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Posts by Redmond O'Connell

My review on the "Confidence-accuracy dissociations in perceptual decision making" is now published. I think that this will be useful to both experts and newcomers to the field.

www.sciencedirect.com/science/arti...

5 days ago 26 13 0 0
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Dissociable dynamic effects of expectation during statistical learning Neural responses during statistical learning reveal dissociable dynamic effects of expectation, supporting the opposing process theory within trials while demonstrating contrasting effects across tria...

🚨New paper alert 🚨

Using EEG and decoding analyses we find dynamic effects of expectation during statistical learning, both within and across trials 🧠

@auksz.bsky.social @fedemar.bsky.social
Caspar Schwiedrzik

elifesciences.org/articles/103...

1 month ago 32 11 0 1

We are looking to hire a postdoc and a lab manager / research assistant for our human intracranial EEG lab in NY (hbmlab-nyc.com). DM or email me if you're interested to learn more!

4 weeks ago 0 5 0 0

Check out our new paper showing early V1 choice probability effects while accounting for other potentially mediating processes - the interesting fruits of yet more excellent, rigorous work by Kieran Mohr

1 month ago 6 2 0 0

thanks as ever to @dpmcgovern.bsky.social and @spk3lly.bsky.social

1 month ago 0 0 0 0

Finally, we note that this component bears many similarities to the classic Contingent Negative Variation (CNV) and Readiness Potential (RP) and that our results point to a potential unifying account of these signals.

1 month ago 0 0 1 0

This suggests that the brain uses urgency signal not only to accelerate motor planning but also to hasten cognitive deliberation

1 month ago 0 0 1 0

But the signal is not itself directly tied to motor execution. When decision reports must be withheld until cued, this signal terminates alongside neural signatures of evidence accumulation and well before the final response.

1 month ago 0 0 1 0
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This frontocentral ERP component builds as a function of time, but not evidence strength, and adapts to varying time pressure demands in a manner that closely tracks static and dynamic bound adjustments identified both by behavioural modeling and effector-selective motor preparation signals.

1 month ago 0 0 1 0
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A Movement-Independent Signature of Urgency During Human Perceptual Decision Making - PubMed How does the brain adjust its decision processes to ensure timely decision completion? Computational modelling and electrophysiological investigations have pointed to dynamic 'urgency' processes that serve to progressively reduce the quantity of evidence required to reach choice commitment as time e …

Check out our new paper which isolates a human brain signal that specifically tracks the growing urgency to commit to a choice pubmed.ncbi.nlm.nih.gov/41611534/. This one was a long time coming! Sterling work from @harveymccone.bsky.social and a bunch of past lab members!

1 month ago 16 11 1 0
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Pace of ecology drives the tempo of visual perception across the animal kingdom - Nature Ecology & Evolution Using phylogenetic comparative methods across 237 species from disparate phyla, the authors show that species with fast-paced ecologies have higher temporal resolution of perception.

Pace of ecology drives the tempo of visual perception across the animal kingdom www.nature.com/articles/s41... - new paper with Clinton Haarlem, Cliodhna Hynes and colleagues

Different species see the world as fast as they need to...

1 month ago 88 37 4 1
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The major findings are that multiple aspects of a species' ecology shape the tempo of visual perception, which is a highly evolvable trait:

1 month ago 10 4 1 0

🀣

3 months ago 1 0 0 0

- I'm the exact right person to take on this challenge

3 months ago 6 0 2 0

⏳ Just over 2 weeks left to apply! ⏳

We are looking for talented Cognitive Neuroscientists to join our team at Trinity College Dublin for postdoc positions funded by a European Research Council (ERC) Consolidator grant.
www.jobs.ac.uk/job/DPV296/r...

www.ktsetsoslab.net/_files/ugd/0...

3 months ago 23 20 2 0
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Huge congrats Shane! πŸ‘

5 months ago 1 0 1 0
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Tracing the neural trajectories of evidence accumulation and motor preparation processes during voluntary decisions Voluntary decisions have previously been described by where they arise in the brain and how actions corresponding to one's choice are prepared. However, the processes by which these internally guided ...

Interested in how we make preference-driven decisions, and how this is implemented in the brain?

We report that neural correlates of evidence accumulation (CPP, Mu/Beta) are also observed during value-based decisions.

www.biorxiv.org/content/10.1...

