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Matthew G. Kirkpatrick

11 papers in the library · 318 citations · publishing 2014-2026

Papers

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Development of the MDMA-Assisted Psychotherapy Side Effects Tool (M-SET): a Delphi study.

BMJ Open May 11, 2026 Julia Colcott, Alexandre A. Guerin, Olivia Carter et al.

Despite growing interest in the therapeutic potential of 3,4-methylenedioxymethamphetamine (MDMA), no targeted measure to systematically assess side effects of MDMA-assisted psychotherapy (MDMA-AP) exists. Our aim was to develop an MDMA-Assisted Psychotherapy Side Effects Tool (M-SET) to capture side effects over the course of MDMA-AP. Informed by a systematic review and a review of other...

Effect of a mindfulness training app on a cigarette quit attempt: an investigator-blinded, 58-county randomized controlled trial.

JNCI cancer spectrum October 1, 2023 David S Black, Matthew G. Kirkpatrick

Background: Cigarette smoking is the leading cause of preventable cancers. A majority of the 34 million people who currently smoke report wanting to quit. Mindfulness training apps offer a guided telehealth intervention to foster individuals' behavioral meditation practice. We present the main outcomes of a parallel-group randomized controlled trial that tested app-based mindfulness training vs...

Test of daily app-based mindfulness meditation preceding a planned smoking quit attempt date on abstinence: Protocol for a randomized controlled trial recruiting across the 58 counties of California.

Contemporary Clinical Trials September 2022 David S Black, Matthew G. Kirkpatrick

A majority of the 34 million people who currently smoke cigarettes report wanting to quit smoking yet most attempts to quit end in relapse. A mindfulness based intervention (MBI) is an intervention package used to reinforce an individual's practice of mindfulness meditation in daily life. MBIs delivered by phone app offer daily prompts to guide bouts of mindfulness meditation, that is,...

Detection of acute 3,4-methylenedioxymethamphetamine (MDMA) effects across protocols using automated natural language processing

Neuropsychopharmacology January 24, 2020 Carla Agurto, Guillermo Cecchi, Raquel Norel et al. 33 citations

Abstract The detection of changes in mental states such as those caused by psychoactive drugs relies on clinical assessments that are inherently subjective. Automated speech analysis may represent a novel method to detect objective markers, which could help improve the characterization of these mental states. In this study, we employed computer-extracted speech features from multiple domains...

Urinary and plasma oxytocin changes in response to MDMA or intranasal oxytocin administration.

Psychoneuroendocrinology December 2016 Sunday M. Francis, Matthew G. Kirkpatrick, Harriet de Wit et al.

The neuropeptide oxytocin (OT) has received increased experimental attention for its putative role in both normal social functioning and several psychiatric disorders that are partially characterized by social dysfunction (e.g., autism spectrum disorders: ASD). Many human experimental studies measure circulating plasma levels of OT in order to examine the relationship between the hormone and...

Oxytocin receptor gene variation predicts subjective responses to MDMA

Social Neuroscience January 20, 2016 Anya K. Bershad, Jessica Weafer, Matthew G. Kirkpatrick et al. 35 citations

3,4-Methylenedioxymethamphetamine (MDMA, "ecstasy") enhances desire to socialize and feelings of empathy, which are thought to be related to increased oxytocin levels. Thus, variation in the oxytocin receptor gene (OXTR) may influence responses to the drug. Here, we examined the influence of a single OXTR nucleotide polymorphism (SNP) on responses to MDMA in humans. Based on findings that...

DOI: 10.1080/17470919.2016.1143026 (opens in new tab) MDMA Ecstasy Oxytocin receptor Single-nucleotide polymorphism +2

Intimate insight: MDMA changes how people talk about significant others

Journal of Psychopharmacology April 29, 2015 Matthew J. Baggott, Matthew G. Kirkpatrick, Gillinder Bedi et al. 69 citations

Rationale: ±3,4-methylenedioxymethamphetamine (MDMA) is widely believed to increase sociability. The drug alters speech production and fluency, and may influence speech content. Here, we investigated the effect of MDMA on speech content, which may reveal how this drug affects social interactions. Method: Thirty-five healthy volunteers with prior MDMA experience completed this two-session,...

Prosocial effects of MDMA: A measure of generosity

Journal of Psychopharmacology March 4, 2015 Matthew G. Kirkpatrick, Andrew W. Delton, Theresa E. Robertson et al. 86 citations

Background: 3,4-methylenedioxymethamphetamine (MDMA) produces “prosocial” effects that contribute to its recreational use. Few studies have examined the cognitive and behavioral mechanisms by which MDMA produces these effects. Here we examined the effect of MDMA on a specific prosocial effect, i.e. generosity, using a task in which participants make decisions about whether they or another...

DOI: 10.1177/0269881115573806 (opens in new tab) MDMA Generosity Prosocial behavior Developmental psychology +2

MDMA: a social drug in a social context.

Psychopharmacology October 5, 2014 Matthew G. Kirkpatrick, Harriet de Wit 43 citations

RationaleThe drug ±3,4-methylenedioxymethamphetamine (MDMA, "ecstasy," "molly") is thought to produce prosocial effects and enhance social interaction. However, in most laboratory studies to date, the participants have been tested under nonsocial conditions, which may not simulate the effects the drug produces in more naturalistic social settings.MethodsHealthy experienced MDMA users...

Effects of MDMA and Intranasal oxytocin on social and emotional processing.

Neuropsychopharmacology June 2014 Matthew G. Kirkpatrick, Royce Lee, Margaret C. Wardle et al.

MDMA (± 3,4-methylenedioxymethamphetamine, 'ecstasy') is used recreationally, reportedly because it increases feelings of empathy, sociability, and interpersonal closeness. One line of evidence suggests that MDMA produces these effects by releasing oxytocin, a peptide involved in social bonding. In the current study, we investigated the acute effects of MDMA and oxytocin on social and emotional...

‘Ecstasy’ as a social drug: MDMA preferentially affects responses to emotional stimuli with social content

Social Cognitive and Affective Neuroscience March 27, 2014 Margaret C. Wardle, Matthew G. Kirkpatrick, Harriet de Wit 52 citations

3,4-Methylenedioxymethamphetamine (MDMA, 'ecstasy') is used recreationally to improve mood and sociability, and has generated clinical interest as a possible adjunct to psychotherapy. One way that MDMA may produce positive 'prosocial' effects is by changing responses to emotional stimuli, especially stimuli with social content. Here, we examined for the first time how MDMA affects subjective...