Origins of understanding fair resource collection
Concerns about fair resource exchanges are pervasive across development. However, existing work has focused primarily on resource distributions. The pβ¦
Overall, these results suggest that infants hold broader expectations for fairness that transcend a particular type of resource exchange, with interesting possibilities for future work on equity, fairness, and age-related change! Read the full article here: www.sciencedirect.com/science/arti...
21.01.2026 16:32 β π 0 π 0 π¬ 0 π 0
A two-panel scatterplot showing infantsβ looking times (in seconds) as a function of age (14β18 months) for two experiments. Experiment 1: Collection (left panel) and Experiment 2: Distribution (right panel). Each panel contains green dots representing fair trials and purple dots representing unfair trials. Trend lines with shaded confidence bands are plotted for each trial type.
Critically, the Collection panel shows an Age x Trial Type interaction such that infants looked longer to the Unfair Collection relative to the Fair Collection as they got older. On the other hand, there is no evidence of an interaction in the Distribution panel, instead, infants look longer on average to Unfair Distribution relative to Fair Distribution across the ages tested.
However, we also found evidence of age-related changes! Fairness expectations emerged later for resource collection events than for resource distribution events.
21.01.2026 16:32 β π 0 π 0 π¬ 1 π 0
Here, we focus on "taxation." North American 14-17-month-olds were shown an actor who collected resources either equally or unequally. We find that infants looked longer to unequal resource exchanges, both when resources were unfairly taken from or unfairly given.
21.01.2026 16:32 β π 0 π 0 π¬ 1 π 0
Figure shows the methods used in the paper's experiments. In the left column are the methods for Exp 1 (Collection) and in the right are the methods for Exp 2 (Distribution). In each video, three women sit at a table. One sits in the middle, serving as a collector/distributor, and two sit in the foreground with plates. During familiarization trials, resources were collected from or distributed to their plates with an occluder on the screen hiding the outcomes. During test trials, the same videos were played but with the outcomes shown such that infants either viewed an equal collection/distribution or an unequal collection/distribution.
Out in @cognitionjournal.bsky.social with @jaeminhwang.bsky.social, David Sobel (@candmlab.bsky.social), and @jessicas.bsky.social! Most studies of infantsβ fairness expectations focus on resource distribution, but in everyday life, we engage in many different kinds of resource exchanges.
21.01.2026 16:32 β π 8 π 7 π¬ 1 π 1
New paper announcement! journals.lww.com/greenjournal...
The Journal of Obstetrics and Gynecology is an unusual place for me to publish⦠Let me tell you the story of this paper.
24.11.2025 14:48 β π 11 π 2 π¬ 1 π 0
New open access paper with @drmack.bsky.social! π The menstrual cycle has non-linear effects on pattern separation as measured by the mnemonic similarity task (MST). Perceived stress facilitates pattern separation performance independent of the menstrual cycle.
t.ly/k6Pul
04.05.2025 14:53 β π 9 π 3 π¬ 0 π 0
Apparently the scheduler has been tricky for people to work with. We had a date wrong below and now just got access to rooms. Please see updated schedule of CoCoDev presentations from/with our lab here!
01.05.2025 15:48 β π 3 π 2 π¬ 0 π 0
#SRCD2025 come check out the Toronto Early Cognition Lab (@jessicas.bsky.social)! @elainewang.bsky.social will also be presenting work with @julia-a-leonard.bsky.social that we got to collaborate on :)
01.05.2025 13:55 β π 10 π 3 π¬ 0 π 0
Come check out the EAST & DoT Labs at #SRCD. π€© I'm excited to share our work on children's causal reasoning about historical structural barriers, as well as their pragmatic inferences from what others seek--and do not seek--to explain!
