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Emotions and brain function are altered up to one month after a single high dose of psilocybin
by
Sepeda, Nathan D
, Griffiths, Roland R
, Pekar, James J
, Barrett, Frederick S
, Doss, Manoj K
in
Adult
/ Amygdala
/ Amygdala - diagnostic imaging
/ Amygdala - drug effects
/ Amygdala - physiopathology
/ Anxieties
/ Anxiety
/ Brain Mapping
/ Brain research
/ Cerebral Cortex - diagnostic imaging
/ Cerebral Cortex - drug effects
/ Cerebral Cortex - physiopathology
/ Drug dosages
/ Drug use
/ Drug withdrawal
/ Emotions
/ Emotions - drug effects
/ Emotions - physiology
/ Female
/ Follow-Up Studies
/ Hallucinogens - adverse effects
/ Healthy Volunteers
/ Humans
/ Hypotheses
/ Magnetic Resonance Imaging
/ Male
/ Mood
/ Nerve Net - diagnostic imaging
/ Nerve Net - drug effects
/ Nerve Net - physiopathology
/ Neuronal Plasticity - drug effects
/ Neurosciences
/ Pathophysiology
/ Pilot Projects
/ Prefrontal cortex
/ Psilocybin - adverse effects
/ Psilocybine
/ Therapeutic applications
/ Young Adult
2020
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Emotions and brain function are altered up to one month after a single high dose of psilocybin
by
Sepeda, Nathan D
, Griffiths, Roland R
, Pekar, James J
, Barrett, Frederick S
, Doss, Manoj K
in
Adult
/ Amygdala
/ Amygdala - diagnostic imaging
/ Amygdala - drug effects
/ Amygdala - physiopathology
/ Anxieties
/ Anxiety
/ Brain Mapping
/ Brain research
/ Cerebral Cortex - diagnostic imaging
/ Cerebral Cortex - drug effects
/ Cerebral Cortex - physiopathology
/ Drug dosages
/ Drug use
/ Drug withdrawal
/ Emotions
/ Emotions - drug effects
/ Emotions - physiology
/ Female
/ Follow-Up Studies
/ Hallucinogens - adverse effects
/ Healthy Volunteers
/ Humans
/ Hypotheses
/ Magnetic Resonance Imaging
/ Male
/ Mood
/ Nerve Net - diagnostic imaging
/ Nerve Net - drug effects
/ Nerve Net - physiopathology
/ Neuronal Plasticity - drug effects
/ Neurosciences
/ Pathophysiology
/ Pilot Projects
/ Prefrontal cortex
/ Psilocybin - adverse effects
/ Psilocybine
/ Therapeutic applications
/ Young Adult
2020
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Emotions and brain function are altered up to one month after a single high dose of psilocybin
by
Sepeda, Nathan D
, Griffiths, Roland R
, Pekar, James J
, Barrett, Frederick S
, Doss, Manoj K
in
Adult
/ Amygdala
/ Amygdala - diagnostic imaging
/ Amygdala - drug effects
/ Amygdala - physiopathology
/ Anxieties
/ Anxiety
/ Brain Mapping
/ Brain research
/ Cerebral Cortex - diagnostic imaging
/ Cerebral Cortex - drug effects
/ Cerebral Cortex - physiopathology
/ Drug dosages
/ Drug use
/ Drug withdrawal
/ Emotions
/ Emotions - drug effects
/ Emotions - physiology
/ Female
/ Follow-Up Studies
/ Hallucinogens - adverse effects
/ Healthy Volunteers
/ Humans
/ Hypotheses
/ Magnetic Resonance Imaging
/ Male
/ Mood
/ Nerve Net - diagnostic imaging
/ Nerve Net - drug effects
/ Nerve Net - physiopathology
/ Neuronal Plasticity - drug effects
/ Neurosciences
/ Pathophysiology
/ Pilot Projects
/ Prefrontal cortex
/ Psilocybin - adverse effects
/ Psilocybine
/ Therapeutic applications
/ Young Adult
2020
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Emotions and brain function are altered up to one month after a single high dose of psilocybin
Journal Article
Emotions and brain function are altered up to one month after a single high dose of psilocybin
2020
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Overview
Psilocybin is a classic psychedelic compound that may have efficacy for the treatment of mood and substance use disorders. Acute psilocybin effects include reduced negative mood, increased positive mood, and reduced amygdala response to negative affective stimuli. However, no study has investigated the long-term, enduring impact of psilocybin on negative affect and associated brain function. Twelve healthy volunteers (7F/5M) completed an open-label pilot study including assessments 1-day before, 1-week after, and 1-month after receiving a 25 mg/70 kg dose of psilocybin to test the hypothesis that psilocybin administration leads to enduring changes in affect and neural correlates of affect. One-week post-psilocybin, negative affect and amygdala response to facial affect stimuli were reduced, whereas positive affect and dorsal lateral prefrontal and medial orbitofrontal cortex responses to emotionally-conflicting stimuli were increased. One-month post-psilocybin, negative affective and amygdala response to facial affect stimuli returned to baseline levels while positive affect remained elevated, and trait anxiety was reduced. Finally, the number of significant resting-state functional connections across the brain increased from baseline to 1-week and 1-month post-psilocybin. These preliminary findings suggest that psilocybin may increase emotional and brain plasticity, and the reported findings support the hypothesis that negative affect may be a therapeutic target for psilocybin.
Publisher
Nature Publishing Group,Nature Publishing Group UK
Subject
/ Amygdala
/ Amygdala - diagnostic imaging
/ Anxiety
/ Cerebral Cortex - diagnostic imaging
/ Cerebral Cortex - drug effects
/ Cerebral Cortex - physiopathology
/ Drug use
/ Emotions
/ Female
/ Hallucinogens - adverse effects
/ Humans
/ Male
/ Mood
/ Nerve Net - diagnostic imaging
/ Neuronal Plasticity - drug effects
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