We quantify cellular- and circuit-resolution neural network dynamics following therapeutically relevant doses of the psychedelic psilocybin. Using chronically implanted Neuropixels probes, we recorded local field potentials (LFP) alongside action potentials from hundreds of neurons spanning infralimbic, prelimbic and cingulate subregions of the medial prefro...
Neurodegenerative diseases are marked by progressive neuronal loss, inflammation, and impaired plasticity. Although existing treatments provide limited protection for the brain or ability to slow disease progression, emerging research highlights the gut-brain axis and psychedelics as promising new areas for therapeutic development. The gut microbiome, a meta...
Treatment resistant depression (TRD) is frequently encountered in clinical practice. The lack of response of the condition to conventional medications and augmentation strategies has spawned the search for novel treatment approaches. Psychedelic medications used in conjunction with intensive psychotherapy, so-called psychedelic-assisted psychotherapy (PAP), ...
Psilocybin, a compound found in Psilocybe mushrooms, is emerging as a promising treatment for neurodegenerative and psychiatric disorders, including major depressive disorder. Its potential therapeutic effects stem from promoting neuroprotection, neurogenesis, and neuroplasticity, key factors in brain health. Psilocybin could help combat mild neurodegenerati...
Use of selective serotonin reuptake inhibitor (SSRI) antidepressants has been associated with reduced intensity of emotional experience. Conversely, some research has shown that use of psilocybin in patients with depression leads to an increase in responsiveness to emotional face stimuli, suggesting that the psychedelic generates a transient elevation in moo...
This viewpoint reconceptualizes mysticism and fundamentalism as brain network disorders, with psychedelics like psilocybin, lysergic acid diethylamide, and N,N-dimethyltryptamine offering potential to modulate these states. By disrupting rigid neural patterns, psychedelics may foster cognitive flexibility, challenge inflexible belief systems, and offer thera...
Background and HypothesisVisual hallucinations (VH) are a core symptom of both Lewy body diseases (LBDs; e.g., Parkinson’s disease and dementia with Lewy bodies) and serotonergic psychedelics (SPs; e.g., psilocybin and mescaline). While these classes of VH differ in etiology, shared pathways are suggested by overlapping phenomenology and neural mechanisms. T...
Background and Hypothesis Visual hallucinations (VH) are a core symptom of both Lewy body diseases (LBDs; e.g., Parkinson’s disease and dementia with Lewy bodies) and serotonergic psychedelics (SPs; e.g., psilocybin and mescaline). While these classes of VH differ in etiology, shared pathways are suggested by overlapping phenomenology and neural mechanisms. ...
Psychedelics have been studied since the 1950s as a potential treatment for alcohol use disorder (AUD), with over a dozen clinical trials of lysergic acid diethylamide (LSD), and several contemporary trials of psilocybin and ayahuasca for this indication. Herein, we characterize foundational studies from the 1950s to the present, with emphasis on key design ...
Introduction: Many Veterans who experienced blast-related traumatic brain injuries (TBIs) in Iraq and Afghanistan currently suffer from chronic cognitive and mental health problems that include depression and post-traumatic stress disorder (PTSD). Male rats exposed to repetitive low-level blast develop chronic cognitive and PTSD-related behavioral traits tha...
Psychedelics, such as LSD and psilocybin, disrupt entrenched cognitive patterns by facilitating novel insights and new associations. This paper considers how AI can potentially mimic these psychedelic-induced cognitive disruptions to augment and enhance human creativity. Psychedelics likely enhance creativity by altering brain function, notably the activity ...
Dr. Erin E. Mauney serves as Assistant Professor of Pediatrics (Gastroenterology) at Tufts University while maintaining a research appointment at Massachusetts General Hospital. With dual board certification, including obesity medicine, she integrates clinical expertise with innovative research at the intersection of gut-brain disorders and psychedelic medic...
Introduction The aesthetic qualities of psychedelic experiences have long been documented, but their specific contribution to therapeutic outcomes remains understudied. Aesthetic experiences may facilitate emotional breakthroughs and cognitive shifts, potentially playing a crucial role in the lasting psychological benefits observed following psychedelic use....
In a thought-provoking Genomic Press interview, Dr. Michael Wheeler emerges as a brilliant scientific innovator at the intersection of neuroscience and immunology. As an Assistant Professor at Harvard Medical School and an investigator at Brigham and Women's Hospital, Wheeler's groundbreaking research explores how brain-immune communication shapes our behavi...
Psilocybin therapy (PT) is emerging as an effective intervention for Major Depressive Disorder (MDD), offering comparable efficacy to conventional treatments like selective serotonin reuptake inhibitors (SSRIs). Music, an emotionally evocative stimulus, provides a valuable tool to explore changes in hedonic and predictive processing mechanisms via expectancy...
OBJECTIVE: Psychedelics are able to trigger highly intense and profound alterations in self-consciousness, perception, affective, and cognitive processes. Indeed, recent studies show that ketamine and psilocybin could be used as fast-acting antidepressants. However, the molecular and neurochemical mechanisms of these psychedelics and their actions at the lev...
ABSTRACT PsiConnect is a large-scale neuroimaging study designed to investigate the neural and subjective effects of psilocybin using multimodal neuroimaging. It combines functional, structural, and diffusion-weighted MRI with EEG to examine brain activity in 62 participants before and after a 19 mg dose of psilocybin. The design includes resting-state scans...
Background and Hypothesis Visual hallucinations (VH) are a core symptom of both Lewy body diseases (LBDs; e.g., Parkinson’s disease and dementia with Lewy bodies) and serotonergic psychedelics (SPs; e.g., psilocybin and mescaline). While these classes of VH differ in etiology, shared pathways are suggested by overlapping phenomenology and neural mechanisms. ...