29.04.2025 20:01 β π 20 π 5 π¬ 0 π 1
From input to action: Examining how subtle contextual cues sustain gender inequalities in childhood
Friday, May 2nd, 11:30-1:00PM (Room 200A)
When seeking an explanation is an explanation: Childrenβs ability group stereotypes are influenced by explanation-seeking
Jamie Amemiya, Serena Spada, Molly Tallberg, & Lin Bian
The role of family inequality on childrenβs normative understanding of household labor
Kiana Gee, Allegra J. Midgette, & Nadia Chernyak
Gender inequities in expectations for invisible labor begin in childhood and persist into adulthood
Mia Radovanovic, Tim Wei-Ting Chao, Nila Curtosi, Sofia Westerhoff, Emma Soler, & Jessica A. Sommerville
The role of gender stereotypes in shaping communality in children
Cameron Hall, Katharina Block, Antonya M. Gonzalez, Andrei Cimpian, Toni Schmader, & Andrew Scott Baron
Come to our symposium w/ @jamieamemiya.bsky.social, Kiana Gee, & Cameron Hall at #SRCD2025. We'll talk about how children may acquire, internalize, and perpetuate gender stereotypes. I'm really excited for this one, I think the talks build on each other well to unravel different mechanisms!
01.05.2025 13:49 β π 5 π 2 π¬ 0 π 0
The Early Child Cognition Research Group at ASU (PIs: Kelsey Lucca and Viridiana Benitez) will be presenting our work at #SRCD2025! Hope to see you there!
30.04.2025 17:11 β π 10 π 3 π¬ 0 π 0
Iβm not saying AI is evil β god forbid I be that moralistic and clear β Iβm saying it is worse than that. Itβs MID. Too mid to do much more than externalize some risk, produce some mid documents, and accelerate climate risk as a cute little benefit.
24.03.2025 20:26 β π 796 π 179 π¬ 3 π 19
Children consider othersβ need and reputation in costly sharing decisions - Scientific Reports
Scientific Reports - Children consider othersβ need and reputation in costly sharing decisions
New paper!
Childrenβs sharing is influenced by factors like others' need and reputation, but research has typically examined these factors in isolation. This study explores how different combinations of need and reputation affect costly sharing decisions.
www.nature.com/articles/s41...
03.03.2025 17:20 β π 13 π 6 π¬ 1 π 0
For decades, developmental psychologists have noticed that optimism declines with age. Why does this presumably good thing decrease across development? In this Nature Reviews Psych article, @jessicas.bsky.social and I draw from prior hypotheses to offer an integrated account.
19.11.2024 13:45 β π 90 π 27 π¬ 8 π 1
Looking for to seeing folks in Glasgow for ICIS!!! Here are our lab presentations!
03.07.2024 19:17 β π 6 π 1 π¬ 0 π 0
we've launched our newest citizen-science game, Tone Guesser, led by postdoc and webdev whiz @courtneybhilton.bsky.social
it's both fun and hard (!) and tests your intuitions about tones in music and colour.
themusiclab.org/quizzes/toneguesser
π§ͺ can you beat my scores?
18.06.2024 16:10 β π 19 π 14 π¬ 4 π 4
Going to CDS?
Reading this message?
Come check out work happening at (or with) the CoCoDev lab!
#CDS2024
20.03.2024 15:03 β π 22 π 5 π¬ 0 π 0
Come see us during #CDS's poster sessions!
19.03.2024 01:00 β π 9 π 2 π¬ 1 π 0
Saturday, March 23rd - 1:15 - 2:30 (Poster Session 3)
P3-6 - Infants' moral trait inferences in protective third-party intervention (Norman Zeng, Inderpreet Gill, Jessica A. Sommerville)
Saturday, March 23rd - 4:15 - 5:45PM (Symposium 4.3)
Practice what you preach: consistent messages about the value of effort boost children's persistence (Elaine Wang, Mia Radovanovic, Jessica A. Sommerville, & Julia Leonard)
Saturday, March 23rd - 5:45 - 7:00 (Poster Session 4)
P4-27 - Gender differences in childrenβs response to ineffective teaching across contexts (Mia Radovanovic, Aafiya Somani, Miguel Alzona,
Annabelle Persaud, Jessica A. Sommerville)
Saturday, March 23rd - 5:45 - 7:00 (Poster Session 4)
P4-153 - Interaction with graphics improves learning causal associations in 5-8 years old children (Mishaal Kandapath, Sophia Lee, Arnav Verma,
Fanny Chevalier, Jessica A. Sommerville)
The Toronto Early Cognition Lab is headed to Pasadena for CDS next week! Come check out our work π normanjzeng.bsky.social elainewang.bsky.social jessicas.bsky.social
15.03.2024 21:28 β π 4 π 2 π¬ 0 π 0
A blurb with the author, title, and session number for each of our posters. Rachel Ann King will present her poster in Session 1; Katie Vasquez, Alex Mackiel, and Tania Dhaliwal will present in Session 2; Isabella Ramkissoon, Jessica Waltmon, and Ben Morris will present in Session 4.
