Yongzhen Xie's Avatar

Yongzhen Xie

@doryyongzhenxie.bsky.social

PhD student in the Mack Lab at the University of Toronto πŸ‡¨πŸ‡¦ 🧠 🐦 🐱 My research: category learning, computational modelling, fMRI My hobbies: learning animal facts, coding, digital art, clay

202 Followers  |  100 Following  |  6 Posts  |  Joined: 02.04.2024  |  1.7314

Latest posts by doryyongzhenxie.bsky.social on Bluesky

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The ventromedial prefrontal cortex and Intention Representation in Prospective Memory Prospective memory (PM) consists of (i) a retrospective component, comprised of memory for intentions and for the cues that should trigger an action, …

Happy to share our study showing a new role for ventromedial PFC in prospection. tinyurl.com/e7kudkby
#neuroskyence #psychscisky

17.07.2025 20:23 β€” πŸ‘ 23    πŸ” 8    πŸ’¬ 2    πŸ“Œ 0
OSF

Proud to share the first preprint of my PhD w/ @barense.bsky.social & Mursal Jahed:

β€œPutting the testing effect to the test in the wild: Retrieval enhances real-world memories and promotes their semantic integration while preserving episodic integrity”

See thread! 🧡 osf.io/preprints/ps...

19.06.2025 17:18 β€” πŸ‘ 32    πŸ” 12    πŸ’¬ 4    πŸ“Œ 1
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Super excited to share the preprint we've been working on, "On a roll: Recent familiarity primes the brain to retrieve other memories via dopaminergic nuclei responses"! Check it out, and come see us at CNS if you're around this afternoon! drive.google.com/drive/u/0/fo...

30.03.2025 16:25 β€” πŸ‘ 4    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
OSF

New preprint from Yining Ding (@liliand.bsky.social)!
"Temporal order memory in naturalistic events is scaffolded by semantic knowledge and hierarchical event structure"
osf.io/preprints/ps...

26.03.2025 22:45 β€” πŸ‘ 20    πŸ” 10    πŸ’¬ 1    πŸ“Œ 2
Poster C151

Poster C151

#CNS2025 If you are curious about how hippocampal subfields distinctively support the learning of surprising exceptions to category knowledge, come check out my poster at Session C tomorrow between 5 and 7 pm!

29.03.2025 17:56 β€” πŸ‘ 17    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
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Curious about how individual differences in episodic memory traits relate to changes in memory performance over time? Come check out my poster on Sunday, 5-7pm, poster session C, board 66. #CNS2025

29.03.2025 12:51 β€” πŸ‘ 9    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
Conceptual Roadmap of the present study. To examine the relationship between the metabolic costs of visual processing and aesthetic pleasure, we used both computational and physiological measures to quantify metabolic costs during visual processing: 1. Model-derived estimates of metabolic costs based on the activation of a deep neural network; 2. Metabolic activity of human brains, specifically in the visual processing areas. We found that both measures were inversely related to aesthetic pleasure.

Conceptual Roadmap of the present study. To examine the relationship between the metabolic costs of visual processing and aesthetic pleasure, we used both computational and physiological measures to quantify metabolic costs during visual processing: 1. Model-derived estimates of metabolic costs based on the activation of a deep neural network; 2. Metabolic activity of human brains, specifically in the visual processing areas. We found that both measures were inversely related to aesthetic pleasure.

Energy efficiency drives evolution, and humans may have evolved pleasure-based signals to optimize actions. Does this extend to aesthetic pleasure?

Yes!

We find strong evidence in silico and human observers!
osf.io/preprints/ps...

With Yikai Tang and Wil Cunningham.
@uoftpsychology.bsky.social

29.01.2025 19:43 β€” πŸ‘ 48    πŸ” 15    πŸ’¬ 3    πŸ“Œ 3

New starter pack: people doing science with narratives, naturalistic memory, natural conversations, and using language models for psych/cog sci πŸ“–πŸ’»πŸ“š

(Reply with πŸ™‹ if you'd like to be added!)

go.bsky.app/LGRYMvQ

15.11.2024 18:53 β€” πŸ‘ 66    πŸ” 18    πŸ’¬ 42    πŸ“Œ 0
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People like round contours better than angular contours.

Where and how is curvature represented in the brain?

With indoor architecture we found a neural dissociation between subjective curvature and computational curvature.

www.nature.com/articles/s41...

