Psilocybin-containing mushrooms, commonly known as magic mushrooms, strongly affect mood, cognition, and behavior. Psilocybe azurescens is a species of psilocybin mushrooms that contains the main active compounds psilocybin and psilocin. Psilocybin mushrooms have been used since ancient times to improve the quality of life. However, their adverse effects hav...
Personality disorders (PDs) are characterized by rigid and maladaptive patterns of self- and interpersonal functioning, leading to high clinical burden and limited treatment outcomes. Schema Therapy (ST), an integrative psychotherapy rooted in cognitive-behavioral principles, conceptualizes PDs in terms of Early Maladaptive Schemas (EMS)-pervasive cognitive-...
Introduced in 2014 and revised in 2018, the entropic brain hypothesis has accrued a wealth of supportive evidence. The hypothesis states that- along a dimension of breadth of conscious experience- ‘expansive states’ reliably exhibit increased brain entropy whereas the inverse applies for states of no or reduced consciousness. Examples of expansive states inc...
Humphry Osmond coined the term ‘psychedelic’ in 1956, conjoining ‘psyche’ for ‘soul’ and ‘delic’ from ‘dêlos’ for ‘to manifest’ or ‘illuminate.’ Soul-illumination is an adjective that describes a psychological state or process. However, Osmond’s intention was to use the adjective to name- not just a state- but a category of drug that can induce the subjectiv...
Introduction Mental health disorders, including depression, anxiety, and post-traumatic stress disorder (PTSD), remain a significant global health concern, requiring novel therapeutic approaches. Psilocybin, a psychedelic compound found in certain mushrooms, has shown potential in modulating neuroplasticity, a critical process for cognitive flexibility and m...
The psychedelic psilocybin has gained popularity in recent years as a therapy for treatment-resistant depression and has been reported to reduce symptoms of depression and anxiety. Psilocybin's active metabolite, psilocin, possesses a binding affinity for serotonin receptors as well as for the serotonin transporter (5-HTT). We recently reported that in contr...
Alcohol use disorder (AUD) is a highly prevalent disorder with limited therapeutic options. The central amygdala (CeA) is a critical brain region as dysregulation within the CeA and the corticotropin-releasing factor (CRF) system are associated with AUD pathology. CeA CRF1 receptors regulate alcohol drinking and have served as a therapeutic target in alcohol...
Today’s research highlights the therapeutic potential of the hallucinogen psilocybin in the treatment of pathologies associated with mood, cognitive, and affective dysregulation. These domains of function are regulated by the serotonergic system, which can be influenced by sex hormones, like estrogen and testosterone, and psychedelic compounds including psil...
Psilocybin, an indoleamine alkaloid derived from various fungal species, is the subject of renewed, rigorous investigation for its therapeutic potential in psychiatry. This compound, a prodrug for the active metabolite psilocin, functions primarily as a partial agonist at the serotonin 2A (5-HT2A) receptor. Its administration within a structured psychotherap...
Chronic pain and mood disorders co-occur, exacerbate one another and share neurobiological mechanisms, but whether a single intervention could promptly alleviate both conditions remains unclear. Here, in two chronic pain models, we show that a single dose of psilocybin induces a rapid and sustained reversal of both mechanical allodynia and anxiodepression-li...
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...
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...