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Tim Ricker

@timricker.bsky.social

Associate Professor of Psychology at the University of South Dakota | PI of the Memory & Attention Laboratory | Fan of chess, cards, video games, & hiking.

198 Followers  |  170 Following  |  42 Posts  |  Joined: 02.10.2023  |  2.0483

Latest posts by timricker.bsky.social on Bluesky


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If you are teaching any kind of statistics, probability or modeling classes, you'll love this website. Contains dozens of interactive simulations of random processes, with sliders, different visualizat options, and full numeric log ouput: www.randomservices.org/random/apps/...

16.02.2026 19:43 β€” πŸ‘ 53    πŸ” 18    πŸ’¬ 2    πŸ“Œ 0
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WorkingMemoryDiscussionMeeting Working Memory Discussion Meeting 2026 Wednesday 1st of July to Friday 3rd of July Parcevall Hall, Skipton, North Yorkshire. For all information about this meeting, use the menu at the top of the page...

Bookings for the 2026 Working Memory Discussion Meeting at Parcevall Hall are now open! 1st-3rd July, 2026.

All information here ->
sites.google.com/site/working...

17.02.2026 09:42 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Check out our new preprint, which presents object-based retrieval processes in multisensory working memory. Here we show that unimodal feature probes incidentally reactivate untested tones and orientations of audiovisual objects. +

17.02.2026 14:33 β€” πŸ‘ 10    πŸ” 4    πŸ’¬ 1    πŸ“Œ 0

poor bee GOLD_07, whose embarrassing mistake has been immortalised in a way beyond his comprehension

17.02.2026 21:19 β€” πŸ‘ 29    πŸ” 10    πŸ’¬ 2    πŸ“Œ 0
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Long-term effects of working memory retrieval from prioritized and deprioritized states - Communications Psychology Testing items in working memory improves long-term memory, especially for deprioritized items. This benefit shows when WM retrieval requires continuous recall, suggesting self-generated reports streng...

Briefly not attending something may help you remember it later πŸͺ„: new paper led by phenomenal PhD student Frieda Born (not on Bsky) out now in Comms Psychology:

www.nature.com/articles/s44...

17.02.2026 18:26 β€” πŸ‘ 24    πŸ” 12    πŸ’¬ 0    πŸ“Œ 1

This workπŸ‘‡ is now published in PB&R πŸ₯³πŸŽ‰ #workingmemory link.springer.com/article/10.3...

18.02.2026 06:45 β€” πŸ‘ 16    πŸ” 9    πŸ’¬ 0    πŸ“Œ 0
Image of the visual foraging task where a participant "collects" items on a tablet PC using a stylus. The screen content (blue berries) is AI generated.

Image of the visual foraging task where a participant "collects" items on a tablet PC using a stylus. The screen content (blue berries) is AI generated.

🧠 #Psych & #CogNeuro people β€” #attention!

Hiring a Research Associate (WissMA) in #Cologne to study #SelectiveAttention in action-related contexts (e.g., #VisualForaging)! PhD opportunity! Some teaching in German ...

karriere.crf-education.com/job/wissensc...

Please forward, repost!

18.02.2026 22:43 β€” πŸ‘ 6    πŸ” 6    πŸ’¬ 1    πŸ“Œ 0

Recent work has shown how vulnerable online survey research is to LLMs. Motivated by this, we examined our online Posner cueing data from Prolific. It's concerning. We now must carefully consider when (or whether?) online behavioral data can be trusted.
see our comment:
www.pnas.org/doi/10.1073/...

19.02.2026 12:00 β€” πŸ‘ 57    πŸ” 28    πŸ’¬ 5    πŸ“Œ 3
Professorship for Cognitive Psychology | Department of Psychology | UZH

Postdoctoral researcher (80%) in Cognitive Psychology, University of Zurich, Zurich, Switzerland

The successful applicant will work with the head of the Cognitive Psychology Unit, Klaus Oberauer, and the Cognitive Psychology team.
Application deadline: 20 March 2026

19.02.2026 14:14 β€” πŸ‘ 13    πŸ” 12    πŸ’¬ 0    πŸ“Œ 1
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NIH scraps policy that classified basic research in people as clinical trials The policy aimed to increase the transparency of research in humans but created β€œa bureaucratic nightmare” for basic neuroscientists.