04.11.2024 17:48 β€” πŸ‘ 21    πŸ” 8    πŸ’¬ 1    πŸ“Œ 0

Excited to share a new preprint with Elizabeth McDevitt, Ghootae Kim, and Nick Turk-Browne investigating the role of REM sleep in neural differentiation of memories in the hippocampus! URL: https://www.biorxiv.org/content/10.1101/2024.11.01.621588v1 (1/9)

04.11.2024 13:53 β€” πŸ‘ 36    πŸ” 17    πŸ’¬ 3    πŸ“Œ 0
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Looking forward to presenting my work on exception learning at #VSS2024! Come see my poster in the morning of May 18 to discuss how prefrontal, hippocampal, and visual areas can distinctively support the learning of complex visual categories with exceptional items!

16.05.2024 22:27 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

#TAMeG2024 is coming!

May 7 2024 @YorkUniversity

🎯 27 talks
🎯 @tyrellturing.bsky.social keynote
🎯panel on epi mem and AI @aronowitz.bsky.social @WilCunningham @tyrellturing.bsky.social & @morganbarense
🍻 reception (cash bar!), awards, powerpoint karaoke!

tameg.ca

02.05.2024 19:23 β€” πŸ‘ 5    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

πŸ“– Link to the online full-text: rdcu.be/dFfkK

20.04.2024 03:15 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Thank you, Asaf! It was very nice having you as a part of my foundational research committee team!

19.04.2024 20:51 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Reconciling category exceptions through representational shifts - Psychonomic Bulletin & Review Real-world categories often contain exceptions that disobey the perceptual regularities followed by other members. Prominent psychological and neurobiological theories indicate that exception learning...

πŸŽ‰ My first first-author paper is now published in PBR! @drmack.bsky.social and l used novel computational modeling & behavioral approaches to show how selective pattern differentiation and integration support learning and generalization of category exceptions! link.springer.com/article/10.3...

19.04.2024 19:38 β€” πŸ‘ 6    πŸ” 6    πŸ’¬ 1    πŸ“Œ 1
Logo of the University of Toronto

Logo of the University of Toronto

Logo of McGill University

Logo of McGill University

Logo of the University of Irvine

Logo of the University of Irvine

We are looking for candidates for a unique postdoc opportunity to work on the role of perceptual grouping in human and computer vision with Sven Dickinson, Kaleem Siddiqi, Zygmunt Pizlo and me.
www.bwlab.org/postdoc-posi...

Please repost.

18.04.2024 03:09 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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Come check out our lab's posters at #CNS2024

Featuring work from @doryyongzhenxie.bsky.social , June-Kyo Kim, and Marcus Meng

13.04.2024 12:24 β€” πŸ‘ 8    πŸ” 3    πŸ’¬ 0    πŸ“Œ 1

I will be presenting my poster on Sunday at 5-7pm. Come to chat about edge functional connectivity and how it can be applied to study the neural dynamics in narrative event processing! #CNS2024

13.04.2024 15:49 β€” πŸ‘ 6    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Saturday blitz session 2 is Erik Wing, and session 4 is Keela Thomson. Poster session A is Hannah Marlatte. Sunday Poster session C is Erik, Xuan Zhang and Prateek Dhamija. Monday Poster session E is Marya Nurgitz, Ariana Giuliano and Keela Thomson

Saturday blitz session 2 is Erik Wing, and session 4 is Keela Thomson. Poster session A is Hannah Marlatte. Sunday Poster session C is Erik, Xuan Zhang and Prateek Dhamija. Monday Poster session E is Marya Nurgitz, Ariana Giuliano and Keela Thomson

Check us out at #cns2024:
Sat.: Erik Wing shows how experts’ schemas (πŸ¦†) accelerate training-induced functional & structural (!) cortical plasticity. Keela Thomson on how kids (πŸ‘Ά) see the world differently (literally!). Β Hannah Marlatte on youths’ PTSD symptoms & its impact on scene construction (πŸŽ‘)

11.04.2024 14:04 β€” πŸ‘ 7    πŸ” 1    πŸ’¬ 2    πŸ“Œ 0
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Interested in chatting about how retrieval can enhance real-world event #memory while also introducing disorganization and distortion? If so, check out my poster with
Morgan Barense this Monday from 8-10 am (D49). We'd love to get feedback on this new work! #CNS2024

11.04.2024 21:27 β€” πŸ‘ 12    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

Brief category learning distorts the perceptual space of complex scenes! Our new paper is now in Psychonomic Bulletin & Review: link.springer.com/article/10.3....Β 

@drmack.bsky.social @dirkbwalther.bsky.social

07.03.2024 03:07 β€” πŸ‘ 8    πŸ” 5    πŸ’¬ 1    πŸ“Œ 2

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