4.7 Review

Therapeutic mechanisms of psychedelics and entactogens

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Lysergic acid diethylamide (LSD) promotes social behavior through mTORC1 in the excitatory neurotransmission

Danilo De Gregorio et al.

Summary: Clinical studies have shown that LSD can enhance empathy and social behavior in humans. This study in male mice found that LSD promotes social behavior by potentiating glutamatergic neurotransmission in the medial prefrontal cortex through the 5-HT2A/AMPA receptors and mTOR signaling. The results suggest that activating these pathways with psychedelic drugs could be explored for treating mental disorders characterized by social behavior impairments.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2021)

Article Multidisciplinary Sciences

Positive expectations predict improved mental-health outcomes linked to psychedelic microdosing

L. S. Kaertner et al.

Summary: The study found that psychedelic microdosing may enhance psychological well-being, emotional stability, and reduce anxiety and depressive symptoms, but positive expectancy also plays a significant role in predicting positive outcomes.

SCIENTIFIC REPORTS (2021)

Letter Biochemistry & Molecular Biology

Caution at psychiatry's psychedelic frontier

Matthew J. Burke et al.

NATURE MEDICINE (2021)

Article Clinical Neurology

First study of safety and tolerability of 3,4-methylenedioxymethamphetamine-assisted psychotherapy in patients with alcohol use disorder

Ben Sessa et al.

Summary: The study is the first exploration of the feasibility and efficacy of MDMA therapy in patients with alcohol use disorder. The results show that MDMA treatment is safe and well tolerated in patients with AUD, with improvement in psychosocial functioning and significant reduction in drinking behavior.

JOURNAL OF PSYCHOPHARMACOLOGY (2021)

Article Neurosciences

A placebo-controlled study of the effects of ayahuasca, set and setting on mental health of participants in ayahuasca group retreats

M. Uthaug et al.

Summary: The study suggests that Ayahuasca may improve mental health, but it could also be influenced by non-pharmacological factors, emphasizing the importance of further research to understand the underlying mechanisms of its therapeutic effects.

PSYCHOPHARMACOLOGY (2021)

Article Cell Biology

Prolonged epigenomic and synaptic plasticity alterations following single exposure to a psychedelic in mice

Mario de la Fuente Revenga et al.

Summary: Clinical evidence shows that rapid and sustained antidepressant effects can be achieved with a single exposure to psychedelics. The study found that a single dose of the psychedelic DOI has fast-acting effects on the frontal cortex dendritic spine structure and accelerates fear extinction through the 5-HT2A receptor. Furthermore, DOI induces changes in chromatin organization, particularly at enhancer regions of genes involved in synaptic assembly, which overlap with genetic loci associated with schizophrenia, depression, and attention deficit hyperactivity disorder.

CELL REPORTS (2021)

Article Psychiatry

Synthesizing the Evidence for Ketamine and Esketamine in Treatment-Resistant Depression: An International Expert Opinion on the Available Evidence and Implementation

Roger S. McIntyre et al.

Summary: Replicated international studies have highlighted the human and societal costs of major depressive disorder, with monoamine-based antidepressants proving effective but many patients failing to fully recover. Ketamine and esketamine offer novel pharmacological treatments for treatment-resistant depression, but questions remain about their safety and effectiveness. International experts provide guidance on the use of these agents, while discussing areas of consensus and future research directions.

AMERICAN JOURNAL OF PSYCHIATRY (2021)

Article Neurosciences

Oxytocin, Neural Plasticity, and Social Behavior

Robert C. Froemke et al.

Annual Review of Neuroscience (2021)

Article Biochemistry & Molecular Biology

Psychedelic-inspired drug discovery using an engineered biosensor

Chunyang Dong et al.

Summary: The study introduces psychLight, a genetically encoded fluorescent sensor based on the structure of 5-HT2AR, which can detect behaviorally relevant serotonin release and predict the effects of different 5-HT2AR ligands. This new technology identified a non-hallucinogenic psychedelic analog with rapid-onset and long-lasting antidepressant-like effects.
Article Psychiatry

Psilocybin therapy increases cognitive and neural flexibility in patients with major depressive disorder

Manoj K. Doss et al.

Summary: The study investigated the enduring effects of psilocybin therapy on cognitive and neural flexibility, finding that cognitive flexibility improved post-treatment and some neural dynamics changes were associated with changes in cognitive flexibility one week after treatment.

