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Posts by Kimberly Chiew

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PhD researcher for the project: Cognitive Control and Multitasking in the Digital Age We are looking for a motivated PhD researcher to study the behavioral and neural dynamics between cognitive control and multitasking in young and aging populations.

We’re hiring!
Interested in conducting research on cognitive control, multitasking and aging with @gethinhughes.bsky.social, @sarahdepue.bsky.social and me?
We are looking for a PhD candidate to join our lab @cogtex.bsky.social at KU Leuven.
RTs much appreciated!
www.kuleuven.be/personeel/jo...

1 week ago 17 18 0 2

So sorry to hear this. I really enjoyed hearing about your work at your DU talk, and also appreciated our chat about motivation when I shared my work at Columbia. Rooting for you and hoping for the best possible outcome.

1 week ago 2 0 1 0
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Extreme Temperatures Fueling Teen Depression | University of Denver

Erika Manczak, associate professor of psychology in the College of Arts, Humanities, and Social Sciences, is leading innovative research into the effects of extreme temperatures on mental healthβ€”especially in children.

Read more: https://bit.ly/4uEtwOk πŸ”¬

1 month ago 3 1 0 0

πŸ™Œ πŸ§ πŸ‘©πŸ»β€πŸ”¬ πŸ’•

1 week ago 1 0 0 0
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CAMP Lab | about The CAMP Lab at the University of Iowa uses computational, neuroimaging, pharmacological, and neuromodulation approaches to understand motivation, affect, and decision-making β€” and how these processes...

I'm SO pleased to announce that I'll be starting as an Asst Prof at @psychiowa.bsky.social this August.

The lab will focus on neural & computational mechanisms of motivation, affect, & decision-making, with the aspirational goal of translation to neuropsychiatric disorders. 🧠
yeelabneuro.com

2 weeks ago 137 18 26 1

On Wednesday March 25!

1 month ago 4 5 0 0
Chiew et al. Poster D18 Monday March 9 at 8am
Reward and punishment motivation both promote cognitive performance and memory formation, but may do so by separable neuromodulatory systems leading to distinct profiles of cognitive effort and memory representations. Specifically, reward motivation has been linked to ventral tegmental area (VTA)/dopaminergic activity while punishment has been linked to locus coeruleus (LC)/norepinephrine activity, with both neuromodulator pathways altering activity in cortical regions key to cognition. Reward has been suggested to enhance memory both through enhanced attention at encoding as well as via post-encoding consolidation, but the extent to which reward-motivated memory is predicted by task engagement at encoding is unclear. Further, little is known about how attention at encoding, vs. post-encoding processes, might contribute to punishment-motivated memory. To compare motivated cognitive control performance and downstream memory under reward and punishment contexts, we conducted an fMRI study examining reward- vs. punishment-motivated performance in a face-word Stroop paradigm (valence between-groups; N=48 young adults each), and tested the extent to which motivational context and task performance at encoding predicted incidental 24-hour memory for face stimuli from the Stroop paradigm. Preliminary behavioral data indicate expected conflict effects as well as distinct effects of reward and punishment on Stroop performance, whereby incentive-related speeding was greater under reward. Planned analyses will examine trial-level item and source memory as a function of motivational context, task conflict, and Stroop performance, as well as examining the extent to which reward vs. punishment-motivated performance are linked with activity in neuromodulatory nuclei and in prefrontal/hippocampal regions critical for cognitive control and memory encoding.

Chiew et al. Poster D18 Monday March 9 at 8am Reward and punishment motivation both promote cognitive performance and memory formation, but may do so by separable neuromodulatory systems leading to distinct profiles of cognitive effort and memory representations. Specifically, reward motivation has been linked to ventral tegmental area (VTA)/dopaminergic activity while punishment has been linked to locus coeruleus (LC)/norepinephrine activity, with both neuromodulator pathways altering activity in cortical regions key to cognition. Reward has been suggested to enhance memory both through enhanced attention at encoding as well as via post-encoding consolidation, but the extent to which reward-motivated memory is predicted by task engagement at encoding is unclear. Further, little is known about how attention at encoding, vs. post-encoding processes, might contribute to punishment-motivated memory. To compare motivated cognitive control performance and downstream memory under reward and punishment contexts, we conducted an fMRI study examining reward- vs. punishment-motivated performance in a face-word Stroop paradigm (valence between-groups; N=48 young adults each), and tested the extent to which motivational context and task performance at encoding predicted incidental 24-hour memory for face stimuli from the Stroop paradigm. Preliminary behavioral data indicate expected conflict effects as well as distinct effects of reward and punishment on Stroop performance, whereby incentive-related speeding was greater under reward. Planned analyses will examine trial-level item and source memory as a function of motivational context, task conflict, and Stroop performance, as well as examining the extent to which reward vs. punishment-motivated performance are linked with activity in neuromodulatory nuclei and in prefrontal/hippocampal regions critical for cognitive control and memory encoding.