Although the reporting requirements are over for basic experimental studies in humans, the principle of making research plans and results public and accessible is β€œa good one that we should all continue to work on,” Jeremy Wolfe says.

By @callimcflurry.bsky.social

#neuroskyence

bit.ly/4kpaBCC

05.02.2026 15:23 β€” πŸ‘ 7    πŸ” 6    πŸ’¬ 0    πŸ“Œ 0
Postdoctoral Requisition Details - Jobs@UIOWA: Search and Apply for Jobs at The University of Iowa Jobs@UIOWA: The official place to search and apply for jobs at The University of Iowa.

I am looking to hire 2-3 post-docs over the course of the next few months to work on questions related to cognitive control in humans, broadly construed. EEG, TMS, DBS, sEEG, fMRI or related methodological experience preferred.
Apply here:

jobs.uiowa.edu/jobSearch/po...

Lab website: wessellab.org

13.02.2026 22:54 β€” πŸ‘ 28    πŸ” 36    πŸ’¬ 1    πŸ“Œ 2
OSF

New preprint with @SamJung @timbrady.bsky.social and @violastoermer.bsky.social: osf.io/preprints/ps.... Here we uncover what might be driving the β€œmeaningfulness benefit” in visual working memory. Studies show that real objects are remembered better in VWM tasks than abstract stimuli. But why? 1/

09.02.2026 21:06 β€” πŸ‘ 36    πŸ” 22    πŸ’¬ 1    πŸ“Œ 0
Python for Computational Science Week

Dedicate time for self-study

7-15 Feb 2026

Your week, your focus, your progress. 
Let's make it happen.

Python for Computational Science Week Dedicate time for self-study 7-15 Feb 2026 Your week, your focus, your progress. Let's make it happen.

Join us 7-15 Feb for Python for Computational Science Week!

🐍 Strengthen your Python skills at your own pace with light support on Reddit.
πŸ€“ Perfect for students applying to our July courses or potential TAs looking to practice.

➑️ Take the pledge: airtable.com/appIQSZMZ0Jx...

#PythonWeek

03.02.2026 16:17 β€” πŸ‘ 3    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
  The decline effect (Protzko & Schooler, 2017) is an observed phenomenon where effect sizes in experiments apparently diminish in size from the first paper demonstrating the effect to later replications. This has been taken as a symptom of an unhealthy scientific ecosystem, possibly caused by the "winner's curse" (selection on significance and regression to the mean), publication bias or opportunistic analyses. I show that decline effects can arise as an artifact from a much simpler source: the original article determining the sign of the effect in a meta-analysis. Moreover, such artifactual decline effects will show correlations with some of the same experimental properties that one would expect from biases from poor behavior, such as the sample size of the original study.

The decline effect (Protzko & Schooler, 2017) is an observed phenomenon where effect sizes in experiments apparently diminish in size from the first paper demonstrating the effect to later replications. This has been taken as a symptom of an unhealthy scientific ecosystem, possibly caused by the "winner's curse" (selection on significance and regression to the mean), publication bias or opportunistic analyses. I show that decline effects can arise as an artifact from a much simpler source: the original article determining the sign of the effect in a meta-analysis. Moreover, such artifactual decline effects will show correlations with some of the same experimental properties that one would expect from biases from poor behavior, such as the sample size of the original study.

New draft: "Decline effects, statistical artifacts, and a meta-analytic paradox". In this manuscript I show how a common practice in meta-analysis (eg the 2015 Open Science Collaboration) creates artifactual signatures of poor scientific behavior. PDF: raw.githubusercontent.com/richarddmore... 1/x

02.02.2026 14:56 β€” πŸ‘ 77    πŸ” 29    πŸ’¬ 7    πŸ“Œ 4
Sage Journals: Discover world-class research Subscription and open access journals from Sage, the world's leading independent academic publisher.