TRANSLATIONAL PSYCHIATRY (2021)

Article Psychiatry

Psilocin, LSD, mescaline, and DOB all induce broadband desynchronization of EEG and disconnection in rats with robust translational validity

Cestmir Vejmola et al.

Summary: This study evaluated the effects of various psychedelics on EEG activity in rats, showing a decrease and desynchronization in brain activity. Different psychedelics induced subtle spatial patterns in EEG activity.

TRANSLATIONAL PSYCHIATRY (2021)

Review Psychiatry

Psychedelics and Other Psychoplastogens for Treating Mental Illness

Maxemiliano V. Vargas et al.

Summary: Psychedelics offer new hope for treating brain disorders due to their sustained therapeutic effects and broad potential, but face challenges in clinical scalability. Research on psychoplastogens provides insight into neural plasticity and offers a new paradigm for addressing the underlying pathophysiology of mental illness. Effectively deploying psychoplastogenic medicines at scale will be a key consideration for future development in the field.

FRONTIERS IN PSYCHIATRY (2021)

Article Multidisciplinary Sciences

Psilocybin targets a common molecular mechanism for cognitive impairment and increased craving in alcoholism

Marcus W. Meinhardt et al.

Summary: The study identified a common molecular pathological mechanism for both executive dysfunction and alcohol craving in alcohol-dependent patients, and proposed a personalized mGluR2 mechanism-based intervention strategy for medication development.

SCIENCE ADVANCES (2021)

Article Biochemistry & Molecular Biology

MDMA-assisted therapy for severe PTSD: a randomized, double-blind, placebo-controlled phase 3 study

Jennifer M. Mitchell et al.

Summary: The results demonstrate that MDMA-assisted therapy is safe and effective in treating severe post-traumatic stress disorder. Compared with placebo, MDMA significantly reduces CAPS-5 scores and improves functional impairment.

NATURE MEDICINE (2021)

Article Medicine, General & Internal

Trial of Psilocybin versus Escitalopram for Depression

Robin Carhart-Harris et al.

Summary: The study compared the efficacy of psilocybin and escitalopram in treating patients with major depressive disorder. While there was no significant difference in antidepressant effects between the two drugs at week 6, secondary outcomes generally favored psilocybin over escitalopram, though these results were not adjusted for multiple comparisons. Larger and longer trials are needed to further compare psilocybin with established antidepressants.

NEW ENGLAND JOURNAL OF MEDICINE (2021)

Article Multidisciplinary Sciences

Harnessing psilocybin: antidepressant-like behavioral and synaptic actions of psilocybin are independent of 5-HT2R activation in mice

Natalie Hesselgrave et al.

Summary: Psilocybin has shown promising rapid and persistent antidepressant effects in mice, possibly through enhancing excitatory synapses in the hippocampus, independent of 5-HT2A receptor activation. Further research is needed to explore the potential combination of psychedelic compounds and 5-HT2AR antagonists for clinical utility in human depression.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2021)

Article Biology

Attenuated dopamine signaling after aversive learning is restored by ketamine to rescue escape actions

Mingzheng Wu et al.

Summary: This study investigates the impact of stress and aversive learning on dopaminergic neuron activity and signaling, as well as the mechanism of ketamine in restoring escape behavior. Through chemogenetic and neuronal activity correlation studies, it reveals the correlation between neuromodulatory dynamics in the mPFC-VTA circuit and the effects of ketamine.

ELIFE (2021)

Article Psychiatry

Effects of Psilocybin-Assisted Therapy on Major Depressive Disorder A Randomized Clinical Trial

Alan K. Davis et al.

Summary: The study showed that psilocybin therapy with psychological support is effective in treating MDD, building on previous findings in patients with cancer and depression, as well as in a nonrandomized study in patients with treatment-resistant depression.

JAMA PSYCHIATRY (2021)

Article Biochemistry & Molecular Biology

An analog of psychedelics restores functional neural circuits disrupted by unpredictable stress

Ju Lu et al.

Summary: The study shows that TBG can reduce anxiety levels and rescue deficits in sensory processing and cognitive flexibility in mice under stress. Furthermore, TBG promotes the regrowth of excitatory neuron dendritic spines and enhances neural activity in the somatosensory cortex.

