Erik Bijleveld
@erikbij.bsky.social
Associate Professor at Radboud University. I post about mental effort and mental fatigue. https://www.bveld.info
Reposted by Erik Bijleveld
We built the openESM database:
▶️60 openly available experience sampling datasets (16K+ participants, 740K+ obs.) in one place
▶️Harmonized (meta-)data, fully open-source software
▶️Filter & search all data, simply download via R/Python
Find out more:
🌐 openesmdata.org
📝 doi.org/10.31234/osf...
▶️60 openly available experience sampling datasets (16K+ participants, 740K+ obs.) in one place
▶️Harmonized (meta-)data, fully open-source software
▶️Filter & search all data, simply download via R/Python
Find out more:
🌐 openesmdata.org
📝 doi.org/10.31234/osf...
October 22, 2025 at 7:34 PM
We built the openESM database:
▶️60 openly available experience sampling datasets (16K+ participants, 740K+ obs.) in one place
▶️Harmonized (meta-)data, fully open-source software
▶️Filter & search all data, simply download via R/Python
Find out more:
🌐 openesmdata.org
📝 doi.org/10.31234/osf...
▶️60 openly available experience sampling datasets (16K+ participants, 740K+ obs.) in one place
▶️Harmonized (meta-)data, fully open-source software
▶️Filter & search all data, simply download via R/Python
Find out more:
🌐 openesmdata.org
📝 doi.org/10.31234/osf...
2-year postdoc in our team, supervised by Laura Fruhen and Tirza van Noorden.
www.ru.nl/en/working-a...
www.ru.nl/en/working-a...
Postdoc Position: Workplace Communication and Employee Wellbeing | Radboud University
Do you want to work as a Postdoc: Workplace Communication and Employee Wellbeing at the Faculty of Social Sciences? Check our vacancy!
www.ru.nl
October 15, 2025 at 7:28 AM
2-year postdoc in our team, supervised by Laura Fruhen and Tirza van Noorden.
www.ru.nl/en/working-a...
www.ru.nl/en/working-a...
Reposted by Erik Bijleveld
Motivation and Emotion is seeking a new Editor-in-Chief! 4-year term starting Jan 2025. Looking for someone with vision, experience in motivation/emotion research, and editorial chops. Deadline: Aug 1. Ready to shape the field? Details: morgan.ryan@springer.com
June 25, 2025 at 12:53 PM
Motivation and Emotion is seeking a new Editor-in-Chief! 4-year term starting Jan 2025. Looking for someone with vision, experience in motivation/emotion research, and editorial chops. Deadline: Aug 1. Ready to shape the field? Details: morgan.ryan@springer.com
In our new RR, we will test whether and how mental fatigue impacts dishonesty:
rr.peercommunityin.org/PCIRegistere...
I am already excited about the to-be-collected data.
Nice work led by Mara Bialas 👏 (also with @maartenboksem.bsky.social)
rr.peercommunityin.org/PCIRegistere...
I am already excited about the to-be-collected data.
Nice work led by Mara Bialas 👏 (also with @maartenboksem.bsky.social)
June 17, 2025 at 8:27 PM
In our new RR, we will test whether and how mental fatigue impacts dishonesty:
rr.peercommunityin.org/PCIRegistere...
I am already excited about the to-be-collected data.
Nice work led by Mara Bialas 👏 (also with @maartenboksem.bsky.social)
rr.peercommunityin.org/PCIRegistere...
I am already excited about the to-be-collected data.
Nice work led by Mara Bialas 👏 (also with @maartenboksem.bsky.social)
Reposted by Erik Bijleveld
ashamedly i've never tried this (from Kahneman's 1973 'Attention and Effort')
May 7, 2025 at 1:47 PM
ashamedly i've never tried this (from Kahneman's 1973 'Attention and Effort')
Reposted by Erik Bijleveld
Day-to-day fluctuations in motivation drive effort-based decision-making www.pnas.org/doi/full/10....
May 5, 2025 at 3:35 PM
Day-to-day fluctuations in motivation drive effort-based decision-making www.pnas.org/doi/full/10....
