
Ceyda Sayalı
@CeydaSayali
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On a (world) journey to understand the human mind & brain. Faculty @JHPsychedelics | BA @kocuniversity | PhD @BrownUniversity @BadreLab | Postdoc @CoolsControl
Baltimore, MD, USA
Joined June 2019
RT @JHPsychedelics: ‼️NEW STUDY FOR HEALTHY VOLUNTEERS‼️. Join our study at Johns Hopkins exploring how psilocybin—a naturally occurring co….
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RT @JHPsychedelics: That’s a wrap on Psychedelic Science 2025! We had a fantastic time presenting our research and connecting with both new….
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RT @EliWeisman: Honored to have attended my first conference this past week at #CPDD2025 in New Orleans. Huge thank you to @CeydaSayali and….
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Live near Baltimore? I'm recruiting for a TMS/EEG study involving psilocybin. Come be part of cutting-edge neuroscience research!.
Join our brain stimulation research study!. Researchers at Johns Hopkins are investigating the effects of psilocybin—a psychoactive compound found in mushrooms—on brain activity and function using transcranial magnetic stimulation, EEG, fMRI, and cognitive testing. Scan the QR
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RT @BWe1ss: Pleasure to a be a part of this timely review examining the relevance and safety of psychedelic therapy for the treatment of pe….
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RT @ExistWell: Join the world’s premier psychedelic research center!. My lab at @JHPsychedelics is hiring 3 Research Program Coordinators.….
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RT @JHPsychedelics: From entropy measures to serotonin receptors, CPCR Postdoc Nate Heller and Director Fred Barrett (@FredBarrettPhD) offe….
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RT @JuhaGogulski: Preprint alert! We asked: does fMRI-guided targeting improve reliability of early TMS-evoked potentials (TEPs) in non-mot….
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This distinction highlights the need for tailored approaches. For TMS-EEG, focusing on targets with the highest SNR may yield better results than strictly following fMRI connectivity-based methods, particularly in artifact-prone regions like the DLPFC. 10/10.
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Our results reveal key differences between TMS-fMRI and TMS-EEG targeting. While fMRI-based targeting optimizes functional connectivity for engaging networks, TMS-EEG needs to prioritize signal-to-noise ratio (SNR) to minimize artifacts and maximize reliability. 9/10.
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While fMRI-guided individualized targeting improves precision, it didn’t consistently enhance TEP reliability for non-motor regions. This highlights the artifact challenges unique to TMS/EEG in areas like the DLPFC and angular gyrus. 8/10.
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M1 is still the benchmark: Motor cortex showed the highest TEP reliability (mean CCC = 0.59). Non-motor regions, especially anterior DLPFC, lagged behind in reliability potentially due to artifacts. 7/10
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Using three protocols (single-pulse, SICI, LICI) and two targeting methods (individualized/resting state fMRI-based & Neurosynth-derived coordinates), we compared TEP reliability in these regions to M1. 6/10
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We asked: How reliable are TMS-evoked potentials (TEPs) in non-motor cortical regions like the DLPFC and angular gyrus? And does fMRI-guided targeting improve this reliability? 5/10
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This work represents a leap from fMRI-based TMS targeting into the more artifact-prone realm of TMS/EEG. Let’s talk about what we found and why it matters. 4/10.
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While figuring out this system from scratch, I met Pantelis Lioumis at Aalto University who not only offered invaluable insights but also became a collaborator and coauthor on this study along with his team: @JuhaGogulski, Ida Granö. I’m so grateful! 3/10.
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The noise in TMS/EEG is thousands of times greater than the signal—a challenge that stems from the complexities of combining TMS pulse with EEG. Coil-induced muscle artifacts, noise, and electrical interference all made me rethink what I thought I knew about neuroimaging. 2/10.
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As fMRI researchers, @FredBarrettPhD and I wanted to explore whether individualized target engagement defined by fMRI matters for TMS/EEG. But this was my first time working with TMS/EEG, and what I discovered was. surprising! 1/10
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RT @JHPsychedelics: Dr. Ceyda Sayali (@CeydaSayali) is presenting her research investigating the Neurocognitive Mechanisms of Psychedelics….
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RT @JHPsychedelics: Thrilled to share a new study in Neuron (@NeuroCellPress) led by CPCR post-doc Dr. Praachi Tiwari (@PraachiTiwari) duri….
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