MOLECULAR PSYCHIATRY (2021)

Article Neurosciences

N,N-Dimethyltryptamine attenuates spreading depolarization and restrains neurodegeneration by sigma-1 receptor activation in the ischemic rat brain

Irisz Szabo et al.

Summary: The study suggests that DMT may serve as an adjuvant pharmacological therapy in the management of acute cerebral ischemia, by mitigating spreading depolarizations (SDs) and promoting neuronal survival, reducing the number of apoptotic and ferroptotic cells.

NEUROPHARMACOLOGY (2021)

Article Neurosciences

Systemic enhancement of serotonin signaling reverses social deficits in multiple mouse models for ASD

Jessica J. Walsh et al.

Summary: Autism spectrum disorder (ASD) is a heterogeneous neurodevelopmental disorder caused by various genetic and environmental factors, characterized by social interaction impairments. Research has shown that enhancing 5-HT activity can reverse social deficits in ASD mouse models, while MDMA and a 5-HT1b receptor agonist are effective in rescuing sociability deficits in multiple ASD mouse models.

NEUROPSYCHOPHARMACOLOGY (2021)

Article Multidisciplinary Sciences

Selective filtering of excitatory inputs to nucleus accumbens by dopamine and serotonin

Daniel J. Christoffel et al.

Summary: The study reveals that dopamine and serotonin modulate excitatory synaptic transmission in the nucleus accumbens in input-specific ways, influencing motivated behaviors differently. Endogenous release of DA and 5-HT, as well as optogenetic inhibition, alter the behavioral effects of drugs in distinct manners.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2021)

Article Multidisciplinary Sciences

Synaptic mechanism underlying serotonin modulation of transition to cocaine addiction

Yue Li et al.

Summary: This study found that cocaine use enhances compulsive behavior by affecting serotonin levels, while this effect can be reversed by increasing serotonin levels. The presynaptic depression induced by 5-HT via 5-HT1B receptors plays a role in the bidirectional effect on behavior.

SCIENCE (2021)

Review Pharmacology & Pharmacy

Neuroplasticity as a convergent mechanism of ketamine and classical psychedelics

Lily R. Aleksandrova et al.

Summary: The emerging therapeutic efficacy of ketamine and classical psychedelics for depression has sparked considerable interest in the mechanisms underlying neuroplasticity. Preclinical and clinical evidence suggests that these drugs induce synaptic, structural, and functional changes, particularly in pyramidal neurons in the prefrontal cortex, resulting in adaptive rewiring of pathological neurocircuitry.

TRENDS IN PHARMACOLOGICAL SCIENCES (2021)

Review Pharmacology & Pharmacy

Blinding and expectancy confounds in psychedelic randomized controlled trials

Suresh D. Muthukumaraswamy et al.

Summary: This study reviewed previous literature on expectancy effects and blinding in psychedelic RCTs and found that these trials might be influenced by de-blinding and expectancy. Current psychedelic RCTs generally do not report pre-trial expectancy or the success rate of blinding procedures. The authors suggest caution in interpreting effect size estimates from existing psychedelic RCTs due to potential confounds related to de-blinding and expectancy.

EXPERT REVIEW OF CLINICAL PHARMACOLOGY (2021)

Editorial Material Psychiatry

New Frontiers or a Bursting Bubble? Psychedelic Therapy Beyond the Dichotomy

Tehseen Noorani et al.

FRONTIERS IN PSYCHIATRY (2021)

Article Chemistry, Medicinal

Transient Stimulation with Psychoplastogens Is Sufficient to Initiate Neuronal Growth

Calvin Ly et al.

Summary: Cortical neuron atrophy is a hallmark of depression, and psychoplastogens like ketamine and LSD have been shown to promote sustained growth of cortical neurons after short periods of stimulation. These psychoplastogens induce cortical neuron growth through distinct phases, with early TrkB activation and later sustained mTOR and AMPA receptor activation being crucial. It is suggested that rapidly excreted psychoplastogens may have unique advantages as neurotherapeutics compared to compounds like ketamine and LSD.