Reposted by Erik Bijleveld
You do not need to be Dutch to sign. If you simply care to preserve programs that have been leaders in rigor and reform in psychology, then signal your support for them to continue to thrive.
An open letter supporting the international bachelor’s psychology programs threatened for cuts. Proceeding with these cuts would damage some of the most important and impactful psychology departments globally. #supportdutchpsychology
openletter.earth/against-lang...
openletter.earth/against-lang...
Against Language Barriers: A Call to Protect International Education in Dutch Academia
openletter.earth
April 29, 2025 at 11:51 AM
You do not need to be Dutch to sign. If you simply care to preserve programs that have been leaders in rigor and reform in psychology, then signal your support for them to continue to thrive.
Reposted by Erik Bijleveld
New paper in JESP: "On rewarded actions and punishment-avoidant inactions: The action–valence asymmetry in face perception.”
In four preregistered experiments, we show that inactions influence evaluations of faces. (1/5)
www.sciencedirect.com/science/arti...
In four preregistered experiments, we show that inactions influence evaluations of faces. (1/5)
www.sciencedirect.com/science/arti...
On rewarded actions and punishment-avoidant inactions: The action–valence asymmetry in face perception
Although social interactions are ubiquitous, people often choose not to interact with others—for example, people may choose to not greet a stranger, t…
www.sciencedirect.com
April 16, 2025 at 9:47 AM
New paper in JESP: "On rewarded actions and punishment-avoidant inactions: The action–valence asymmetry in face perception.”
In four preregistered experiments, we show that inactions influence evaluations of faces. (1/5)
www.sciencedirect.com/science/arti...
In four preregistered experiments, we show that inactions influence evaluations of faces. (1/5)
www.sciencedirect.com/science/arti...
"First, the idea that a few minutes of self-control can leave you unable to resist temptation later has been thoroughly debunked. What remains is something far more mundane: fatigue."
Roy Baumeister called ego depletion "one of the most replicable findings in social psychology." As someone who spent 20 years studying it—and ultimately had to admit it wasn't real—I have to respectfully disagree. Here's my perspective of what went so wrong.
The Collapse of Ego Depletion
Science's Biggest Self-Control Failure
open.substack.com
February 14, 2025 at 10:42 AM
"First, the idea that a few minutes of self-control can leave you unable to resist temptation later has been thoroughly debunked. What remains is something far more mundane: fatigue."
Reposted by Erik Bijleveld
Forthcoming at JEP: General is some more work from my dissertation. Over three experiments we test a popular model of cognitive effort aversion—the opportunity cost model, first proposed by Kurzban et al. (2013)—and find negligible support for its primary predictions. osf.io/preprints/ps...
February 13, 2025 at 12:28 AM
Forthcoming at JEP: General is some more work from my dissertation. Over three experiments we test a popular model of cognitive effort aversion—the opportunity cost model, first proposed by Kurzban et al. (2013)—and find negligible support for its primary predictions. osf.io/preprints/ps...
Reposted by Erik Bijleveld
'Since the establishment of that template, this norm of the 40-hour working week, Monday to Friday, we see that not much has changed'
February 4, 2025 at 8:34 AM
'Since the establishment of that template, this norm of the 40-hour working week, Monday to Friday, we see that not much has changed'
Reposted by Erik Bijleveld
I'm excited to share a new preprint: In a novel experimental paradigm, we found evidence that stress induces a computational bias during alcohol-related decision-making in favor of alcohol, but this bias was only sometimes strong enough to overcome competing considerations (e.g., taste preferences).
How people decide to consume (more) alcohol when feeling stressed: http://osf.io/c7q9p/
January 14, 2025 at 4:45 PM
I'm excited to share a new preprint: In a novel experimental paradigm, we found evidence that stress induces a computational bias during alcohol-related decision-making in favor of alcohol, but this bias was only sometimes strong enough to overcome competing considerations (e.g., taste preferences).
Reposted by Erik Bijleveld
Since our first commissioning meeting my team and I have wanted to publish something about the tension between basic vs. applied research.
And now we have.
Please check out this must-read piece on the need to place greater value on applied research with concrete suggestions for how to do so 👇
And now we have.
