Nature Communications (Mar 2023)

Characterizing brain dynamics during ketamine-induced dissociation and subsequent interactions with propofol using human intracranial neurophysiology

  • Fangyun Tian,
  • Laura D. Lewis,
  • David W. Zhou,
  • Gustavo A. Balanza,
  • Angelique C. Paulk,
  • Rina Zelmann,
  • Noam Peled,
  • Daniel Soper,
  • Laura A. Santa Cruz Mercado,
  • Robert A. Peterfreund,
  • Linda S. Aglio,
  • Emad N. Eskandar,
  • G. Rees Cosgrove,
  • Ziv M. Williams,
  • R. Mark Richardson,
  • Emery N. Brown,
  • Oluwaseun Akeju,
  • Sydney S. Cash,
  • Patrick L. Purdon

DOI
https://doi.org/10.1038/s41467-023-37463-3
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 11

Abstract

Read online

The neural mechanisms underpinning ketamine’s dissociative and antidepressant effects remain poorly understood. Here, the authors analyzed ketamine-induced brain dynamics with intracranial recordings in humans and found that ketamine engages different brain areas in distinct frequency-dependent patterns that may relate to its dissociative and antidepressant effects.