Chaz Firestone's Avatar

Chaz Firestone

@chazfirestone.bsky.social

Cognitive scientist studying how we see + think @ Johns Hopkins University. πŸ‡¨πŸ‡¦ Lab: https://perception.jhu.edu/

5,915 Followers  |  765 Following  |  387 Posts  |  Joined: 03.07.2023  |  2.3913

Latest posts by chazfirestone.bsky.social on Bluesky

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β€œmy kids have such different personalities!”

the personalities:

06.10.2025 23:18 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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When a butterfly becomes a bear, perception takes center stage.

Research from @talboger.bsky.social, @chazfirestone.bsky.social and the Perception & Mind Lab.

06.10.2025 20:02 β€” πŸ‘ 31    πŸ” 8    πŸ’¬ 2    πŸ“Œ 2
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ΒΏOso o mariposa? La IA crea nuevos β€˜anagramas visuales’ para engaΓ±ar al cerebro y estudiar nuestra percepciΓ³n Un equipo de cientΓ­ficos ha creado un nuevo repertorio de imΓ‘genes que, gracias a la inteligencia artificial, permiten estudiar mejor la forma en que nuestro cerebro interpreta los estΓ­mulos visuales

❗ ΒΏOso o mariposa? La IA crea nuevos β€˜anagramas visuales’ para engaΓ±ar al cerebro y estudiar nuestra percepciΓ³n

06.10.2025 15:03 β€” πŸ‘ 25    πŸ” 4    πŸ’¬ 13    πŸ“Œ 7

Visual anagrams in the @dailymail.co.uk:

www.dailymail.co.uk/sciencetech/...

06.10.2025 15:09 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Out today!

www.cell.com/current-biol...

06.10.2025 14:56 β€” πŸ‘ 36    πŸ” 11    πŸ’¬ 1    πŸ“Œ 1
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Artificial Phantasia: Evidence for Propositional Reasoning-Based Mental Imagery in Large Language Models This study offers a novel approach for benchmarking complex cognitive behavior in artificial systems. Almost universally, Large Language Models (LLMs) perform best on tasks which may be included in th...

Imagine an apple 🍎. Is your mental image more like a picture or more like a thought? In a new preprint led by Morgan McCartyβ€”our lab's wonderful RAβ€”we develop a new approach to this old cognitive science question and find that LLMs excel at tasks thought to be solvable only via visual imagery. 🧡

01.10.2025 01:26 β€” πŸ‘ 112    πŸ” 36    πŸ’¬ 5    πŸ“Œ 8
a meme showing a smiling plush octopus and a frowning plush octopus. 

beside the smiling octopus: β€œwhen your students say they like your class”

beside the frowning octopus: β€œwhen the same students are happy that you canceled class”

a meme showing a smiling plush octopus and a frowning plush octopus. beside the smiling octopus: β€œwhen your students say they like your class” beside the frowning octopus: β€œwhen the same students are happy that you canceled class”

me this week

29.09.2025 23:07 β€” πŸ‘ 19    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

yes please don’t torture your students too much! they can only take so many em dashes and italics (i get carried away with those)

26.09.2025 13:08 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Great to have another paper with @chazfirestone.bsky.social @ianbphillips.bsky.social and the brilliant Hanbei Zhou out! In this paper we demonstrate that stimuli within events are perceived further apart in time β€” an event-based analog of β€œobject-based warping”. psycnet.apa.org/record/2026-...

04.09.2025 16:27 β€” πŸ‘ 85    πŸ” 20    πŸ’¬ 3    πŸ“Œ 3

(And with no paywall here: philpapers.org/archive/GOHE...)

04.09.2025 16:31 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

(And with no paywall here: philpapers.org/archive/GOHE...)

04.09.2025 16:31 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Our new paper explores an analogy between representations of objects and representations of events, finding that similar illusions arise for both! Check it out πŸ‘‡

04.09.2025 16:31 β€” πŸ‘ 53    πŸ” 13    πŸ’¬ 2    πŸ“Œ 0

You will definitely not regret reading this fantastic new paper by my (and @chazfirestone.bsky.social, Hanna Pickard and Monique Wonderly's) brilliant student, Rui Zhe Goh. I learned a huge amount working with him on it.

02.09.2025 14:27 β€” πŸ‘ 9    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Really happy to have a new paper forthcoming at PPR!

