Yannick Morvan
@ymorvan.bsky.social
560 followers 1.1K following 31 posts
Psychologist PhD - Professor Université Paris Nanterre / Associate researcher Inserm CESP - Clinical FSEF & St-Anne Hospital - SHU - C3RP
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Reposted by Yannick Morvan
wiringthebrain.bsky.social
Henry’s thesis is on: “Developing a Naturalistic Metaphysics for Biological Agency”. His goal (our goal in working together) was to show that there’s nothing unscientific or supernatural about ideas of agency, mental causation, and free will. ⬇️ (1/n)
wiringthebrain.bsky.social
Huge congratulations to Dr. Henry Potter!!! 😊👏🎉🍾
Reposted by Yannick Morvan
metadechoc.bsky.social
LA FICTION, TERRAIN DE JEU NEW AGE ? - STREAM (table-ronde)

Peut-être adorez-vous la saga Avatar, ou bien y êtes-vous indifférent•e ?
Mais avez-vous repéré les messages spirituels que James Cameron y a semés de manière plus ou moins subtile ?

#ScienceFiction 👇🏼

youtu.be/J1ZFSKiufx4
Reposted by Yannick Morvan
psyarxivbot.bsky.social
The Open Science Movement and Clinical Psychology Training: Rigorous Science is Transparent Science: https://osf.io/s46wd
Reposted by Yannick Morvan
kevinmking.bsky.social
Despite heroic efforts by a small cadre of people in the field, the vast majority of senior PIs in clinical psychology continue to be uninterested or hostile to OS practices.

It makes me think they just don't care, and it's really depressing.
jdmiller.bsky.social
New paper led by @drlynam.bsky.social on the need for more training in and engagement with open science practices in clinical psych programs. It has been difficult to make progress due to a variety of barriers, including students working in labs uninterested or hostile to these approaches.
psyarxivbot.bsky.social
The Open Science Movement and Clinical Psychology Training: Rigorous Science is Transparent Science: https://osf.io/s46wd
ymorvan.bsky.social
Hi Eiko, this is very nice and love to see all the people you shared thoughts with ! Maybe you’ll find the R Package Bibliometrix nice to play with www.bibliometrix.org/home/
Bibliometrix - Home
www.bibliometrix.org
Reposted by Yannick Morvan
miriforbes.bsky.social
Look no further for an *excellent* overview of HiTOP! This chapter for the upcoming Oxford Handbook of Dimensional Models in Psychopathology does a fantastic job of pulling everything together.

Tam Pham is an absolute superstar and I feel very lucky to work with her ✨

osf.io/preprints/ps...
An adapted version of the current HiTOP model, including 'psychosis' and 'emotional dysfunction' superspectra and omitting the homogeneous symptom component/maladaptive traits lists
Reposted by Yannick Morvan
eikofried.bsky.social
Intervening on a central node in a network likely does little given that its connected neighbors will "flip it back" immediately. Happy to see this position supported now.

"Change is most likely [..] if it spreads first among relatively poorly connected nodes."

www.nature.com/articles/s41...
Transformation starts at the periphery of networks where pushback is less - Scientific Reports
Scientific Reports - Transformation starts at the periphery of networks where pushback is less
www.nature.com
Reposted by Yannick Morvan
severhel.bsky.social
💻👧👦 Enfants et numérique : que retenir du dernier rapport de l’OCDE ?

Le numérique n’est ni bon ni mauvais en soi. Il ouvre des opportunités immenses pour apprendre, s’informer, rester connecté…mais comporte aussi des risques sérieux pour la santé mentale,

www.oecd.org/fr/publicati...
Full Report
Les enfants grandissent aujourd’hui dans un univers en mutation rapide, où les médias numériques occupent une place importante dans leur vie quotidienne. Les services numériques peuvent être mis à pro...
www.oecd.org
Reposted by Yannick Morvan
olivia.science
Finally! 🤩 Our position piece: Against the Uncritical Adoption of 'AI' Technologies in Academia:
doi.org/10.5281/zeno...

We unpick the tech industry’s marketing, hype, & harm; and we argue for safeguarding higher education, critical
thinking, expertise, academic freedom, & scientific integrity.
1/n
Abstract: Under the banner of progress, products have been uncritically adopted or
even imposed on users — in past centuries with tobacco and combustion engines, and in
the 21st with social media. For these collective blunders, we now regret our involvement or
apathy as scientists, and society struggles to put the genie back in the bottle. Currently, we
are similarly entangled with artificial intelligence (AI) technology. For example, software updates are rolled out seamlessly and non-consensually, Microsoft Office is bundled with chatbots, and we, our students, and our employers have had no say, as it is not
considered a valid position to reject AI technologies in our teaching and research. This
is why in June 2025, we co-authored an Open Letter calling on our employers to reverse
and rethink their stance on uncritically adopting AI technologies. In this position piece,
we expound on why universities must take their role seriously toa) counter the technology
industry’s marketing, hype, and harm; and to b) safeguard higher education, critical
thinking, expertise, academic freedom, and scientific integrity. We include pointers to
relevant work to further inform our colleagues. Figure 1. A cartoon set theoretic view on various terms (see Table 1) used when discussing the superset AI
(black outline, hatched background): LLMs are in orange; ANNs are in magenta; generative models are
in blue; and finally, chatbots are in green. Where these intersect, the colours reflect that, e.g. generative adversarial network (GAN) and Boltzmann machine (BM) models are in the purple subset because they are
both generative and ANNs. In the case of proprietary closed source models, e.g. OpenAI’s ChatGPT and
Apple’s Siri, we cannot verify their implementation and so academics can only make educated guesses (cf.
Dingemanse 2025). Undefined terms used above: BERT (Devlin et al. 2019); AlexNet (Krizhevsky et al.
2017); A.L.I.C.E. (Wallace 2009); ELIZA (Weizenbaum 1966); Jabberwacky (Twist 2003); linear discriminant analysis (LDA); quadratic discriminant analysis (QDA). Table 1. Below some of the typical terminological disarray is untangled. Importantly, none of these terms
are orthogonal nor do they exclusively pick out the types of products we may wish to critique or proscribe. Protecting the Ecosystem of Human Knowledge: Five Principles
Reposted by Yannick Morvan
ploederl.bsky.social
Massive paper on scientific fraud. The first author made a summary with his personal reflections here:
reeserichardson.blog/2025/08/04/a...
Reposted by Yannick Morvan
Reposted by Yannick Morvan
psyarxivbot.bsky.social
Experienced, bothered by, or both: People differ in how they understand the Patient Health Questionnaire (PHQ) items: https://doi.org/10.31234/osf.io/jcsq8_v1
Reposted by Yannick Morvan
omidvebrahimi.bsky.social
Asking whether living in cities affects mental health is too simplistic.