🚨New paper altert🚨

As a synthesis of my PhD research, we revisited the prevailing assumption about the mechanisms underlying repetition learning, and re-evaluated these assumption in light of recent findings.

Now out in Perspectives on Psychological Science:
doi.org/10.1177/1745...

03.02.2026 18:01 β€” πŸ‘ 16    πŸ” 9    πŸ’¬ 0    πŸ“Œ 0

This was such a joy!!! In this work, the brilliant @fridaprintzlau.bsky.social demonstrates the core features of VWM representations, namely its dynamicity and flexibility. TLDR: VWM dynamically shifts its representational geometry during maintenance depending on its task demand! What an ART!

05.02.2026 12:17 β€” πŸ‘ 12    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

"Repetitions lead to better memory." Sure - but how? Our new paper led by former lab member @philippmusfeld.bsky.social shines new light on this question, and challenges some longstanding assumptions. Now published in Perspectives on Psychological Science.
journals.sagepub.com/doi/10.1177/...

03.02.2026 16:00 β€” πŸ‘ 11    πŸ” 7    πŸ’¬ 1    πŸ“Œ 0
Feature and space-based interference with functionally active and passive items in working memory Functionally active and passive states in working memory have been related to different neural mechanisms. Memoranda in active states might be maintained by persistent neural firing, whereas memoranda in passive states might be maintained through short-term synaptic plasticity. We reasoned that this might make these items differentially susceptible to interference during maintenance, in particular that passively maintained items might be more robust. To test this hypothesis, we gave our participants a working memory task in which one item was prioritised (active) by always probing it first, while the other item was deprioritised (passive) by always probing it second. In two experiments, on half the trials, we presented an interfering task during memory maintenance, in which the stimuli matched either the feature dimension of the memory items (colour or orientation), or their spatial location. Whether the interfering task appeared on a given trial was unpredictable. In a third experiment where participants were given prior knowledge of the interference condition, and finally in a fourth experiment we used a reward-based prioritisation cue. Across experiments, we found that both active and passive memory items were affected by interference to a similar extent, with overall performance being closely matched in all experiments. We further investigated precision and probability of target response parameters from the standard mixture model, which also showed no differences between states. We conclude that active and passive items, although potentially stored in different neuronal states, do not show differential susceptibility to interference. ### Competing Interest Statement The authors have declared no competing interest.

πŸŽ‰ My first first-author paper was just accepted in JEP:HPP! We asked what β€œactive” vs β€œpassive” WM states do - do they protect against interference? Across 4 behavioural experiments we find no reliable protection. Updated preprint here: doi.org/10.1101/2024.02.05.578913 @elkanakyurek.bsky.social

27.01.2026 16:23 β€” πŸ‘ 17    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0

Are you interested in adding Bayesian analyses to your next project so you can finally start interpreting your null results? Then join us tomorrow where Dr. Johnny van Doorn from @jaspstats.bsky.social will give a workshop how easy Bayesian stats can be using JASP! Sign up below!

25.01.2026 19:04 β€” πŸ‘ 11    πŸ” 7    πŸ’¬ 0    πŸ“Œ 1
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Ignorance is bliss: Exploring the dual role of knowledge in event segmentation - Psychonomic Bulletin & Review Episodic memories are segmented. This study explores the dual role of prior knowledge in event segmentation, hypothesizing that knowledge leads to coarser segmentation when experiences align with it, ...

How does prior knowledge affect the way we experience the world?

In our new paper, we show that prior knowledge can both increase and decrease how often experience is segmented into events.

link.springer.com/article/10.3...