ACS PHARMACOLOGY & TRANSLATIONAL SCIENCE (2021)

Article Chemistry, Medicinal

The Subjective Effects of Psychedelics May Not Be Necessary for Their Enduring Therapeutic Effects

David E. Olson

Summary: Psychedelics have shown promise for treating neuropsychiatric disorders due to their ability to promote neural plasticity and produce rapid and sustained therapeutic effects, but evidence suggests that the subjective effects induced by these drugs may not be necessary for long-lasting changes in mood and behavior. Understanding the role of subjective effects in the therapeutic mechanisms of psychedelics will have important implications for basic neuroscience and patient access to future medicines developed from psychedelic research.

ACS PHARMACOLOGY & TRANSLATIONAL SCIENCE (2021)

Article Chemistry, Medicinal

The Subjective Effects of Psychedelics Are Necessary for Their Enduring Therapeutic Effects

David B. Yaden et al.

Summary: The subjective effects of psychedelics are crucial for their lasting benefits, accounting for the majority of their therapeutic outcomes.

ACS PHARMACOLOGY & TRANSLATIONAL SCIENCE (2021)

Article Behavioral Sciences

Non-pharmacological factors that determine drug use and addiction

Serge H. Ahmed et al.

NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS (2020)

Article Neurosciences

Classical conditioning of antidepressant placebo effects in mice

Samuel R. Krimmel et al.

PSYCHOPHARMACOLOGY (2020)

Article Neurosciences

Prefrontal Regulation of Punished Ethanol Self-administration

Lindsay R. Halladay et al.

BIOLOGICAL PSYCHIATRY (2020)

Review Psychiatry

Psychedelics and Psychedelic-Assisted Psychotherapy

Collin M. Reiff et al.

AMERICAN JOURNAL OF PSYCHIATRY (2020)

Article Neurosciences

Revisiting the Stress Concept: Implications for Affective Disorders

Bruce S. McEwen et al.

JOURNAL OF NEUROSCIENCE (2020)

Article Multidisciplinary Sciences

Transformative experience and social connectedness mediate the mood-enhancing effects of psychedelic use in naturalistic settings

Matthias Forstmann et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2020)

Article Neurosciences

Tripping on nothing: placebo psychedelics and contextual factors

Jay A. Olson et al.

PSYCHOPHARMACOLOGY (2020)

Article Neurosciences

Psilocybin and LSD have no long-lasting effects in an animal model of alcohol relapse

Marcus W. Meinhardt et al.

NEUROPSYCHOPHARMACOLOGY (2020)

Article Neurosciences

Sensitization to the prosocial effects of 3,4-methylenedioxymethamphetamine (MDMA)

Daniel W. Curry et al.

NEUROPHARMACOLOGY (2019)

Article Neurosciences

Psilocybin lacks antidepressant-like effect in the Flinders Sensitive Line rat

Oskar Jefsen et al.

ACTA NEUROPSYCHIATRICA (2019)

Article Multidisciplinary Sciences

Oxytocin-dependent reopening of a social reward learning critical period with MDMA

Romain Nardou et al.

NATURE (2019)

Review Neurosciences

The critical importance of basic animal research for neuropsychiatric disorders

Tracy L. Bale et al.

NEUROPSYCHOPHARMACOLOGY (2019)

Review Pharmacology & Pharmacy

REBUS and the Anarchic Brain: Toward a Unified Model of the Brain Action of Psychedelics

R. L. Carhart-Harris et al.

PHARMACOLOGICAL REVIEWS (2019)

Article Multidisciplinary Sciences

Stress-sensitive antidepressant-like effects of ketamine in the mouse forced swim test

Paul J. Fitzgerald et al.

PLOS ONE (2019)

Editorial Material Psychiatry

Disruptive Psychopharmacology

Boris D. Heifets et al.

JAMA PSYCHIATRY (2019)

Article Multidisciplinary Sciences

A cortical-brainstem circuit predicts and governs compulsive alcohol drinking

Cody A. Siciliano et al.

SCIENCE (2019)

Review Behavioral Sciences

Rodent ketamine depression-related research: Finding patterns in a literature of variability

Andrew J. Polis et al.

BEHAVIOURAL BRAIN RESEARCH (2019)

Article Cell Biology

Distinct neural mechanisms for the prosocial and rewarding properties of MDMA

Boris D. Heifets et al.

SCIENCE TRANSLATIONAL MEDICINE (2019)

Article Multidisciplinary Sciences

Sustained rescue of prefrontal circuit dysfunction by antidepressant-induced spine formation

R. N. Moda-Sava et al.

SCIENCE (2019)

Review Neurosciences

Why MDMA therapy for alcohol use disorder? And why now?

