Knowledge Tree
brain activity
Also known as: human brain activity
Facts (46)
Sources
Quantum Approaches to Consciousness plato.stanford.edu Nov 30, 2004 4 facts
claimThe application of quantum field theory in the Freeman and Vitiello model serves to explain why classical behavior emerges at the level of brain activity.
claimIt is a subject of controversy whether quantum events in the brain are relevant to the specific aspects of brain activity that correlate with mental activity.
perspectiveThe majority of presentations of the quantum approach to consciousness do not consistently distinguish between mental states and material states, suggesting an underlying assumption of the reducibility of mental activity to brain activity.
claimThe investigation of mental quantum features without focusing on associated brain activity is considered a promising approach for future success in the field of quantum approaches to consciousness.
Quantum Approaches to Consciousness plato.stanford.edu Nov 30, 2004 4 facts
claimThe concept of 'quantum mind without quantum brain' posits that mental states and observables can exhibit features resembling quantum behavior even if the correlated brain activity is entirely classical, provided the partition of neural states is not properly constructed.
referenceSabbadini and Vitiello (2019) provide a review with technical background on the application of quantum field theory to brain activity.
claimQuantum field theory describes the emergence of classical behavior in brain activity by identifying regimes of stable behavior, such as phases and attractors, and the transitions between them.
claimFreeman and Vitiello (2016) proposed a method to explicitly include mental states in their model of brain activity in their final joint paper.
The Hard Problem of Consciousness | Springer Nature Link link.springer.com 4 facts
claimFriedrich Beck and John Eccles proposed that the interaction of mental events with quantum probability amplitudes for exocytosis creates a coherent coupling of individual amplitudes across hundreds of thousands of boutons in a dendron, leading to a variety of modes in brain activity.
claimPhenomenal influence at the quantum level could result in a significant and constant impact on brain activity without being detectable by current measurement methods.
claimEpiphenomenalism posits that consciousness is an epiphenomenon emerging from brain activity that possesses no causal role.
claimPhysicalists often characterize their own phenomenal experiences as meaningless byproducts of brain activity, despite experiencing the same rich qualia as dualists or idealists.
A virtual clinical trial of psychedelics to treat patients with disorders ... eurekalert.org Nov 24, 2025 4 facts
claimIn healthy volunteers, psychedelic drugs like psilocybin and LSD produce intense, consciousness-altering effects that are thought to be linked with increased dynamical complexity of brain activity.
claimThe virtual clinical trial conducted by Alnagger et al. demonstrated that LSD and psilocybin could shift brain activity in patients with disorders of consciousness towards healthier, more flexible, and complex dynamics.
claimThe proposed treatment for disorders of consciousness (DoC) relies on the premise that a short-term increase in the complexity of brain activity in patients could result in improvements in their conscious state.
procedureTo study the dynamics of simulated brain activity, Alnagger et al. observed how an artificial perturbation was integrated into the brain's activity in terms of time and magnitude.
Psychedelics Assessed In New Virtual Clinical Trial - EMJ emjreviews.com Nov 27, 2025 3 facts
claimA virtual clinical trial suggests that psychedelic drugs may boost brain activity in patients who have not fully regained consciousness after a coma.
claimIn patients with disorders of consciousness, the simulated use of LSD and psilocybin shifted brain activity towards more flexible and complex dynamics.
claimIn patients with disorders of consciousness, the complexity of brain activity is reduced, which limits the ability of patients to recover awareness.
Consciousness in Artificial Intelligence? A Framework for Classifying ... arxiv.org Nov 20, 2025 2 facts
referenceThe Neuron Doctrine posits that the activity of action potentials is the only aspect of brain activity necessary to explain cognition and consciousness.
claimCritics of the Neuron Doctrine argue that it underrepresents the complexity of brain activity necessary for consciousness by focusing solely on action potentials.
The Problem of Hard and Easy Problems cambridge.org Mar 31, 2023 2 facts
claimWeiskrantz's natural experiments regarding awareness deficits, such as amnesia, blindsight, prosopagnosia, and aphasia, manipulate brain activity rather than consciousness as the independent variable.
claimAssuming brain lesion patients are comparable to healthy subjects in all respects except for localized loss of brain activity, the lesioning of specific brain areas causes both a loss of awareness and a loss of performance for certain types of tasks.
Quantum Approaches to Consciousness plato.stanford.edu Nov 30, 2004 2 facts
claimHenry Stapp and the team of Friedrich Beck and John Eccles propose that the ontic randomness of quantum events provides a mechanism for mental causation, allowing conscious mental acts to influence brain activity.
claimQuantum brain approaches represent attempts to propose that brain activity correlated with mental processes is governed by quantum physics.
The Mechanisms of Psychedelic Visionary Experiences - Frontiers frontiersin.org Sep 27, 2017 2 facts
referenceJiang et al. (2017) investigated brain activity and functional connectivity associated with hypnosis.
claimProfound alterations of the brain's ordinary routines result in a greater randomization of brain activity, which allows for spontaneous synaptic plasticity that can reshape network connectivity and enhance overall coordination of neural activity.
