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Nora Harhen

@noraharhen.bsky.social
199 followers 243 following 19 posts

postdoc at NYU studying learning, memory, and decision making across development

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Reposted by Nora Harhen
Jordan Lei @jordanlei.bsky.social · 28/09/2026
Our paper is out in Nature Communications! In our messy, noisy world, do you find planning difficult/less worthwhile? It's not just you. As we increased the stochasticity in a planning environment, we found that people spent less effort planning: www.nature.com/articles/s41... #cogsci #planning
nature.com
Environmental stochasticity reduces human planning effort - Nature Communications
The real world is stochastic, making it difficult to know when planning is worthwhile. Here the authors show that as stochasticity increases, people spend less effort planning and adopt simpler, less ...
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ari ☀️ @khoudary.bsky.social · 29/09/2026
how does memory support perceptual decisions made under uncertainty? this question has scaffolded my entire PhD, and I'm so excited to share part of it in this ✨new preprint ✨ w/ @meganakpeters.bsky.social and @aaronbornstein.bsky.social! link: www.biorxiv.org/content/10.6...
biorxiv.org
Memory retrieval explains dynamic effects of expectations on perceptual decisions
Expectations—prior knowledge of environmental statistics—support adaptive behavior by reducing uncertainty during inference. However, the questions of where expectations come from and how that ought t...
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Nora Harhen @noraharhen.bsky.social · 11/08/2026
How do we make good decisions with little experience? Adults can rely on memories of past choices. In our new study in @pnas.org we show kids & teens do something similar–but what they remember turns out to be quite different! www.pnas.org/doi/10.1073/...
pnas.org
Developmental changes in memory structure and precision alter the use of retrieved episodes during decisions for reward | PNAS
Most widely studied option evaluation strategies rely on knowledge accumulated across repeated experiences. But how should options be evaluated in ...
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Fred Callaway @fredcallaway.bsky.social · 07/05/2025
Despite the world being on fire, I can't help but be thrilled to announce that I'll be starting as an Assistant Professor in the Cognitive Science Program at Dartmouth in Fall '26. I'll be recruiting grad students this upcoming cycle—get in touch if you're interested!
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Laura Ana Bustamante, PhD @lauraabusta.bsky.social · 26/01/2024
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 🧵
Figure 1: Foraging trial diagram. On each trial participants chose to harvest the tree they were at (down arrow key) or travel to a new tree (right arrow key), during the travel they completed an effortful task, after which they arrived at a new patch with a replenished supply of apples. The tree is a green circle and rectangular brown trunk. The apples are red and lined up in a row on the bottom of the screen. There is a warrior avatar with a shield, helmet, and sword who jumps to harvest the apples.
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Fred Callaway @fredcallaway.bsky.social · 11/01/2024
Happy to belatedly "announce" that our paper on nudging has been published in Psych Review! We understand nudges as changing the "meta-level decision-making problem", influencing people's choices by influencing what they think about it. psycnet.apa.org/record/2024-...
Optimal Nudging for Cognitively Bounded Agents: A Framework for Modeling, Predicting, and Controlling the Effects of Choice Architectures
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Kate Nussenbaum @katenuss.bsky.social · 13/11/2023
New preprint! Here, we examine how the specificity of learning computations adapts to the reward structure of the environment and influences memory across development.   osf.io/preprints/ps... Read on for more details. 🧵⬇️
osf.io
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Nora Harhen @noraharhen.bsky.social · 23/10/2023
Really excited to share our new paper where we use a reinforcement learning model to demonstrate that rational adaptation to an unpredictable early life environment can produce key characteristics of anhedonia (1/10) onlinelibrary.wiley.com/doi/10.1111/...
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David Barack @dlbarack.bsky.social · 18/10/2023
New manuscript! Here, we fit 27 different models to behavior in both humans and monkeys to understand what computations drive patch foraging decisions. Comments/questions/criticisms/suggestions definitely welcome!
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Emily Liquin @emilyliquin.bsky.social · 16/10/2023
Hi Bluesky! I’m recruiting PhD students to help launch the Exploration, Learning, and Mind Lab at U of New Hampshire Psych in Fall 2024! Check out our lab website at liquinlab.github.io for more info, and feel free to get in touch if you’re interested in applying! #CogSci #DevPsych #PsychSciSky
liquinlab.github.io
ELM Lab @ UNH
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Reposted by Nora Harhen
aaron bornstein @aaronbornstein.bsky.social · 13/10/2023
New lab paper! Memory precision and age each affect different decision systems. The lab's first foray into cognitive aging, fearlessly lead by Dr. Sharon Noh. Details in her 🐦🧵 twitter.com/sharon_noh/s... - and out now in Scientific Reports: www.nature.com/articles/s41...
nature.com
Memory precision and age differentially predict the use of decision-making strategies across the lif...
Scientific Reports - Memory precision and age differentially predict the use of decision-making strategies across the lifespan
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