Ben Sessa

NEUROPHARMACOLOGY (2018)

Review Neurosciences

(+/-)-MDMA and its enantiomers: potential therapeutic advantages of R(-)-MDMA

Elizabeth G. Pitts et al.

PSYCHOPHARMACOLOGY (2018)

Review Neurosciences

Progress and promise for the MDMA drug development program

Allison A. Feduccia et al.

PSYCHOPHARMACOLOGY (2018)

Editorial Material Neurosciences

Psychedelics and connectedness

R. L. Carhart-Harris et al.

PSYCHOPHARMACOLOGY (2018)

Review Biochemistry & Molecular Biology

Dark Classics in Chemical Neuroscience: 3,4-Methylenedioxymethamphetamine

Lee E. Dunlap et al.

ACS CHEMICAL NEUROSCIENCE (2018)

Article Biochemistry & Molecular Biology

Effects of N,N-Dimethyltryptamine on Rat Behaviors Relevant to Anxiety and Depression

Lindsay P. Cameron et al.

ACS CHEMICAL NEUROSCIENCE (2018)

Article Clinical Neurology

Psychedelics and the essential importance of context

Robin L. Carhart-Harris et al.

JOURNAL OF PSYCHOPHARMACOLOGY (2018)

Article Cell Biology

Psychedelics Promote Structural and Functional Neural Plasticity

Calvin Ly et al.

CELL REPORTS (2018)

Article Psychiatry

Fear extinction requires infralimbic cortex projections to the basolateral amygdala

Daniel W. Bloodgood et al.

TRANSLATIONAL PSYCHIATRY (2018)

Article Multidisciplinary Sciences

5-HT release in nucleus accumbens rescues social deficits in mouse autism model

Jessica J. Walsh et al.

NATURE (2018)

Article Psychology, Clinical

Long-term follow-up of psilocybin-facilitated smoking cessation

Matthew W. Johnson et al.

AMERICAN JOURNAL OF DRUG AND ALCOHOL ABUSE (2017)

Editorial Material Biochemistry & Molecular Biology

MDMA as a Probe and Treatment for Social Behaviors

Boris D. Heifets et al.

Review Psychology, Clinical

CRITICAL ANALYSIS OF THE CURRENT TREATMENT GUIDELINES FOR COMPLEX PTSD IN ADULTS

Ad de Jongh et al.

DEPRESSION AND ANXIETY (2016)

Article Behavioral Sciences

MDMA ('Ecstasy'), oxytocin and vasopressin modulate social preference in rats: A role for handling and oxytocin receptors

Linnet Ramos et al.

PHARMACOLOGY BIOCHEMISTRY AND BEHAVIOR (2016)

Review Psychiatry

Novel psychopharmacological therapies for psychiatric disorders: psilocybin and MDMA

Michael C. Mithoefer et al.

LANCET PSYCHIATRY (2016)

Article Clinical Neurology

Psilocybin-assisted treatment for alcohol dependence: A proof-of-concept study

Michael P. Bogenschutz et al.

JOURNAL OF PSYCHOPHARMACOLOGY (2015)

Article Multidisciplinary Sciences

Basomedial amygdala mediates top-down control of anxiety and fear

Avishek Adhikari et al.

NATURE (2015)

Review Behavioral Sciences

The prosocial effects of 3,4-methylenedioxymethamphetamine (MDMA): Controlled studies in humans and laboratory animals

Philip Kamilar-Britt et al.

NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS (2015)

Article Multidisciplinary Sciences

Optogenetic stimulation of infralimbic PFC reproduces ketamine's rapid and sustained antidepressant actions

Manabu Fuchikami et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2015)

Article Psychiatry

3,4-Methylenedioxymethamphetamine facilitates fear extinction learning

M. B. Young et al.

TRANSLATIONAL PSYCHIATRY (2015)

Article Clinical Neurology

The natural hallucinogen 5-MeO-DMT, component of Ayahuasca, disrupts cortical function in rats: reversal by antipsychotic drugs

Maurizio S. Riga et al.

INTERNATIONAL JOURNAL OF NEUROPSYCHOPHARMACOLOGY (2014)

Article Clinical Neurology

Pilot study of the 5-HT2AR agonist psilocybin in the treatment of tobacco addiction

Matthew W. Johnson et al.

