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Jim Cavanagh

@jimfcav.bsky.social
240 followers 160 following 40 posts

Professor @UNM. Here to contribute to EEG research and open data practices. www.crclunm.com

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Jim Cavanagh @jimfcav.bsky.social · 17/09/2026
This looks great - wish I could make it. Are you going to also compare task-evoked signatures between species?
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Jeremy Hogeveen @jeremyhogeveen.bsky.social · 01/09/2026
We ( @vincentcostaphd.bsky.social and I ) wrote a "Hot Topics" piece for @npp-journal.bsky.social on the potential utility of frontopolar cortex TMS in precision psychiatry. Relevant now that this region has been accessed in some excellent recent NHP studies. www.nature.com/articles/s41...
nature.com
Translating macaque frontopolar cortex discoveries into psychiatric treatments - Neuropsychopharmacology
Neuropsychopharmacology - Translating macaque frontopolar cortex discoveries into psychiatric treatments
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Narayanan Lab @narayananlab.bsky.social · 01/09/2026
Vey excited that this paper is our – briefly, we show that 4 Hz STN DBS has the potential to improve cognitive control in PD patients with cognitive impairment, and the most dysfunctional 4 Hz activity. www.nature.com/articles/s41531-026-…
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Vinny Costa @vincentcostaphd.bsky.social · 13/08/2026
I’m biased, but I think Jeremy is unequivocally one of the best cognitive neuroscientists around and if your interests are aligned you should get in touch with him.
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Jim Cavanagh @jimfcav.bsky.social · 27/07/2026
This line of criticism gets tedious. Someone should just publish a paper saying "You know, you can test theoretical predictions too." Or maybe we just require everyone to write a paper citing Popper, Kuhn, Meehl and Shadish before they're allowed to publish science.
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Jim Cavanagh @jimfcav.bsky.social · 29/06/2026
Is @springernature somehow related to @apadivision6? There’s a shared vibe of “here’s our papers, but under no circumstance are you allowed to access them”. Anyhow, if you know a place where people could download this, that would be super neat.
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Jim Cavanagh @jimfcav.bsky.social · 22/05/2026
See if you can find the theta one next! I have some memory that it was first observed in hedgehog thalamus and was labeled theta after the ‘T’. Or maybe that was a fever dream.
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Society for Psychophysiological Research (SPR) @therealspr.bsky.social · 13/05/2026
"Psychophys Is" encourages SPR members to demonstrate their ability to communicate their work to a non-scientific audience. Please submit your videos to our 3rd annual contest by Sept 1! Check out last year's winning videos on Parkinson's, [1/3]
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Jim Cavanagh @jimfcav.bsky.social · 23/04/2026
I’m still not fully convinced that scalp recorded HEPs aren’t just artifact. Got any thoughts that could convince me?
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Jim Cavanagh @jimfcav.bsky.social · 18/04/2026
Hey me too! (And it was the 3rd submission)
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Jim Cavanagh @jimfcav.bsky.social · 26/02/2026
I learned that lesson in reviewer responses to a recent manuscript (revisions forthcoming!) where we had to leverage a Shrinking Spotlight model in the newly updated HSSM package. I'll detail that in depth when it comes out. It was a long lesson to learn about appropriate use of SSM.
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Jim Cavanagh @jimfcav.bsky.social · 26/02/2026
Important lesson here: why were they never published? I wanted to see if pupil related to decision threshold in HDDM. In my time at @lnccbrown.bsky.social, @twiecki.bsky.social was pretty adamant that HDDM couldn't effectively estimate parameters from response conflict tasks.
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Jim Cavanagh @jimfcav.bsky.social · 26/02/2026
And how they affected pupilometry:
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Jim Cavanagh @jimfcav.bsky.social · 26/02/2026
I thought I'd show these, since the first two (unpublished) figures were so nice. You can see how the informative cues changed behavior:
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Jim Cavanagh @jimfcav.bsky.social · 24/02/2026
I’ll have to read this. I had 2 studies showing a lack of use of proactive cues on a Simon task, then another study where there was an effect! I never published that last one tho (no reason). (Mild regrets)
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Jim Cavanagh @jimfcav.bsky.social · 02/01/2026
Here's the goods: authors.elsevier.com/a/1mNOx4sIRv...
authors.elsevier.com
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Jim Cavanagh @jimfcav.bsky.social · 02/01/2026
We discuss over this valence dissociation as an opponent process, detail the analogy of this goal +RPE update as a critic-like process, and debate the generative neural structures contributing to this goal update process. A huge thanks to Clay Holroyd whos precision balanced out my enthusiasm.
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Jim Cavanagh @jimfcav.bsky.social · 02/01/2026
This goal-focus places the computation in the domain of frontal control-based processes. Oddly, RewP only responds to the degree of surprise during goal achievement (i.e. +RPE). Goal failures (-RPE) trigger the canonical N2 control-related system that we already know so much about (ahem theta etc).