Consciousness and Cognitive Sciences journal-psychoanalysis.eu 2 facts
claimNew techniques for large-scale analysis of brain activity and neuropsychology have enabled experimental research into complex cognitive correlates like mental imagery and emotions.
claimNoninvasive on-line measurements of brain activity have forced researchers to address methodological questions regarding the validity of subject reports and the nature of verbal reports.
A Synergistic Workspace for Human Consciousness Revealed by ... elifesciences.org 1 fact
referenceThe paper 'Partial entropy decomposition reveals higher-order structures in human brain activity' utilizes partial entropy decomposition to identify higher-order structures within human brain activity.
Psychedelics, Sociality, and Human Evolution frontiersin.org 1 fact
claimChanges in brain activity and connectivity induced by psychedelics lead to a flexible, functionally more connected brain during the psychedelic state.
Fame in the Brain—Global Workspace Theories of Consciousness psychologytoday.com Oct 28, 2023 1 fact
claimIn Global Neuronal Workspace Theory, 'ignition' is the process where a broadcasted signal is amplified, prolonged, and shared with specialized modules, associated with a specific pattern of brain activity measurable by imaging and electrophysiology.
A Virtual Clinical Trial of Psychedelics to Treat Patients With ... advanced.onlinelibrary.wiley.com Nov 20, 2025 1 fact
claimDisorders of consciousness following severe brain injury are characterized by reduced complexity of brain activity and limited treatment options.
An adversarial collaboration to critically evaluate theories of ... biorxiv.org Jun 26, 2023 1 fact
claimIntegrated Information Theory (IIT) and Global Neuronal Workspace Theory (GNWT) are two theories that attempt to explain how subjective experience arises from brain activity.
Non-physicalist Theories of Consciousness cambridge.org Dec 20, 2023 1 fact
claimSome physicalist theories posit that consciousness consists of specific brain activity or structures, such as the feeling of love being equivalent to neural activity involving the transmission of serotonin and oxytocin.
Published Studies — Johns Hopkins Center for Psychedelic and ... hopkinspsychedelic.org 1 fact
referenceA 2025 study published in bioRxiv by Stoliker et al. asserts that psychedelics align brain activity with context.
Episode 2: The Hard Problem of Consciousness – David Chalmers ... futurepointdigital.substack.com Jul 24, 2025 1 fact
claimThe physicalist project is the belief held by some philosophers and scientists that consciousness can be explained by reducing it to brain activity, specifically neurons firing in particular patterns.
Testing Global Neuronal Workspace and Integrated… templetonworldcharity.org 1 fact
claimNeural correlates of consciousness (NCC) are defined as the specific kinds of brain activity that correspond exactly with conscious experiences.
Protocol for testing global neuronal workspace and integrated ... journals.plos.org 1 fact
procedureThe authors of the study are extending the Cogitate framework to rhesus macaques (Macaca mulatta) and mice (Mus musculus) to allow for direct access to individual neuron activity via intracranial electrophysiology and causal manipulation of brain activity using electrical stimulation and optogenetics.
4.5 Consciousness – Cognitive Psychology nmoer.pressbooks.pub 1 fact
accountIn an experiment where participants were asked to freely choose to press a right or left button, brain activity patterns predicted the participants' decisions up to 10 seconds before the participants consciously made the decision.
Unknown source 1 fact
claimNeurobiological theories of consciousness attempt to explain how subjective experience arises from brain activity.
#17 — ”Global Workspace Theory… - Consciousness and the Brain podcasts.apple.com Nov 22, 2021 1 fact
claimConscious perception of a word is associated with longer-lasting and more widespread brain activity throughout the cortex compared to unconscious perception.
The Compatibility of Christianity with Panpsychism, Part 1 theologycommons.gcu.edu Sep 2, 2025 1 fact
claimPhysicalists typically address the problem of consciousness by labeling experience as an illusion, reducing experience to physical phenomena like brain activity, or arguing that non-physical phenomena depend on physical entities.
Altered states of consciousness – Knowledge and References taylorandfrancis.com 1 fact
referenceIn a 2016 study, Jiang et al. used functional MRI (fMRI) to examine brain activity and functional connectivity in 57 individuals grouped by high versus low hypnotizability using the Harvard Group Scale for Hypnotic Susceptibility, with participants undergoing scanning in four states: resting, memory retrieval, and two different hypnotic experiences.
Adversarial testing of global neuronal workspace and ... - Nature nature.com Apr 30, 2025 1 fact
procedureThe study focused on the contents of consciousness, such as category, identity, orientation, and duration, by linking brain activity to subjective phenomenology, departing from the traditional contrastive method that compares the presence and absence of consciousness.
Consciousness as the foundation: New theory addresses nature of ... phys.org Nov 25, 2025 1 fact
referenceMaria Strømme's theoretical framework posits that consciousness is not a byproduct of brain activity, but rather a fundamental field underlying all experience, including matter, space, time, and life itself.