivity in the Default Network of the Brains of First-Episode, Drug-Naïve Schizophrenia Patients With Auditory Verbal Hallucinations.

Frontiers in Human Neuroscience 2018 Zhiyong Zhao, Xuzhou Li, Guoxun Feng et al.

Although the default mode network (DMN) is known to be abnormal in schizophrenia (SZ) patients with auditory verbal hallucinations (AVHs), it is still unclear whether AVHs that occur in SZ are associated with certain information flow in the DMN. This study collected resting-state functional magnetic resonance imaging data from 28 first-episode, drug-naïve SZ patients with AVHs, 20 SZ patients...

DOI: 10.3389/fnhum.2018.00456 (opens in new tab) Full text (opens in new tab) Default mode network Granger causality analysis Auditory verbal hallucinations Effective connectivity +1

Neurofeedback and the Neural Representation of Self: Lessons From Awake State and Sleep.

Frontiers in Human Neuroscience 2018 Andreas A Ioannides

Neurofeedback has been around for half a century, but despite some promising results it is not yet widely appreciated. Recently, some of the concerns about neurofeedback have been addressed with functional magnetic resonance imaging and magnetoencephalography adding their contributions to the long history of neurofeedback with electroencephalography. Attempts to address other concerns related...

DOI: 10.3389/fnhum.2018.00142 (opens in new tab) Full text (opens in new tab) Default mode network Electroencephalography EEG Magnetoencephalography meg Mothering effect +1

Widespread cortical PET abnormalities in an adolescent related to a PNES dissociative state, PTSD, ADHD, and domestic violence exposure.

Scandinavian Journal of Child and Adolescent Psychiatry and Psychology 2018 Dejan Stevanovic, Leposava Brajkovic, Madhur Kumar Srivastava et al.

Accumulated evidence indicates that exposure to trauma is associated with the development of cognitive impairments and psychiatric symptoms in children and adolescents. In this case study of a female adolescent of 17 years, we aimed to evaluate how cortical positron emission tomography (PET) abnormalities relate to psychogenic non-epileptic seizure (PNES) dissociative state, post-traumatic...

Dream Recall Frequency Is Associated With Medial Prefrontal Cortex White-Matter Density.

Frontiers in Psychology 2018 Raphael Vallat, Jean-Baptiste Eichenlaub, Alain Nicolas et al.

Recent findings indicate that dream recall frequency (DRF) is associated with neurophysiological traits, and notably the regional cerebral blood flow at rest within the medial prefrontal cortex (MPFC) and the temporo-parietal junction (TPJ). To test whether, such physiological traits are rooted in anatomical specificities, we used voxel-based morphometry to compare the white matter and gray...

The "Instinct" of Imagination. A Neuro-Ethological Approach to the Evolution of the Reflective Mind and Its Application to Psychotherapy.

Frontiers in Human Neuroscience 2018 Antonio Alcaro, Stefano Carta

Recent neuro-psychoanalytic literature has emphasized the view that our subjective identity rests on ancient subcortical neuro-psychic processes expressing unthinking forms of experience, which are "affectively intense without being known" (Solms and Panksepp, 2012). Devoid of internal representations, the emotional states of our "core-Self" (Panksepp, 1998b) are entirely "projected" towards...

Integration and segregation in whole-brain networks: implications for altered states of consciousness

Oxford University Research Archive (ORA) 2018 Louis-David Lord

To survive in an ever-changing environment, the brain must seamlessly integrate a rich stream of incoming information into coherent internal representations that can then be used to efficiently plan for action. The brain must also balance its ability to integrate information with a complementary capacity to segregate information into modules which perform specialized computations in local...

The default network and the combination of cognitive processes that mediate self-generated thought.

Nature Human Behaviour December 4, 2017 Vadim Axelrod, Geraint Rees, Moshe Bar

Self-generated cognitions, such as recalling personal memories or empathizing with others, are ubiquitous and essential for our lives. Such internal mental processing is ascribed to the Default Mode Network, a large network of the human brain, though the underlying neural and cognitive mechanisms remain poorly understood. Here, we tested the hypothesis that our mental experience is mediated by...

The Mechanisms of Psychedelic Visionary Experiences: Hypotheses from Evolutionary Psychology

Frontiers in Neuroscience September 28, 2017 Michael Winkelman 105 citations

Neuropharmacological effects of psychedelics have profound cognitive, emotional, and social effects that inspired the development of cultures and religions worldwide. Findings that psychedelics objectively and reliably produce mystical experiences press the question of the neuropharmacological mechanisms by which these highly significant experiences are produced by exogenous neurotransmitter...