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Jim Cavanagh @jimfcav.bsky.social · 02/01/2026
Well, its easy to confuse goals and rewards. But you can make anything your goal - even if it isn't hedonically 'rewarding'. See Figure 3 for an example of my kids playing Mario Kart. (OMG what happens next!)
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Jim Cavanagh @jimfcav.bsky.social · 02/01/2026
Yeah! Let's get this year started off right. A new theoretical model for everyone's favorite sensitive and specific neural marker. So why is it a marker of goals if it is called the Reward Positivity? 1/4
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Trends in Cognitive Sciences @cp-trendscognsci.bsky.social · 02/01/2026
Online Now: The Reward Positivity signals a goal prediction error
dlvr.it
The Reward Positivity signals a goal prediction error
The Reward Positivity (RewP) is an electroencephalogram (EEG) feature that emerges following performance feedback and is commonly understood to index both positive and negative reward-prediction error (RPE+ and RPE−, respectively) signals. In contrast to this dominant perspective, we argue that the RewP is an independent EEG feature that selectively responds to positive RPE and is superimposed on a common background signal. We further propose that the RewP signals a goal prediction error: it is elicited by abstract signals instead of by hedonic 'rewards'. This goal prediction error appears to be produced by a critic-like architecture that is associated with the actor–critic framework in reinforcement learning. This perspective emphasizes the role of the RewP in goal attainment and cognitive control as opposed to being a simple indicator of reward receipt.
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Quentin Huys @docqhuys.bsky.social · 21/12/2025
Postdoctoral research position in #ComputationalPsychiatry and #EEG as part of relmed.ac.uk trial testing reinforcement learning as biomarker for antidepressant treatment response. www.ucl.ac.uk/work-at-ucl/... @uclbrainscience.bsky.social @mikebrowning.bsky.social @relmed.bsky.social
relmed.ac.uk
Antidepressant treatment shouldn't be a guessing game. RELMED is working towards using advanced research to predict which medication is most likely to help each person along their individual path to recovery.
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Narayanan Lab @narayananlab.bsky.social · 30/11/2025
Our latest paper showing that a few minutes of EEG can predict mortality in PD is now up: www.sciencedirect.com/science/arti...
sciencedirect.com
Linear predictive coding electroencephalography algorithms predict mortality in Parkinson’s disease
Mortality is increased in Parkinson’s disease (PD) and is difficult to predict because of its heterogeneity and the availability of few reliable progn…
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Society for Psychophysiological Research (SPR) @therealspr.bsky.social · 20/10/2025
🚨 “Psychophys Is” 2025 video contest: winners announced! 🚨 Check out the three winning videos, plus all the brilliant submissions: sprweb.org/spr-video-co...
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Jim Cavanagh @jimfcav.bsky.social · 13/10/2025
Congratulations - this will be very helpful in guiding my lab's work on this topic.
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Jim Cavanagh @jimfcav.bsky.social · 11/10/2025
I spent some time looking into this question myself using the AX-CPT / DPX tasks: e.g. pubmed.ncbi.nlm.nih.gov/31368085/ The expected proactive theta patterns were certainly present, but about 1/3 as big as reactive control.
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Jim Cavanagh @jimfcav.bsky.social · 08/10/2025
Looking forward to reading it in more depth. Any chance to look at dmPFC-dlPFC theta band phase sychnrony?
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Society for Psychophysiological Research (SPR) @therealspr.bsky.social · 30/09/2025
✨🎬 “Psychophys Is” 2025 videos are lighting up the contest! This video was submitted by Olivia Quintana, Mark Lavelle, Kumar Narayana & James F. Cavanagh. Submit your video before October 1, 2025: sprweb.org/spr-video-co...
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Jim Cavanagh @jimfcav.bsky.social · 18/09/2025
I'd put frontal theta phase synchrony as a mechanism for implementing control at the top of the successes. Theoretically motivated, specific to control evocation, specific to theta, and *highly* replicated (see Fig 9.2: awspntest.apa.org/record/2023-...) 2/2
awspntest.apa.org
APA PsycNet
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Jim Cavanagh @jimfcav.bsky.social · 18/09/2025
I've always thought of the problem as a more theoretical vs. atheoretical issue. Everyone can run methods and show connectivity. But *why* are these effects there? When are they *not there*? What is the connectivity *doing*? Few studies even bother to ask. 1/2
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Jim Cavanagh @jimfcav.bsky.social · 09/09/2025
Really looking forward to reading this. Your work was very influential for a recent review article I wrote - and now this preprint seems even more relevant: osf.io/preprints/ps...
osf.io
OSF
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Tom Donoghue @tomdonoghue.bsky.social · 14/08/2025
Seems as good a time as any to re-share the "OpenLists" collection - an openly accessible set of lists of available resources in / for Cognitive Neuroscience! Includes open M/EEG & iEEG datasets & open software / analysis tools, and resources for DSP, Python, git, etc: openlists.github.io
openlists.github.io
OpenLists
Curated lists of Open Resources.