I will be presenting "Comparing effects of reward and punishment motivational contexts on cognitive control and downstream memory" 🧠 at Poster D18 on Monday morning. It's been a long time since I've been to CNS, looking forward to it!

1 month ago 2 0 0 0
Baykal & Chiew - Poster B32 - Sunday March 8 8-10am

Adjusting cognitive performance after an error might be a key facet of adaptive cognitive control. While post-error response slowing has been reliably characterized during cognitive task performance, post-error changes in accuracy have been more variable, with both increases and decreases observed. Motivational context might be a key element in whether post-error, cognitive effort and task accuracy increase, or whether both are reduced. To address this question, we propose a study where healthy young adults will complete a modified Flanker task with adaptive noise calibration (to ensure comparable error rates across individuals) under incentive and non-incentive conditions. Concurrent with task performance, we will collect eye-tracking data to examine pupil dilation (indexing cognitive effort) and gaze allocation (indexing attention) on a trial-level basis. Predictive modeling will allow us to test the extent to which, at the trial-by-trial level, pre-error behavior and physiological measures predict post-error performance recovery across motivational contexts. We will test the hypothesis that, on a trial-by-trial basis, stronger multimodal β€œramp-up” signatures (increased post-error slowing, enhanced pupil dilation, and increased on-target gaze) will predict higher rates of adaptive recovery (post-error correct response) versus disengagement (post-error incorrect response). We further anticipate that incentives will amplify multimodal ramp-up, thereby increasing post-error adaptive recovery. We will also examine the extent to which individual differences in reward sensitivity, motivation, and emotion moderate these relationships. This approach will advance understanding of post-error adjustment and help clarify the contexts under which more or less adaptive adjustment of performance occurs, with important implications in applied domains.

Baykal & Chiew - Poster B32 - Sunday March 8 8-10am Adjusting cognitive performance after an error might be a key facet of adaptive cognitive control. While post-error response slowing has been reliably characterized during cognitive task performance, post-error changes in accuracy have been more variable, with both increases and decreases observed. Motivational context might be a key element in whether post-error, cognitive effort and task accuracy increase, or whether both are reduced. To address this question, we propose a study where healthy young adults will complete a modified Flanker task with adaptive noise calibration (to ensure comparable error rates across individuals) under incentive and non-incentive conditions. Concurrent with task performance, we will collect eye-tracking data to examine pupil dilation (indexing cognitive effort) and gaze allocation (indexing attention) on a trial-level basis. Predictive modeling will allow us to test the extent to which, at the trial-by-trial level, pre-error behavior and physiological measures predict post-error performance recovery across motivational contexts. We will test the hypothesis that, on a trial-by-trial basis, stronger multimodal β€œramp-up” signatures (increased post-error slowing, enhanced pupil dilation, and increased on-target gaze) will predict higher rates of adaptive recovery (post-error correct response) versus disengagement (post-error incorrect response). We further anticipate that incentives will amplify multimodal ramp-up, thereby increasing post-error adaptive recovery. We will also examine the extent to which individual differences in reward sensitivity, motivation, and emotion moderate these relationships. This approach will advance understanding of post-error adjustment and help clarify the contexts under which more or less adaptive adjustment of performance occurs, with important implications in applied domains.

We are excited to head to @cogneuronews.bsky.social #CNS2026 in Vancouver soon :) πŸ‡¨πŸ‡¦πŸŒŠπŸ”οΈ My lab will be presenting two posters on Sunday & Monday. Graduate student Evrim Baykal will be presenting on "Adaptive recovery under motivation" πŸ‘οΈ at Poster B32 on Sunday morning:

1 month ago 14 2 1 0
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Diverging influences of punishment motivation and negative affect on cognitive control - Cognitive, Affective, & Behavioral Neuroscience The modulation of cognitive control by threat of punishment has been under-characterized relative to examinations of reward, with mixed findings reported in the literature. Across two experiments, we ...