Principal investigators: Alex Shaw and Katherine D. Kinzler.
The UChicago Social Kids Lab will be at CDS! Come stop by our posters and see what we've been thinking about lately!
12.03.2024 18:43 β π 4 π 3 π¬ 0 π 0
ManyBabies Workshop: Power AnalysisPresenter Christopher M. M. Cox (Aarhus University) leads an interactive workshop on power analysis. The workshop includes...
Workshop: Power Analysis
The recording of our Power Analysis workshop, led by @chrismmcox.bsky.social, is now available on our YouTube page! www.youtube.com/@manybabies
Direct link: www.youtube.com/watch?v=eWCe...
Tutorial materials: 4ccoxau.github.io/PowerAnalysi...
#psychsky #openscience #devpsych #manybabies
12.03.2024 21:42 β π 27 π 16 π¬ 0 π 1
Congratulations Joel!!!
11.03.2024 22:07 β π 2 π 0 π¬ 0 π 0
I'm a PhD candidate and would be happy to join!
22.02.2024 05:46 β π 2 π 0 π¬ 1 π 0
PhD candidate at University of Illinois Urbana-Champaign.
Executive Director of childrenhelpingscience.com, Psych-DS maintainer, strong feelings about data management & collaborative science. My last name is "Kline Struhl" (she/her)
Lab Manager at the Department of Psychology, University of Toronto
expert mesearcher | arch(l)iving
βπ½ https://www.joeledmartinez.com/
π https://scatteredseeds.leaflet.pub
π§ PhD student at the University of Toronto | The Memory & Perception Lab and The Duncan Lab
PhD Candidate in the Mack Lab at the University of Toronto π¨π¦ π§ π¦ π±
Research: category learning, computational modelling, fMRI
Hobbies: learning animal facts, coding, digital art, sculpting
Ph.D. Student @ University of Illinois, Urbana-Champaign with Dr. Michael Rizzo | Developmental Psychology & Origins of Social Development | @UofTβ22
Asst. Prof of Psych & Brain @ WashU| former postdoc @ MIT BCS & PhD @ UofToronto | Sustained & Selective Attention, Learning, Episodic Memory, Development, Socioeconomic Status | Environment
The media skill lab, led by Dr. Kristy Hamilton, uses empirical research to understand how aspects of our digital environment enable & alter strategic decision-making surrounding our media use
https://www.kristyahamilton.comm.ucsb.edu/media-skill-lab/
PhD student in Developmental Psychology at The University of Chicago studying social cognitive development: relationships and morality.
Psychology PhD candidate @ UChicago studying how kids learn about social categories, inequality, and status hierarchies | Passionate about equity & inclusion | Wesleyan University alumna | First-gen | Oakland, CA π‘
4th year PhD student @Brown studying cognitive development
https://slkiefer.github.io/
Psych Assistant Prof at The University of Victoria. Interested in memory, aging, and cognitive control.
Assistant Professor of Psychology at the University of Victoria studying memory, eye movements, and aging.
wynnlab.org
π¨π¦ Immigrant from π²π΄. Learner. Social and Educational Psychologist. Assistant Professor of Psychology @ UVic
https://oac.uvic.ca/mirlab/nigellou/
Social Psychology PhD Student at the University of Toronto, studying impulsivity, emotion regulation, and substance use.
Professor. Sociologist. NYTimes Opinion Columnist. Books: THICK, LowerEd. Forthcoming: 1)Black Mothering & Daughtering and 2)Mama Bears.
Beliefs: C.R.E.A.M. + the internet ruined everything good + bring back shame.
βIβm just here so I donβt get fined.β