21.01.2026 11:02 β€” πŸ‘ 13    πŸ” 7    πŸ’¬ 1    πŸ“Œ 0

πŸŽ‰ New preprint πŸŽ‰ with Olya Bulatova, @drmack.bsky.social & @keisukefukuda.bsky.social! We decode shapes in working memory from EEG and show that representations are task-dependent, flexibly integrating information about category and task during the memory delay

21.01.2026 18:22 β€” πŸ‘ 32    πŸ” 10    πŸ’¬ 0    πŸ“Œ 1
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It won't actually exist for another month or so, but because it now 'exists' on amazon, I'll humbly observe that, after working through this book, your student/trainee would be able to read and understand all but two or three papers in this week's J. Neurosci. Check it out:

16.01.2026 22:38 β€” πŸ‘ 131    πŸ” 38    πŸ’¬ 5    πŸ“Œ 0
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In defense of thinking Writing to retain the practice of thought

I do my most considered thinking when I am writing. In an effort to think more, I've started a blog to write on whatever has my attention. It's a reminder to myself to keep thinking and discovering; maybe it will serve the same purpose for others to preserve their desire and time to think.

10.01.2026 05:39 β€” πŸ‘ 16    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0
Postdoctoral Fellow Visual Attention Lab Site: The Brigham and Women's Hospital, Inc. Mass General Brigham relies on a wide range of professionals, including doctors, nurses, business people, tech experts, researchers, and systems analysts t...

We are officially in search of a PostDoc to join the Visual Attention Lab at BWH and affiliation with HMS under PI Dr. Jeremy Wolfe!

Please see attached link for more details and post around! We are excited to hear from you!

massgeneralbrigham.wd1.myworkdayjobs.com/MGBExternal/...

12.01.2026 15:19 β€” πŸ‘ 8    πŸ” 9    πŸ’¬ 0    πŸ“Œ 1

Our paper is now available online! Check out the Kudos summary here:
link.growkudos.com/1ed9uhpo8w0

30.12.2025 18:25 β€” πŸ‘ 6    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Research Specialist The Attention, Distractions, and Memory (ADAM) Lab at Rice University is recruiting a full-time Research Specialist (Research Specialist I). The ADAM Lab (PI: Kirsten Adam) conducts cognitive neurosci...

The ADAM lab is hiring a Research Specialist to join us! This role involves conducting human subjects research (EEG experiments on attention + working memory) and assisting with the execution and administration of ongoing projects.

Job posting: emdz.fa.us2.oraclecloud.com/hcmUI/Candid...

02.01.2026 15:21 β€” πŸ‘ 11    πŸ” 14    πŸ’¬ 0    πŸ“Œ 0
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OpenWMData A collection of publicly available working memory datasets

Make it your New Year resolution to add a #workingmemory dataset to OpenWMData so that we can curate our field's precious data, start testing theories and benchmarking models across datasets, conduct secondary analyses and meta-research using the data itself, and help me feel like I'm, like, alive.

02.01.2026 04:37 β€” πŸ‘ 28    πŸ” 15    πŸ’¬ 1    πŸ“Œ 0
Photo of Daniel J. Simons with the One World Cognitive Psychology Seminar Series logo against a light blue background with a white globe.Β 

Photo of Daniel J. Simons with the One World Cognitive Psychology Seminar Series logo against a light blue background with a white globe.Β 

Registration is now open for the upcoming One World Seminar, "Inattentional blindness in and out of the lab," presented by Daniel J. Simons on February 26: buff.ly/Oz2S1Hk

05.01.2026 18:02 β€” πŸ‘ 3    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
OSF

New preprint alert! πŸ“’ Event segmentation allows us to parse continuous experience into meaningful events. Working memory (WM) is suggested to play a key role in this process, but how?

osf.io/preprints/ps...

31.12.2025 14:41 β€” πŸ‘ 3    πŸ” 4    πŸ’¬ 1    πŸ“Œ 1

Happy to share a new chapter of my academic journey: as a DAAD PRIME fellow, I’ve recently joined the @dondersinst.bsky.social 🧠

Grateful for this opportunity & looking forward to what’s ahead! Get in touch if you’d like to connect!

#CognitiveNeuroscience #AcademicLife #WomenInScience

23.12.2025 17:47 β€” πŸ‘ 19    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

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