Cam Hostinar, Ph.D.

@camhostinar.bsky.social

Lifelong learner. Studying developmental psychology, Associate Professor of Psychology. Opinions are my own and do not represent my employer.

Self-help books are fascinating … how to be more disciplined (by a Navy Seal), how to be mindful (by a zen master), how to connect with others (by someone who connects well with others). Makes sense to learn from experts, but wouldn’t it also be helpful to learn from those who struggled & improved?

A really interesting finding from this study was a dissociation between affect & motivation: Stress induction increased self-administration despite the drug not actually helping people cope with the stress: no improvement in positive or negative affect (vs placebo)

Siri Leknes@sirileknes.bsky.social · last wk.

Major paper out: A heroic* demonstration that even acute stress increases drug intake in healthy people *4-session 2x2 RCT with ~4 oxycodone injections in 66 volunteers - with repeated blinded 2-panel stress/control inductions (ReSST) 1/🧵 www.nature.com/articles/s44...

Are temperament and personality the same thing? Check out our new preprint tackling this question. Led by the incomparable @kaileylawson.bsky.social, with @rebeccatheshiner.bsky.social, bsky-less Rick Robins This was such a fun one to work on with this team!

PsyArXivBot@psyarxivbot.bsky.social · 4d ago

Are Temperament and Personality Traits Sibling Constructs or Twins? Toward a Lifespan Science of Personality Development: https://osf.io/wfs94

Developmental psychopathology friends: I'm taking over and totally revamping our course for Spring – help me build a kick-ass reading list - what are your favorite recent review/perspectives articles? Self-promotions welcome! 🙏

Scientists identify five key factors linked to happiness across 66 countries (and 97,220 citizens) They find that a communitarian approach, where societies foster environments that care for others, is highly effective at boosting a nation’s overall happiness. www.psypost.org/scientists-i...,

Scientists identify five key factors linked to happiness across 66 countries

What makes a society truly happy? New research in The Journal of Positive Psychology suggests that supportive, inclusive environments boost national well-being significantly more than individualistic ...

psypost.org

Nearly four years ago we asked ourselves, "what would it look like to have a field-leading, completely free reference work for cognitive science"? It's been so fun editing OECS with @asifamajid.bsky.social and @hbaum.bsky.social. I can't believe we have published 200 (!!) articles! oecs.mit.edu

Philip Laughlin@philiplaughlin.bsky.social · 2w ago

Today's #OA spotlight is extra special. Just this week, @mitpress.bsky.social published the 200th article in our OPEN ENCYCLOPEDIA OF COGNITIVE SCIENCE. Congrats to @mcxfrank.bsky.social & @asifamajid.bsky.social! We've come far since the 2023 @cogscisociety.bsky.social in Rotterdam! oecs.mit.edu

I am curious, what do you all think is the most important life skill (if you had to name one)? I think it’s asking questions. Helps you learn more deeply, understand differing perspectives, grow, learn from others’ wisdom, find resources, and more. What is your top life-navigational skill?

The anatomy of an AI-supported academic article is becoming more apparent. I desk reviewed ~70 manuscripts this week for our journal. Reckon 20ish had significant AI assistance. On top of hundreds of others recently I'm starting to see patterns. Are other editors are seeing the same or similar? 1/

New meta by @peterhaehner.bsky.social et al (I'm a little middle author) on individual differences in personality change across the lifespan (229 studies, N = 230k) 10.1037/bul0000525 Cool finding (imo): For all Big Five, variance in change is greatest in youth, declining through young adulthood!

Individual differences in change for each of the Big Five across ages 0 to 80. The trend for each trait is that individual differences in change are decreasing with age.

I think the difficulty of understanding feedback loops underlies many big debates in science: Origin of life: "genes first" vs "metabolism first" (neither, it's a feedback loop) Development: "nature vs nurture" (neither, it's a feedback loop) Neuroscience: "brain vs behaviour" (you guessed it!)

Excited to share that my Pop Syllabus episode, "GLP-1s and The Death of Body Positivity," with Christiana Mbakwe Medina is now live! We discuss the science behind weight stigma, stress, and eating behavior, and what the research tells us. Check out the full conversation on YouTube or Spotify! 🎧

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New Preprint! We gave neural networks infant-like curiosity and let them free to explore. They grew brain-like architecture, followed human synaptic development, and even started to display compositional thought. So we think curiosity doesn't just come from a complex mind... it helps us build one 👇

Curiosity shapes brain-like architectures and functions

How does complex cognition emerge from simpler underlying processes? We show that two components are sufficient: infant-like curiosity and brain-like biophysical constraints jointly drive the emergenc...

biorxiv.org