Christopher Timmermann

This study shows serotonergic psychedelics like LSD and DMT delay resting state neurovascular coupling, affecting hemodynamic delays and functional connectivity in brain regions with serotonin receptors.

This study uses multivariate information decomposition to analyze how five psychedelics alter information processing in the human brain, revealing new insights into neural reorganization.

This study introduces vorticity-based metrics to analyze brain dynamics during DMT experiences, finding increased rotational organization and spatial heterogeneity associated with subjective intensity changes.

The paper analyzes neuroimaging studies of consciousness to challenge the idea of an invariant core, showing distributed and context-sensitive brain activity patterns.

The paper quantifies consciousness states using entropy across pharmacological and clinical fMRI data, finding a shared entropic axis spanning from low-entropy anaesthesia to high-entropy psychedelic and schizophrenia states.

This study identifies four wave propagation motifs in the human brain across different states of consciousness and shows how they reconfigure in diminished and psychedelic states.

This study investigates brain changes after a single high-dose psilocybin administration, finding anatomical and functional alterations linked to improved well-being and cognitive flexibility.

This study uses heart rate variability during numadelic VR to identify autonomic indicators of self-transcendent experiences and links them to affective outcomes.

This study investigates how five psychedelic drugs affect local brain synchrony and global functional connectivity using fMRI, finding disrupted local synchrony and enhanced global connectivity across all drugs.

This study investigates the neurophysiological correlates of awe using EEG, finding increased complexity in neural signals during awe experiences, though with limited generalization to other datasets.

This study uses network control theory to show DMT reduces brain control energy, correlates with EEG entropy and subjective experience, and links these effects to serotonin 2a receptor distribution.

This study examines how DMT affects brain oscillation criticality and links these changes to ego-dissolution experiences.

This study identifies brain substates and autonomic correlates during DMT administration, linking hippocampal and medial parietal deactivations to altered consciousness and sympathetic output.

This study examines how classical psychedelics alter brain hierarchy and complexity, finding they reduce hierarchy while increasing neural complexity.

This study shows that DMT alters connectome harmonics, increasing their repertoire entropy and correlating with subjective experience intensity over time.

This paper models the transient brain state changes induced by DMT using a time-dependent whole-brain model and fMRI data, showing heightened reactivity in specific brain regions correlated with serotonin receptor density.

This study examines how external stimuli modulate brain entropy during a psychedelic experience, finding that eye closure enhances entropy changes and that video stimuli disrupt the relationship between brain activity and subjective experience.

This paper uses Bayesian methods to analyze heart rate dynamics during psychedelic experiences, finding increased entropy and variability linked to subjective and neural effects.

HADES framework analyzes spacetime activity patterns in the brain, showing reduced low-frequency harmonic modes during DMT-induced states, indicating changes in functional hierarchy.

This study compares neural dynamics changes in schizophrenia and psychedelic-induced states using M/EEG data, finding distinct patterns in information transfer and Bayesian inference alterations.

This study maps how pharmacological drugs alter brain function by linking neurotransmitter receptor distribution with drug-induced changes in functional MRI connectivity.

This study investigates how DMT alters cortical travelling waves during a resting state, finding reduced backward and increased forward waves, supporting a model of altered precision-weighting of priors.

This study examines the neural and subjective effects of inhaled DMT in natural settings using EEG and psychometric questionnaires, finding changes in brain oscillations and correlations with mystical experiences.

This study examines how IV DMT affects EEG brain activity, finding reduced alpha/beta power and increased signal diversity, with delta/theta activity correlating with peak subjective experience.