Episode 58

The Medicine Within | Ep. 7: Entropy, Plasticity & the Critical Window Period with Dr. Manesh Girn

July 24th, 2026

30 mins 59 secs

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About this Episode

In this final episode of the Medicine Within series, neuroscientist Dr. Manesh Girn (The Psychedelic Scientist) joins us to unpack what happens in the brain after a psychedelic experience.

Together, we explore:

  • What actually happens in the brain after a psychedelic journey
  • Neuroplasticity and how psychedelics support lasting change
  • The science of entropy and altered states of consciousness
  • The "critical window" after a psychedelic experience—and why it matters
  • Whether different psychedelics create different windows for change
  • Why it's not just serotonergic psychedelics that can enhance neuroplasticity
  • Whether cannabis is a psychedelic

Working with partners in government, business, and the community, MAPS Canada is committed to advancing psychedelic medicine by supporting scientific, multidisciplinary research; advocating for drug policy reform; offering public education; and supporting equitable access to legal and regulated psychedelic medicine in Canada.

The Multidisciplinary Association for Psychedelic Studies (MAPS) was formed in the US in 1986, in response to the US Drug Enforcement Agency’s classification of MDMA as Schedule 1 substance, and has been developing medical, legal, and cultural contexts for people to benefit from the careful uses of psychedelics since then.

MAPS Canada was founded as a sister organization to MAPS in 2011, and is a registered Canadian non-profit organization. Based in Vancouver and with hundreds of volunteers from across Canada, MAPS Canada is moving forward to become the leading Canadian source of information, resources and advocacy regarding psychedelic medicine and related clinical research, education, and public policy.

Learn More at https://mapscanada.org/about/

MAPS Canada is entirely funded by public donation and your support really makes a difference. Find out about all the ways you can support MAPS Canada’s mission by visiting our donation link https://mapscanada.org/donate/

Many ways to engage, join our community:

https://www.instagram.com/mapscanada
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