Please check out this must-read piece on the need to place greater value on applied research with concrete suggestions for how to do so 👇
Applied research is the path to legitimacy in psychological science
Comment by Judith P. Andersen
Web: go.nature.com/41qmccZ
PDF: rdcu.be/d2XLq
Comment by Judith P. Andersen
Web: go.nature.com/41qmccZ
PDF: rdcu.be/d2XLq
December 9, 2024 at 7:44 PM
Since our first commissioning meeting my team and I have wanted to publish something about the tension between basic vs. applied research.
And now we have.
Please check out this must-read piece on the need to place greater value on applied research with concrete suggestions for how to do so 👇
And now we have.
Please check out this must-read piece on the need to place greater value on applied research with concrete suggestions for how to do so 👇
Reposted by Erik Bijleveld
New large study (n ~ 6 million) in @JAMApsych tracking mental disorder trends in Denmark showing increases in mood disorders in recent birth cohorts tinyurl.com/c5nyfd8k
November 27, 2024 at 9:08 PM
New large study (n ~ 6 million) in @JAMApsych tracking mental disorder trends in Denmark showing increases in mood disorders in recent birth cohorts tinyurl.com/c5nyfd8k
Reposted by Erik Bijleveld
📢 Call for Papers: Special Issue on Boredom! 📢
Boredom signals unsatisfactory interactions with our inner & outer worlds. For HSSComms, @corimartarelli.bsky.social & I are editing a collection exploring it through diverse lenses & methods 🤩
➡️ www.nature.com/collections/...
pls share liberally 🙏
Boredom signals unsatisfactory interactions with our inner & outer worlds. For HSSComms, @corimartarelli.bsky.social & I are editing a collection exploring it through diverse lenses & methods 🤩
➡️ www.nature.com/collections/...
pls share liberally 🙏
The dynamics of boredom
This Collection aims to advance our theoretical understanding of boredom, improve the methods used to study boredom, and consider practical applications for ...
www.nature.com
November 15, 2024 at 2:51 PM
📢 Call for Papers: Special Issue on Boredom! 📢
Boredom signals unsatisfactory interactions with our inner & outer worlds. For HSSComms, @corimartarelli.bsky.social & I are editing a collection exploring it through diverse lenses & methods 🤩
➡️ www.nature.com/collections/...
pls share liberally 🙏
Boredom signals unsatisfactory interactions with our inner & outer worlds. For HSSComms, @corimartarelli.bsky.social & I are editing a collection exploring it through diverse lenses & methods 🤩
➡️ www.nature.com/collections/...
pls share liberally 🙏
Reposted by Erik Bijleveld
The unfathomable richness of seeing: http://osf.io/jmg35/
April 19, 2024 at 7:52 PM
The unfathomable richness of seeing: http://osf.io/jmg35/
Clark Hull usually gets credit for coming up with "law of less work" (or the "law of least effort") in 1943.
I recently learned that the Chinese psychologist Loh-Seng Tsai published the same idea 11 years before Hull.
🧵Short history thread (1/5):
I recently learned that the Chinese psychologist Loh-Seng Tsai published the same idea 11 years before Hull.
🧵Short history thread (1/5):
January 31, 2024 at 8:43 AM
Clark Hull usually gets credit for coming up with "law of less work" (or the "law of least effort") in 1943.
I recently learned that the Chinese psychologist Loh-Seng Tsai published the same idea 11 years before Hull.
🧵Short history thread (1/5):
I recently learned that the Chinese psychologist Loh-Seng Tsai published the same idea 11 years before Hull.