In 500,000 adults, we find no universal urbanicity–mental disorder link.

Cities worldwide include very different living conditions & characteristics.

We need to identify which aspects of urban life harm or protect well-being
omidvebrahimi.bsky.social
How does where we live – urban, rural, or in-between – relate to our mental health? 🌆🏞️

In this cross-national study, we investigate the links between urbanicity, anxiety and depressive disorders in 500,000 adults across the UK, Norway, and New Zealand 🧵

www.sciencedirect.com/science/arti...
Reposted by Yannick Morvan
joelbillieux.bsky.social
Ready for #ICBA2025 in Nantes ! I will among other co-chair with Loïs Fournier the Session 4A: Is the components model of addiction truly valid in the context of behavioral addictions? (Auditorium, 8 July, 13h30).

Teaser 😇 : slide taken from my talk + detailed program of this sympo
Reposted by Yannick Morvan
shirleybwang.bsky.social
Almost exactly one year after starting my lab (!), I'm thrilled to share our first preprint! 🥳 @leilyb.bsky.social @sharinahamm.bsky.social @francesghart.bsky.social

We propose future directions for mathematical, computational, & digital methods to advance suicide research: osf.io/preprints/ps...
Reposted by Yannick Morvan
lucy-h-butler.bsky.social
A 2023 NHB paper concluded that corrections of science-relevant misinformation are, on average, ineffective. Our response (in press) challenges this conclusion, showing why corrections *are* effective, and why considering measurement is important:
🔗 osf.io/preprints/ps...
(1/5)
OSF
osf.io
Reposted by Yannick Morvan
psmaldino.bsky.social
This was a fun paper to write (published 5 years ago now). Here's a non-paywalled preprint version. osf.io/preprints/me...

For way more on the subject, see the whole-ass book I wrote. press.princeton.edu/books/paperb...
Reposted by Yannick Morvan
sachaepskamp.bsky.social
Happy to share that our article, led by @xinkaidu.bsky.social, on confirmatory network modeling has been published in Psychological Methods!

psycnet.apa.org/record/2026-...
APA PsycNet
psycnet.apa.org
Reposted by Yannick Morvan
franckramus.bsky.social
Droit de réponse à "l'enquête" de Marie Dupin, Cellule investigation de Radio France, France Info:
ramus-meninges.fr/2025/06/20/d...
Reposted by Yannick Morvan
floriannaudet.bsky.social
Super happy to be interviewed by David Larousserie in @lemonde.fr about @jamesheathers.bsky.social's great initiative "The Medical Evidence Project" in line with @retractionwatch.com. By the way, James, we need to get in touch about that and the ResToRes Research integrity in biomedical research.
Un projet pour « nettoyer » la littérature médicale des études douteuses
Dans la lutte contre les fraudes scientifiques, une initiative américaine, The Medical Evidence Project, a récemment été lancée.
www.lemonde.fr
Reposted by Yannick Morvan
ioanaacristea.bsky.social
Exactly and there is nothing polemic about that. Single case experiments are not only relevant theoretically and pragmatically (they do provide causal evidence after all) but they also force all sorts of useful things like operationalization, breaking up behavior in components etc
tkaiser.science
Side note, also somewhat polemical: before psychology students get permission to do cross-sectional questionnaire studies and mediate the hell out of the data, they should have to run a SCED, no matter how trivial its content. Simply to see what real psychological effects can look like.
Reposted by Yannick Morvan
ymorvan.bsky.social
This paper is of huge importance to me. It shows a very compelling case of a distort relation between science and policymaking. We all need to be careful on such issues ! Thanks to the authors for this piece 🙏
floriannaudet.bsky.social
🧵1/ Today we’re sharing an important article we co-authored with François Gonon, Henry Gouraud, André Gillibert, Bruno Falissard, Lisa Cosgrove, Kasper Kepp & Ioana Cristea.
It’s about how selective use of science can distort policymaking—even in public health.
Advocacy by nonprofit scientific institutions needs to be evidence-based: a case study
Scientific institutions, including universities and research centers, occasionally engage in advocacy to gain financial support. However, this can be …
www.sciencedirect.com