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PsyDactic

T. Ryan O'Leary

A resource for psychiatrists and other medical or behavioral health professionals interested in exploring the neuroscientific basis of psychiatric disorders, psychopharmacology, neuromodulation, and other psychiatric interventions, as well as discussions of pseudoscience, Bayesian reasoning, ethics, the history of psychiatry, and human psychology in general.

This podcast is not medical advice.  It strives to be science communication.  Dr. O'Leary is a skeptical thinker who often questions what we think we know.  He hopes to open more conversations about what we don't know we don't know.

Find transcripts with show-notes and references on each episodes dedicated page at psydactic.buzzsprout.com.

You can leave feedback at https://www.psydactic.com.

The visual companions, when available, can be found at https://youtube.com/@PsyDactic.

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  • 21 episodes
  • Avg 43 min
  • English
Counted on this page — what you have heard stays on this device, so it is not something the list can be paged by.
  • #66
    Dec 27, 2024 · 24 min

    In a Word - Agonist

    --In today's episode, Dr. O'Leary explores agonists, inverse agonists, partial agonists, and antagonists. These terms describe how molecules bind to receptors and either increase, decrease, or prevent changes in receptor signaling. Agonists increase receptor activity, with full agonists like dopamine and serotonin raising activity to its maximum. Partial agonists can increase activity in the absence of full agonists but decrease it in their presence. Inverse agonists reduce the baseline activity of receptors. Antagonists block receptor activity without changing the baseline rate. We also discussed the complex interactions between these molecules and how their effects can vary depending on the presence of other molecules and the specific receptors involved. Below are a couple of helpful references: https://pmc.ncbi.nlm.nih.gov/articles/PMC2804881/ https://link.springer.com/article/10.2165/00023210-199605050-00007 Please leave feedback at https://www.psydactic.com or send any comments to feedback@psydactic.com. References and readings (when available) are posted at the end of each episode transcript, located at psydactic.buzzsprout.com. All opinions expressed in this podcast are exclusively those of the person speaking and should not be confused with the opinions of anyone else. We reserve the right to be wrong. Nothing in this podcast should be treated as individual medical advice.

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