🧵Short history thread (1/5):
Reposted by Erik Bijleveld
I'm elated to share my PhD keystone paper published
@PNAS
www.pnas.org/doi/10.1073/... I've poured my heart & soul into this project since 2016 (8 yrs!) & I'm happy to introduce the Effort Foraging Task to the world #CognitivePsychology #Motivation #Effort #Foraging #DecisionMaking 🧵
@PNAS
www.pnas.org/doi/10.1073/... I've poured my heart & soul into this project since 2016 (8 yrs!) & I'm happy to introduce the Effort Foraging Task to the world #CognitivePsychology #Motivation #Effort #Foraging #DecisionMaking 🧵
January 26, 2024 at 5:58 PM
I'm elated to share my PhD keystone paper published
@PNAS
www.pnas.org/doi/10.1073/... I've poured my heart & soul into this project since 2016 (8 yrs!) & I'm happy to introduce the Effort Foraging Task to the world #CognitivePsychology #Motivation #Effort #Foraging #DecisionMaking 🧵
@PNAS
www.pnas.org/doi/10.1073/... I've poured my heart & soul into this project since 2016 (8 yrs!) & I'm happy to introduce the Effort Foraging Task to the world #CognitivePsychology #Motivation #Effort #Foraging #DecisionMaking 🧵
Reposted by Erik Bijleveld
New paper from the SCAN-Unit! How does acute stress impact effortful prosocial behaviour? @elife.bsky.social Forbes et al. elifesciences.org/articles/87271 1/8
Acute stress reduces effortful prosocial behaviour
Participants under acute stress were less willing to exert a relatively low level of physical effort for actions that benefit another person compared to actions that benefit themselves.
elifesciences.org
January 9, 2024 at 10:39 AM
New paper from the SCAN-Unit! How does acute stress impact effortful prosocial behaviour? @elife.bsky.social Forbes et al. elifesciences.org/articles/87271 1/8
Reposted by Erik Bijleveld
Big 2024 announcement! The “Guide to Effect Sizes and Confidence Intervals” had a pretty substantial update and is slowly becoming the most comprehensive resource on effect sizes and confidence intervals. Here is a thread of some of the new additions 1/5 t.co/ByeSMQNJdp
Guide to Effect Sizes and Confidence Intervals
t.co
January 2, 2024 at 3:09 AM
Big 2024 announcement! The “Guide to Effect Sizes and Confidence Intervals” had a pretty substantial update and is slowly becoming the most comprehensive resource on effect sizes and confidence intervals. Here is a thread of some of the new additions 1/5 t.co/ByeSMQNJdp
Reposted by Erik Bijleveld
‚Science Advances‘ published our paper in which we asked:
"Where does all the sugar go in the brain?"
doi.org/10.1126/scia...
Short answer and 4 main findings in 🧵 below.
#funding: ERC_Research
#neuroskyence
"Where does all the sugar go in the brain?"
doi.org/10.1126/scia...
Short answer and 4 main findings in 🧵 below.
#funding: ERC_Research
#neuroskyence
December 26, 2023 at 2:11 PM
‚Science Advances‘ published our paper in which we asked:
"Where does all the sugar go in the brain?"
doi.org/10.1126/scia...
Short answer and 4 main findings in 🧵 below.
#funding: ERC_Research
#neuroskyence
"Where does all the sugar go in the brain?"
doi.org/10.1126/scia...
Short answer and 4 main findings in 🧵 below.
#funding: ERC_Research
#neuroskyence
Oh, wait, Bartley and Chute said this already *in 1945*.
December 8, 2023 at 6:53 PM
Oh, wait, Bartley and Chute said this already *in 1945*.
I sometimes try to publish in work psych journals, and this is in line with my experiences:
"Unfortunately, journals in industrial, work, and organizational psychology still fail to support Open Science practices"
open.lnu.se/index.php/me...
"Unfortunately, journals in industrial, work, and organizational psychology still fail to support Open Science practices"
open.lnu.se/index.php/me...
November 24, 2023 at 8:41 AM
I sometimes try to publish in work psych journals, and this is in line with my experiences:
"Unfortunately, journals in industrial, work, and organizational psychology still fail to support Open Science practices"
open.lnu.se/index.php/me...
"Unfortunately, journals in industrial, work, and organizational psychology still fail to support Open Science practices"
open.lnu.se/index.php/me...
Reposted by Erik Bijleveld
Replication of the original experiments on the “Effort Heuristic” (higher liking, and perceived higher quality and monetary value for goods that take more effort to produce) finds at best mixed results: buff.ly/3Ms53ar HT @giladfeldman.bsky.social
November 12, 2023 at 1:09 PM
Replication of the original experiments on the “Effort Heuristic” (higher liking, and perceived higher quality and monetary value for goods that take more effort to produce) finds at best mixed results: buff.ly/3Ms53ar HT @giladfeldman.bsky.social