JOURNAL OF PSYCHOPHARMACOLOGY (2014)

Article Clinical Neurology

Differential effects of MDMA and methylphenidate on social cognition

Yasmin Schmid et al.

JOURNAL OF PSYCHOPHARMACOLOGY (2014)

Review Neurosciences

Improving and Accelerating Drug Development for Nervous System Disorders

Diana E. Pankevich et al.

NEURON (2014)

Editorial Material Neurosciences

Revitalizing Psychiatric Therapeutics

Steven E. Hyman

NEUROPSYCHOPHARMACOLOGY (2014)

Article Neurosciences

MDMA enhances emotional empathy and prosocial behavior

Cedric M. Hysek et al.

SOCIAL COGNITIVE AND AFFECTIVE NEUROSCIENCE (2014)

Article Neurosciences

Effects of psilocybin on hippocampal neurogenesis and extinction of trace fear conditioning

Briony J. Catlow et al.

EXPERIMENTAL BRAIN RESEARCH (2013)

Article Clinical Neurology

Lysergic acid diethylamide (LSD) for alcoholism: meta-analysis of randomized controlled trials

Teri S. Krebs et al.

JOURNAL OF PSYCHOPHARMACOLOGY (2012)

Article Multidisciplinary Sciences

Anhedonia requires MC4R-mediated synaptic adaptations in nucleus accumbens

Byung Kook Lim et al.

NATURE (2012)

Editorial Material Psychiatry

Research Domain Criteria (RDoC): Toward a New Classification Framework for Research on Mental Disorders

Thomas Insel et al.

AMERICAN JOURNAL OF PSYCHIATRY (2010)

Article Neurosciences

Antidepressant Effect of Optogenetic Stimulation of the Medial Prefrontal Cortex

Herbert E. Covington et al.

JOURNAL OF NEUROSCIENCE (2010)

Review Neurosciences

Animal models of neuropsychiatric disorders

Eric J. Nestler et al.

NATURE NEUROSCIENCE (2010)

Article Multidisciplinary Sciences

Psychometric Evaluation of the Altered States of Consciousness Rating Scale (OAV)

Erich Studerus et al.

PLOS ONE (2010)

Article Multidisciplinary Sciences

Role of Serotonin via 5-HT2B Receptors in the Reinforcing Effects of MDMA in Mice

Stephane Doly et al.

PLOS ONE (2009)

Article Multidisciplinary Sciences

Rapid modulation of spine morphology by the 5-HT2A serotonin receptor through kalirin-7 signaling

Kelly A. Jones et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2009)

Review Clinical Neurology

Human hallucinogen research: guidelines for safety

M. W. Johnson et al.

JOURNAL OF PSYCHOPHARMACOLOGY (2008)

Article Multidisciplinary Sciences

Identification of a serotonin/glutamate receptor complex implicated in psychosis

Javier Gonzalez-Maeso et al.

NATURE (2008)

Article Behavioral Sciences

Social reward among juvenile mice

J. B. Panksepp et al.

GENES BRAIN AND BEHAVIOR (2007)

Review Clinical Neurology

Serotonin (1A) receptor involvement in acute 3,4-methylenedioxymethamphetamine (MDMA) facilitation of social interaction in the rat

KC Morley et al.

PROGRESS IN NEURO-PSYCHOPHARMACOLOGY & BIOLOGICAL PSYCHIATRY (2005)

Review Neurosciences

LTP and LTD: An embarrassment of riches

RC Malenka et al.

NEURON (2004)

Review Neurosciences

Structural plasticity associated with exposure to drugs of abuse

TE Robinson et al.

NEUROPHARMACOLOGY (2004)

Article Pharmacology & Pharmacy

Hyperlocomotive and discriminative stimulus effects of cocaine are under the control of serotonin2C (5-HT2C) receptors in rat prefrontal cortex

M Filip et al.

JOURNAL OF PHARMACOLOGY AND EXPERIMENTAL THERAPEUTICS (2003)

Article Behavioral Sciences

Cellular mechanisms of social attachment

LJ Young et al.

HORMONES AND BEHAVIOR (2001)

Article Neurosciences

Modulation of morphine sensitization in the rat by contextual stimuli

A Badiani et al.

PSYCHOPHARMACOLOGY (2000)