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Jim Cavanagh @jimfcav.bsky.social · 21/07/2025
Where Does EEG Come From and What Does It Mean? pubmed.ncbi.nlm.nih.gov/28314445/
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Jim Cavanagh @jimfcav.bsky.social · 07/07/2025
ORDER NOW and get a super-neato commentary. www.biologicalpsychiatrycnni.org/article/S245...
biologicalpsychiatrycnni.org
Getting to the Bottom of Things: Magnetoencephalography Reveals Weak Ventral Frontal Reward Responses in Adults With Major Depressive Disorder
The past decade has seen a massive shift in neuroimaging toward analysis of resting-state data collected from very large samples. That approach has key strengths, but task-based neuroimaging in smalle...
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Jim Cavanagh @jimfcav.bsky.social · 12/06/2025
is it a pony?
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Jim Cavanagh @jimfcav.bsky.social · 22/05/2025
You got a template?
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Nadja Ging Jehli @nadjagingjehli.bsky.social · 17/05/2025
Excited to share our new paper: whether STN stimulation increases impulsivity depends on theta frequency. 🧠🤓 Grateful to have contributed alongside such a fantastic team! Rachel, Kumar, @jimfcav.bsky.social @janw.bsky.social and more! Link 👇: www.sciencedirect.com/science/arti...
sciencedirect.com
Theta-frequency subthalamic nucleus stimulation increases decision threshold
Executive functions are often impaired in patients with Parkinson’s disease (PD), and these deficits can be predicted by decreased frontal cortical 4-…
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Jim Cavanagh @jimfcav.bsky.social · 14/05/2025
Neat thought about sign-tracking. But I don't see any evidence that RewP is involved in any RL or salience-related enhanced neural response to an imperative cue. It's feedback only (as far as we know). Response, volition, attention, meaning: all these enhance ERPs; RewP isn't any different.
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Jim Cavanagh @jimfcav.bsky.social · 14/05/2025
In these cases we cite, the interspersed proxy cues are highly predictive of the desired outcome, so I think they end up being the same thing. (e.g. when you see ♦️, press 👈 to get a 😀. But before the 😀 you get a 🍇. This 🍇==😀 for the purposes of the RewP)
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Jim Cavanagh @jimfcav.bsky.social · 14/05/2025
I remember when you did eeg!
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Jim Cavanagh @jimfcav.bsky.social · 13/05/2025
1) We review its elicitation, quantification, generation & theoretical interpretation. 2) We challenge the assumption of a single bipolar signal (+RPE to -RPE) in the difference wave. 3) We propose a refined theoretical account: from reward receipt to a more nuanced signal of goal attainment.
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Jim Cavanagh @jimfcav.bsky.social · 13/05/2025
Big news. After 48 drafts, Clay Holroyd and I are excited to present a narrative review and new theoretical summary on our favorite sensitive & specific EEG marker of reward receipt - the Reward Positivity: tinyurl.com/yzy98rur
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Jim Cavanagh @jimfcav.bsky.social · 17/04/2025
Congratulations
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Lindsay S. Shaffer @lindsayshaffer.bsky.social · 04/04/2025
Excited to share my first 1st & corresponding author preprint! Here, I examine an EEG component, the Reward Positivity (RewP), during inference-based decision-making w/Holly Crowder, Peter Kakalec, Lam Duong, Craig McDonald, & Jim Thompson. (1/15)
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Jim Cavanagh @jimfcav.bsky.social · 26/02/2025
That student's name? Seth Abrutyn circa 1998.
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Jim Cavanagh @jimfcav.bsky.social · 07/02/2025
Yeah I learned that from writing a paper with you. I think you have the shortest responses I've ever seen. Brevity is... ... good.
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Jim Cavanagh @jimfcav.bsky.social · 05/02/2025
Yeah only one guy I know had the cojones to try something like that: www.jneurosci.org/content/32/2...
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Jim Cavanagh @jimfcav.bsky.social · 05/02/2025
As more of a biologist than a modeler, I'm comfortable assuming that value is more complex than what RL accounts for. So ... not terribly surprised that a biological system acts like a complex affective/motivational register and not a highly restricted see-saw. (RewP as well, as you surely know)
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Jim Cavanagh @jimfcav.bsky.social · 03/02/2025
Finally got time to read it. Great paper. Here's my review: Major points: Why not just call it a P3a? Minor points: Your ERPs are all upside down
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