International Journal of Neuroscience
August 2017
Fangfang Xie, Wu Xing, Xiaoyi Wang et al.
A disturbance in the level of consciousness is a classical clinical sign of several seizure types. Recent studies have shown that altered states of consciousness in seizures are associated with structural and functional changes of several brain regions. Prominent among these are the thalamus, the brain stem and the default mode network, which is part of the consciousness system. Our study used...
Human Brain Mapping
July 1, 2017
Karolina Finc, Kamil Bonna, Monika Lewandowska et al.
Network neuroscience provides tools that can easily be used to verify main assumptions of the global workspace theory (GWT), such as the existence of highly segregated information processing during effortless tasks performance, engagement of multiple distributed networks during effortful tasks and the critical role of long-range connections in workspace formation. A number of studies support...
Schizophrenia Bulletin
March 14, 2017
Georg Northoff, Paola Magioncalda, Matteo Martino et al.
95 citations
Time is an essential feature in bipolar disorder (BP). Manic and depressed BP patients perceive the speed of time as either too fast or too slow. The present article combines theoretical and empirical approaches to integrate phenomenological, psychological, and neuroscientific accounts of abnormal time perception in BP. Phenomenology distinguishes between perception of inner time, ie,...
Neuroimage
February 20, 2017
Abhrajeet V Roy, Keith W Jamison, Sheng He et al.
Binocular rivalry is a phenomenon in which perception spontaneously shifts between two different images that are dichoptically presented to the viewer. By elucidating the cortical networks responsible for these stochastic fluctuations in perception, we can potentially learn much about the neural correlates of visual awareness. We obtained concurrent EEG-fMRI data for a group of 20 healthy human...
Neuroscience & Biobehavioral Reviews
December 29, 2016
Michiel van Elk, André Aleman
We present the theory of predictive processing as a unifying framework to account for the neurocognitive basis of religion and spirituality. Our model is substantiated by discussing four different brain mechanisms that play a key role in religion and spirituality: temporal brain areas are associated with religious visions and ecstatic experiences; multisensory brain areas and the default mode...
Neuroscience & Biobehavioral Reviews
December 2016
Rafael G. Dos Santos, Flávia L. Osório, José Alexandre S. Crippa et al.
Serotonergic hallucinogens produce alterations of perceptions, mood, and cognition, and have anxiolytic, antidepressant, and antiaddictive properties. These drugs act as agonists of frontocortical 5-HT2A receptors, but the neural basis of their effects are not well understood. Thus, we conducted a systematic review of neuroimaging studies analyzing the effects of serotonergic hallucinogens in...
Biological Psychology
September 1, 2016
J Lutz, Annette B Brühl, Hanne Scheerer et al.
Mindful self-awareness is central to mindfulness meditation and plays a key role in its salutary effects. It has been related to decreased activation in cortical midline structures (CMS) and amygdala, and increased activation in somatosensory regions. However, findings in untrained individuals are contradictory, and scarce in experienced meditators. Using fMRI, we investigated experienced...
Journal of Psychopharmacology
June 11, 2016
Rafael G. Dos Santos, Fermanda M Balthazar, José Carlos Bouso et al.
126 citations
Rationale: In recent decades, the use of ayahuasca (AYA) – a β-carboline- and dimethyltryptamine-rich hallucinogenic botanical preparation traditionally used by Northwestern Amazonian tribes for ritual and therapeutic purposes – has spread from South America to Europe and the USA, raising concerns about its possible toxicity and hopes of its therapeutic potential. Thus, it is important to...
Schizophrenia Bulletin
June 8, 2016
Ben Alderson-Day, Kelly Diederen, Charles Fernyhough et al.
134 citations
In recent years, there has been increasing interest in the potential for alterations to the brain's resting-state networks (RSNs) to explain various kinds of psychopathology. RSNs provide an intriguing new explanatory framework for hallucinations, which can occur in different modalities and population groups, but which remain poorly understood. This collaboration from the International...
Neuropsychologia
January 21, 2016
Zirui Huang, Natsuho Obara, Henry Davis et al.
144 citations
Recent studies have demonstrated an overlap between the neural substrate of resting-state activity and self-related processing in the cortical midline structures (CMS). However, the neural and psychological mechanisms mediating this so-called "rest-self overlap" remain unclear. To investigate the neural mechanisms, we estimated the temporal structure of spontaneous/resting-state activity, e.g....