Ever wondered if there’s any point in feeling regret? In this paper, I argue that regret is valuable because it helps us overcome temptation. Check it out: philpapers.org/rec/GOHRLA

02.09.2025 13:16 β€” πŸ‘ 32    πŸ” 6    πŸ’¬ 0    πŸ“Œ 1
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01.09.2025 17:38 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
a selfie with chaz and john danaher

a selfie with chaz and john danaher

screenshot of new yorker profile of danaher

screenshot of new yorker profile of danaher

excerpt from interview with danaher:

The people I was most interested in were philosophers of science.
You have great minds, like Popper, Feyerabend, Lakatos, Kuhn, and my own dissertation supervisor, Isaac Levi.
These were people who were fascinated by the question of research programs.
What makes some progressive, what makes some regressive? What makes them healthy, what makes them unhealthy?
For me, all of my coaching is structured along those lines.

excerpt from interview with danaher: The people I was most interested in were philosophers of science. You have great minds, like Popper, Feyerabend, Lakatos, Kuhn, and my own dissertation supervisor, Isaac Levi. These were people who were fascinated by the question of research programs. What makes some progressive, what makes some regressive? What makes them healthy, what makes them unhealthy? For me, all of my coaching is structured along those lines.

had a little chat with the greatest grappling coach of all time! he was also a philosophy grad student at columbia way back when. mind blown

www.newyorker.com/culture/pers...

en.m.wikipedia.org/wiki/John_Da...

01.09.2025 17:38 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Why a Classic Psychology Theory about Vision Has Fallen Apart The downfall of a long-standing theory in psychology raises a question: How much does the environment we’re raised in change how we literally see the world?

Do you fall for the MΓΌller-Lyer optical illusion? Psychologists had long thought that it depends on your cultural backgroundβ€”the famous "carpentered-world" hypothesis. Now, that hypothesis is widely disputed. Here's why. πŸ§ͺ by @norabradford.bsky.social
www.scientificamerican.com/article/does...

25.08.2025 14:40 β€” πŸ‘ 30    πŸ” 13    πŸ’¬ 0    πŸ“Œ 0

A little write-up of our Psych Review paper (with @chazfirestone.bsky.social) on culture and visual illusions β€” out now in Slate! πŸ‘‡

24.08.2025 18:23 β€” πŸ‘ 44    πŸ” 7    πŸ’¬ 0    πŸ“Œ 1

hey check out @norabradford.bsky.social's latest!!

23.08.2025 18:35 β€” πŸ‘ 14    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

Way cool summary on whether the Muller-Lyer illusion shows consistency or differences across cultures. And the next post from Chaz gives a link to the research article.

For some folks, this may require updating how they teach perception. At what level does culture begin to influence perception?

23.08.2025 17:58 β€” πŸ‘ 7    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

so close bsky.app/profile/chaz...

23.08.2025 13:49 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Great article! Mentions the LEVANTE project and the ManyX efforts.

23.08.2025 13:26 β€” πŸ‘ 9    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

Thanks so much @dorsaamir.bsky.social and @chazfirestone.bsky.social, along with @mcxfrank.bsky.social, for your input on this! And ofc @sarahexplains.bsky.social and @parshallison.bsky.social for your editing!

22.08.2025 17:29 β€” πŸ‘ 33    πŸ” 9    πŸ’¬ 0    πŸ“Œ 0

For more context:

bsky.app/profile/chaz...

22.08.2025 17:08 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Why a Classic Psychology Theory about Vision Has Fallen Apart The downfall of a long-standing theory in psychology raises a question: How much does the environment we’re raised in change how we literally see the world?

How much does the environment we’re raised in change how we see the world? Wonderful piece in @sciam.bsky.social by @norabradford.bsky.social, ft. an interview with @dorsaamir.bsky.social about our work on the 'cultural byproduct hypothesis'.

www.scientificamerican.com/article/does...

22.08.2025 17:06 β€” πŸ‘ 60    πŸ” 23    πŸ’¬ 5    πŸ“Œ 6
a novelty sign that reads:

RATES

Answers $1
Answers with Thought $20
Correct Answers $50

- Stupid Looks Are Free -

a novelty sign that reads: RATES Answers $1 Answers with Thought $20 Correct Answers $50 - Stupid Looks Are Free -

AI progress

20.08.2025 23:39 β€” πŸ‘ 13    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

πŸ™ƒ i'm feeling a bit spun in circles. talk at next year's tiki bar??

20.08.2025 05:06 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

well now i'm mixed up…by what principle do you determine which properties are sensible to control and which are hopeless/futile? as now acknowledged, we don't claim to equate literally all low-level properties. but our approach controls for luminance, contrast, spatial frequency, curvature…not bad!

20.08.2025 04:57 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0

i think that counts as progress! we certainly do disagree about that last part, and it's useful to have clarity on it.

(though now i'm wondering if i should screenshot your comments and use them to sidestep reviewer objections about just this issue…)

20.08.2025 04:17 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0

i agree with all this! need a new word (can surely have only one elides per day) but you’re leaving out the β€œβ€ and ~ in the threads, and the nuance in the paper. controlling for low-level confounds is a goal had by many, and our project does that to a greater extent than before on this question

20.08.2025 03:51 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

@chazfirestone is following 20 prominent accounts