Accepting PhD Students

PhD projects

Cannabis - Effects on brain function Brain Imaging - Electroencephalogram (EEG) - Event Related Potentials (ERP) Mood Disorders (Depression, Anxiety, PTSD) Drug use - Addiction Emotion Processing

Willing to speak to media


Research output per year

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Personal profile


Dr Lucy Troup is a Clinical Cognitive Neuroscientist whose research focus is centered round the effects of Cannabis use on brain function, behavior, and within its wider context in society. Her expertise is also centered around emotion processing and emotion processing disorders (Depression, Anxiety & PTSD), generally, and in relation to both recreational and medical cannabis use. The approach taken in the Troup lab places an emphasis on the importance of both endogenous and exogenous variables in understanding cannabis use and emotion processing. Research methods include primarily brain imaging, using Electroencephalogram (EEG) in particular Event Related Potentials (ERP). Recent research has an emphasis on the effects of cannabis on emotion processing from a number of perspectives, including clinical neuroscience, social neuroscience, and more traditional cognitive neuroscience using both quantitative, relational and qualitative methods. As well as traditional academic research she has extensive relationships with the use of cannabis in Colorado, the first US state to legalize cannabis for recreational use. She has advised policy makers, educational leaders, medical professionals and the cannabis industry. She has published both in academic journals and in many other media outlets including news articles, television and radio. Her work has been syndicated across international media on many occasions. The emphasis of her approach is stressing the importance of developing fact-based scientific support for arguments for and against cannabis exposure. The Troup Lab has several ongoing research collaborations with research partners in the USA & Canada.

Current research activities

The effects of Cannabis use on brain and behavior using Electrophysiology (EEG & Event Related Potentials)

Area of academic expertise - outline

Cannabis use and effects

Drug Policy/Legalization

Event Related Potentials



External positions

Editor, PLOS ONE

1 May 2019 → …

Affiliate Faculty - Graduate School, Northern Michigan University

2018 → …

Affiliate Faculty, Colorado State University

1 Jul 201731 Dec 2018

Editor - Frontiers Psychology, Frontiers Psychology

2016 → …

Editor - Peer J, Peer J

2016 → …

Editor - Medicine, wolters-kluwer

2016 → …


  • BF Psychology
  • Cannabis
  • Event Related Potentials
  • EEG
  • Emotion Processing
  • Clinical Neuroscience
  • Drug Policy
  • Brain Imaging
  • Disorders of Emotion Processing

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Research Output

Anthropogenic noise source and intensity effects on mood and relaxation in simulated park environments

Benfield, J. A., Rainbolt, G. A. N., Troup, L. J. & Bell, P. A., 14 Oct 2020, In : Frontiers in Psychology. 8 p., 570694.

Research output: Contribution to journalArticle

Open Access
  • Awareness of emotional expressions in cannabis users: an event-related potential study

    Torrence, R. D., Rojas, D. C. & Troup, L. J., 1 Feb 2019, In : Frontiers in Psychology. 10, 11 p., 00069.

    Research output: Contribution to journalArticle

    Open Access
  • 3 Citations (Scopus)
    137 Downloads (Pure)

    The effects of sex and residual cannabis use on emotion processing: an event related potential study

    Troup, L. J., Andrzejewski, J. A. & Torrence, R. D., Aug 2019, In : Experimental and Clinical Psychopharmacology. 27, 4, p. 318-325

    Research output: Contribution to journalArticle

    Open Access
  • 1 Citation (Scopus)
    48 Downloads (Pure)

    Variability in anterior insula grey matter volume correlates with awareness for peri-threshold backward-masked fearful faces

    Torrence, R. D., Davis, J. E., Troup, L. J. & Carlson, J. M., 30 Mar 2019, In : Journal of Integrative Neuroscience. 18, 1, p. 11-15 5 p.

    Research output: Contribution to journalArticle

    Open Access
  • 18 Downloads (Pure)

    Attentional bias toward fearful facial expressions: EEG correlates in theta oscillations

    Torrence, R. D., Troup, L. J. & Rojas, D. C., 24 Mar 2018, p. 85-85. 1 p.

    Research output: Contribution to conferencePoster


    • 8 Invited talk

    The "just say know" of the residual effects of cannabis use on emotion processing

    Lucy Troup (Speaker)

    28 Feb 2018

    Activity: Talk or presentationInvited talk

    The effects of Cannabis on Emotion Processing

    Lucy Troup (Speaker)

    26 Jan 2017

    Activity: Talk or presentationInvited talk

    Cannabis and its Effects on Psychological Function

    Lucy Troup (Speaker)

    20 Jan 2017

    Activity: Talk or presentationInvited talk

    Cannabis Safer Than Alcohol? Facts and Fiction of What Cannabis Does and Does Not Do

    Lucy Troup (Speaker)

    14 Apr 2016

    Activity: Talk or presentationInvited talk

    Press / Media

    Depression Treatment With Marijuana: Is CBD The Best Bet?

    Lucy Troup


    1 Media contribution

    Press/Media: Research

    TIME the Science of Emotions: Love-Laughter-Fear-Grief-Joy

    Lucy Troup


    1 Media contribution

    Press/Media: Research

    Cannabis and Mental Health

    Lucy Troup


    1 Media contribution

    Press/Media: Expert Comment