@JasonLeng5

Postdoc at UC Berkeley psych @ShenhavLab | PhD in Cognitive Science @BrownCLPS

 Berkeley, CA
Joined June 2019
  • Tweets29
  • Following122
  • Followers134
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Xiamin (Jason) Leng retweeted
Michael Baym@baymJul 30
I posted this originally in a very different context, but it remains an important reminder for people who like to extrapolate exponentially long in to the future
Michael Baym@baym16 Mar 2020
Quick math refresher for any colleagues who might need it: on a semilog plot, a sigmoid looks very different. It is well approximated by an exponential up until about 20% of its eventual maximum. Here is the same logistic function plotted in both a linear and log scale:
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Xiamin (Jason) Leng retweeted
Shenhav Lab@ShenhavLab3 Oct 2025
➡️P3.I.45: "Validating predictions of a flexible decision-making model for varying decision goals and choice set properties" by Ana Hernandez at 11:15 on 10/5. (2/2)
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Xiamin (Jason) Leng retweeted
Shenhav Lab@ShenhavLab3 Oct 2025
At #SNE2025? Check out our lab's presentations! ➡️O.03.02: "Competitors or Opportunities? Mutual exclusivity alters neural and attentional processing of choice alternatives" by @JasonLeng5 at 9:00 on 10/4. (1/2)
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Xiamin (Jason) Leng retweeted
Ivan Grahek@GrahekIvan26 Aug 2025
After scrolling Twitter, it will take you a while to get back into work mode. Why? In our new work (now out in Psych Rev) with @JasonLeng5, @smusslick, @amitaishenhav, we explore the costs of adjusting cognitive control to meet different goals: psycnet.apa.org/record/2026-… A thread:

Control adjustment costs limit goal flexibility: Empirical evidence and a computational account.

A cornerstone of human intelligence is the ability to flexibly adjust our cognition and behavior as our goals change. For instance, achieving some goals requires efficiency, while others require...

psycnet.apa.org
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Xiamin (Jason) Leng retweeted
Shenhav Lab@ShenhavLab20 Feb 2025
Our newest chapter, “Breaking the tug-of-war,” reviews the lab’s latest @NIH- and @NSF-funded research that has changed the way we think about decision-making (and we hope how you do also): osf.io/preprints/psyarxiv/g2… Led by @JasonLeng5, along  with @YiHsinSu1 and @froemero1

Breaking the tug-of-war: What neuroeconomics can gain by moving past competition-only models

Models like the drift diffusion model have been highly influential in explaining decision-making as a tug-of-war process, where evidence for competing options accumulates until a threshold is...

osf.io
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Our paper is finally in press! Many thanks to @froemero1, Thomas Summe, @amitaishenhav, and everyone in @ShenhavLab!
Nature Human Behaviour@NatureHumBehav20 Dec 2024
Xiamin Leng and colleagues find that framing options in a choice set as inclusive (instead of mutually exclusive) increases the efficiency of choices and reduces feelings of conflict. nature.com/articles/s41562-0…
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Xiamin (Jason) Leng retweeted
Shenhav Lab@ShenhavLab23 Aug 2023
Attending #CCN2023 tomorrow? Come check out some of our lab's fantastic posters!! (P-2B.74, P-1B.92) 🧠🇬🇧🥳
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Excited to share my latest preprint with @froemero1, Thomas Summe, & @amitaishenhav: “Mutual inclusivity improves decision-making by smoothing out choice’s competitive edge” biorxiv.org/content/10.1101/… A short 🧵 1/
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Another way people have been shown to facilitate choices is to set a tight deadline. We confirm that this is the case. However, we find that this process is enacted via a different decision mechanism than inclusivity, and led people to feel more, rather than less, conflicted. 8/
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All in all, these studies show that choices can improve and feel less costly when enacted as though there are still other options possible. These benefits result from options no longer competing as strongly with one another, relieving a major source of tension in choice. 9/
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Xiamin (Jason) Leng retweeted
Shenhav Lab@ShenhavLab22 Aug 2022
We’re looking for a new postdoc! If you’re interested in how people make cost-benefit decisions, including about mental effort, this offers the chance to explore such questions using multiple (neural, comp) methods with an amazing group of people. Pls RT! bit.ly/3dBgpub
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Xiamin (Jason) Leng retweeted
Shenhav Lab@ShenhavLab27 Jul 2022
If you're at #CogSci2022, check out @GrahekIvan's talk Thurs morning (T2.3) on work co-led by @JasonLeng5 and w/ @mpraterfahey & @debyee29: "Empirical and computational evidence for reconfiguration costs during within-task adjustments in cognitive control" bit.ly/3OF23Wo
Ivan Grahek@GrahekIvan27 Jul 2022
Flying to #CogSci2022? Wondering why it’s hard to finish your talk after scrolling Twitter while waiting to board? Drop by the Decision Making session on Thursday morning to hear my talk (T2.3) about the costs of adjusting how we process information (attention and caution). 1/2
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Register now for the 3rd Workshop on Mental Effort 2022 (Nov 21-22) in Providence, RI @BrownCLPS: sites.google.com/view/mental… The workshop is designed to facilitate exchange of ideas between researchers studying mental effort across different disciplines and modeling frameworks. 1/4

2024 Workshop

4th Workshop on Mental Effort We are currently planning the next Workshop on Mental Effort. Stay tuned for updates by signing up for our newsletter.

sites.google.com
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Xiamin (Jason) Leng retweeted
Shenhav Lab@ShenhavLab7 Jun 2022
Attending #RLDM2022? Check out the fantastic posters being presented by members of our lab (IDs 1.141, 1.110, 2.113, & 2.140) during the poster sessions this Thursday and Friday, 4:30pm-7pm! Described in 🧵below, hope to see you all there!😎🥳
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