Journal link to final version: link.springer.com/article/10.3...

1 month ago 3 1 0 0
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Final version now in press at Cognitive, Affective & Behavioral Neuroscience! Congratulations to Rachel for her hard work on this ☺️🧠⚑
trebuchet.public.springernature.app/get_content/...

1 month ago 18 6 1 0
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Changes in our feelings, or "affective surprise," may act as a learning signal that influences what we remember. Large magnitude deviations in experienced valence during encoding relate to better long-term associative memory.

1 month ago 23 13 1 0

Hmm, we also have some null effects with precueing in the flanker that i never got around to writing up. I’ll take a look at the paper!

1 month ago 1 0 0 0

No, I wish :) but I assume you will be at APS with the award! Just CNS for me. But hope to see you again soon!

1 month ago 1 0 0 0

Yes agreed! I am going to CNS in a couple weeks, if you are going there as well as APS 😊

1 month ago 0 0 1 0

hooray!! congratulations YC, well-deserved!! 😊

1 month ago 0 0 1 0
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This Wednesday February 25! Dr. Michael Treadway (Emory University) is presenting in
@motcogmeet.bsky.social series: "Effort-Based Decision-Making and Its Discontents: Precision medicine approaches for understanding the pathophysiology and treatment of motivational deficits in mental illness" 1/

1 month ago 14 8 1 0

Congrats Dave!! πŸŽ‰

2 months ago 1 0 0 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

2 months ago 31 39 1 2

One day online conference on the ways behavioral and neural sciences can inform peace efforts. Organized by Duke's amazing @felipedebrigard.bsky.social Free! Tomorrow! (Fri Feb 6). To register see link below.

behavioralscientist.org/program-neur...

2 months ago 4 9 0 0
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DU to launch new bachelor’s degree in biomedical engineering this fall | University of Denver

The University is excited to launch a Bachelor of Science in Biomedical Engineering later this fall! πŸ”¬ https://bit.ly/46qiVfi

This new major is part of the DU Forward initiative and is designed to prepare students for #research, pre-health pathways, and careers in a range of fields.

2 months ago 3 1 0 0

Happy to chat if you like, message me. My parents met at LU ❀️

2 months ago 1 0 0 0

(Unless you’re heading to Orillia, I’m realizing)

2 months ago 1 0 1 0

My hometown!! Hope you love it. Lakehead is on the move. 😊

2 months ago 1 0 1 0

We are excited to announce our partnership with @inclivio.com's software for #SAS2026.
We’re counting down to the conference with a series of posts.
Enter a drawing for 3 EMA study licenses by liking (1 point) and reposting (3 points)!
#SAS #AffectiveScience #EMA #EmotionDynamics

3 months ago 13 12 0 1
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Why do some things stick in memory while others fade?
Next Tue, Dec 9, Alan Castel (UCLA) will be presenting in
@motcogmeet.bsky.social online talk series on β€œMemory Selectivity in Younger and Older Adults: A Value-Directed Remembering Approach.” 1/

Join us! (link below)

4 months ago 17 9 1 1
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Some of our fantastic @dupsychdept.bsky.social graduate students at #psynom25 😊

4 months ago 9 1 0 0

Hi #psynom25! Check out my grad student Rachel Brough's poster (III-150) at 6pm tonight: "Motivated Cognitive Control in Children Varying in ADHD Symptomology." This is a culmination of our big BBRF-funded study & w/ the large N, shows diff dimensions of ADHD scale w/ diff modes of control! ✨

5 months ago 9 0 0 0
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She did great!! Very cool longitudinal data you all are collecting 😊

5 months ago 1 0 0 0

4) #psynomnomnom fans - check out the denverfood reddit or
@westword.com
for eats - there are options downtown but also lots of great places in RINO/highlands just north and west of downtown

See you soon :)
@psychonomicsociety.bsky.social

5 months ago 2 1 0 0

3) For a taste of the mountains accessible from the city, check out Red Rocks Amphitheater (~25 min drive from downtown, free entry during the day, trails + music museum) www.redrocksonline.com/plan-your-vi...
2/

5 months ago 2 0 1 0