Led by @laurencf.bsky.social (Lauren Fong)

1/n

5 months ago 40 15 1 1
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Big Doughnutty News.
Just out in Nature: the all-new 2025 Doughnut. Transformed from a single-year snapshot to an annual global monitor of 21st century social & ecological thriving. Available to all in an open-access paper by @andrewlfanning.bsky.social and me. 🧡 1/
www.nature.com/articles/s41...

6 months ago 250 164 6 18
Perceptual glimpses are locally accumulated and globally maintained at distinct processing levels

Check out our reviewed preprint, now out in eLife!
With @spk3lly.bsky.social, @redmondoconnell.bsky.social and Anna Geuzebroek

elifesciences.org/reviewed-pre...

While we work on improving the [solid] paper based on the reviews, here are the key take-home messages:

6 months ago 10 7 1 0

Introducing hMFC: A Bayesian hierarchical model of trial-to-trial fluctuations in decision criterion! Now out in @plos.org Comp Bio.
led by Robin Vloeberghs with @anne-urai.bsky.social Scott Linderman

Paper: desenderlab.com/wp-content/u... Thread ↓↓↓

#PsychSciSky #Neuroscience #Neuroskyence

6 months ago 51 30 3 0

Common neural choice signals reflect accumulated evidence, not confidence! Now out in @cerebralcortex.bsky.social w @helenevanmarcke.bsky.social @pierreledenmat.bsky.social @yfvisser.bsky.social @denizerdil.bsky.social a.o.

Paper: desenderlab.com/wp-content/u... Thread ↓↓↓

7 months ago 47 21 1 0
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On Wednesday at 16:30, I will be presenting at a symposium organised by @redmondoconnell.bsky.social SY24: Integrating Distinct Viewpoints On The Neural Origins Of Metacognition.

I will show a series of experiments on higher-order monitoring for distinguishing imagination and perception.

7 months ago 5 1 1 0
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Thanks Charlotte 🀣

7 months ago 1 0 0 0
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Trinity College unveils 'gamechanger' brain scanner. Watch the full interview with Professor Redmond O'Connell with RTE here:

www.rte.ie/news/ireland...

@redmondoconnell.bsky.social

7 months ago 15 6 0 1

Check out our new multisensory decision study!
We tackle a decades-old Q: does faster detection of bimodal targets come from a race or co-activation between modalities? And also a vital, orthogonal Q: is it one decision process or two?
A1: co-activation
A2: two!
Read here: rdcu.be/eASYd

8 months ago 19 11 1 0
Pattern-pulses and pattern-reversals evoke different cascades of cortical sources in the multifocal visual evoked potential | JOV | ARVO Journals

Delighted to share this paper, now published in @arvoinfo.bsky.social. With @spk3lly.bsky.social‬ and Anna Geuzebroek we explored differences in visual cortical responses for pattern pulses and pattern reversals. Here's the link:
jov.arvojournals.org/article.aspx...

8 months ago 10 6 0 1
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Ireland launches global talent fund! www.researchireland.ie/funding/glob...
If you're a neuroscience professor (assistant/associate/full) and would consider relocating to the vibrant and booming city of Dublin, please get in touch!

9 months ago 84 55 3 2

1/3 Check out our new commentary bsky.app/profile/imag....

9 months ago 10 5 1 1

Laminar MEG is possible across all cortical depths. Our comprehensive simulations outline SNR, head movement, and micro/macro anatomical limitations to source reconstruction precision. Not perfect by any chance, lots of confirmatory work ahead, but it's promising.

www.biorxiv.org/content/10.1...

9 months ago 9 4 0 0
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Neurally-informed modelling unravels a single evidence accumulation process for choices and subsequent confidence reports Subjective confidence in perceptual choices depends on computations occurring prior to and after choice commitment. However, the nature of these computations remains unclear. Current models disagree o...

Our newest preprint is out (doi.org/10.1101/2025.06.05.658071), with @lucvermeylen.bsky.social,Dasha Monakhovych, Cameron McCabe, Sarah-Louise Mannion, @kobedesender.bsky.social, @redmondoconnell.bsky.social, comparing post-decision confidence models against behaviour and neural decision signals...

10 months ago 14 9 1 2