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Morteza Dehghani

@mdehghani

Professor of Psychology and Computer Science at USC

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27.09.2023
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Latest posts by Morteza Dehghani @mdehghani

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A new video via Vahid Online shows Islamic Republic security forces shooting at protestors in Tehran during a protest on January 8.

18.01.2026 23:00 πŸ‘ 163 πŸ” 50 πŸ’¬ 6 πŸ“Œ 4
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The Islamic regime has killed 12k people in 5 days. Iranians are hurting; we’ve been hurting for 150 years. If you have an Iranian colleague, check on them. No unsolicited adviceβ€”just kindness and space. They may kill our brothers and sisters, but never the dream of freedom.

15.01.2026 18:23 πŸ‘ 5 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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My earliest memory: pedaling my bike at age 5 to warn my parents about the Basijis. At 6, I heard my mother’s screams as she was arrested for nail polish.

I tell my kids the story of Zahhakβ€”the tyrant who fed on youth until he was overthrown. The Zahhak of our time is falling πŸ•ŠοΈ
#IranRevolution2026

11.01.2026 00:53 πŸ‘ 23 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0
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Realistic threat perception drives intergroup conflict: A causal, dynamic analysis using generative-agent simulations Human conflict is often attributed to threats against material conditions and symbolic values, yet it remains unclear how they interact and which dominates. Progress is limited by weak causal control,...

Led by @sabdurah.bsky.social w/ Farzan Karimi-Malekabadi, Chenxiao Yu, @nourkteily.bsky.social

Here is the link to the paper: arxiv.org/abs/2512.17066

23.12.2025 23:05 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

This framework allows us to bridge the gap between individual psychology and macro-level social outcomes in ways previously impossible.

23.12.2025 23:05 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Key finding: "Hateful language" was a transient symptom, not the cause. The true engine of long-term escalation was persistent ingroup bias.

Structural factors like segregation didn't change the psychology but concentrated hostility within majority groups.

23.12.2025 23:05 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

In our 2x2 simulation, Realistic Threat (safety/resources) was the heavy hitter. It was the most reliable predictor of actual behavioral escalation.

Symbolic Threat drove ingroup bias and "hateful" speech but rarely escalated conflict on its own.

23.12.2025 23:05 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

By injecting "hostility vectors" into the model's activations, we could causally shift agents from neutral to aggressive behavior.

This proves these internal representations aren't just noiseβ€”they functionalize behavior.

23.12.2025 23:05 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Using mechanistic interpretability, we found the LLM encodes "realistic threat," "symbolic threat," and "hostility" as distinct internal activation states.

We then "steered" these states...

23.12.2025 23:05 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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How do resource fears (realistic threat) vs. value clashes (symbolic threat) drive war & peace?

We built a virtual society of 25 autonomous agents using the Park et al. (2023) framework to find out, using a "minimal groups" paradigm (Group A vs. B).

But first, we looked under the hood. 🧠

23.12.2025 23:05 πŸ‘ 6 πŸ” 7 πŸ’¬ 1 πŸ“Œ 0
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Postdoctoral Scholar - Research Associate at USC Learn more about applying for Postdoctoral Scholar - Research Associate at USC

We're looking for a PhD in Computer Science, Psychology, or Political Science with a strong computational background. ($84-85k salary).

usccareers.usc.edu/job/los-ange...

Happy to answer any questions!

#postdoc #hiring #USC #AI #ComputationalSocialScience #AIforGood

08.09.2025 22:40 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Postdoctoral Scholar - Research Associate at USC Learn more about applying for Postdoctoral Scholar - Research Associate at USC

Come work with us at USC! We're hiring an NSF-funded Postdoc for the Everyday Respect Project. πŸ€–

You'll work directly with me, Ben Graham, and Shri Narayanan, using cutting-edge AI to analyze police body-worn camera footage to improve police-community relations.

08.09.2025 22:40 πŸ‘ 19 πŸ” 10 πŸ’¬ 1 πŸ“Œ 0
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Reconciling flexibility and efficiency: medial entorhinal cortex represents a compositional cognitive map Nature Communications - How the brain creates compositional cognitive maps that support both flexible and efficient planning remains poorly understood. Here, authors propose a...

New paper with @nathanieldaw.bsky.social in Nature Communications: an RL model that builds a successor map compositionally. The new model plans as well as the best models, and it links components of the map used for planning to neural codes in the medial entorhinal cortex.
rdcu.be/eAofi

12.08.2025 17:18 πŸ‘ 79 πŸ” 20 πŸ’¬ 1 πŸ“Œ 0

Our new study in Psych Science @psychscience.bsky.social reveals many interesting-- and concerning -- things about the language on kids' shows, including a grammatical bias in favor of men and boys as agents or "doers" πŸ‘‡

26.07.2025 15:18 πŸ‘ 37 πŸ” 12 πŸ’¬ 2 πŸ“Œ 1
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Syntactic and Semantic Gender Biases in the Language on Children’s Television: Evidence From a Corpus of 98 Shows From 1960 to 2018 - Andrea C. Vial, Aida Mostafazadeh Davani, Ruyuan Zuo, Shreya Haval... Biased media content shapes children’s social concepts and identities. We examined gender bias in a large corpus of scripts from 98 children’s television progra...

πŸ”₯Excited to share our new paper in PsychScience! Shout out to best-ever collaborators Aida Davani, @ruyuan-zuo.bsky.social, @shreyahavaldar.bsky.social, Eleanor Chestnut, @mdehghani.bsky.social & @andreicimpian.bsky.social 🧡1/8…
doi.org/10.1177/0956...

25.07.2025 09:35 πŸ‘ 20 πŸ” 6 πŸ’¬ 1 πŸ“Œ 1

Understanding this dynamic is crucial. External calls for regime change often backfire, strengthening the regime's narrative. The path forward is a psychological shift, not a political one. (2/2)

28.06.2025 14:42 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Opinion | The Moral Paralysis Facing Iranians Right Now

My new op-ed in the @nytimes.

I argue that Iranians are caught in a state of β€œmoral paralysis,” a psychological trap set by the Islamic Republic itself. It pits two of our most sacred values against each other: liberation vs. self-determination. (1/2) www.nytimes.com/2025/06/28/o...

28.06.2025 14:42 πŸ‘ 42 πŸ” 16 πŸ’¬ 5 πŸ“Œ 3

Check up on your Iranian colleagues and students; this is a full-on war!

13.06.2025 03:07 πŸ‘ 6 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Watch this montage of clips from Israel's Channel 14, filled with racist and genocidal bile, shocking stuff, ask yourself why you don't see these clips on US or UK mainstream news, and then read Prem's deep dive for Zeteo into Channel 14:
zeteo.com/p/inside-the...

04.06.2025 02:01 πŸ‘ 1230 πŸ” 462 πŸ’¬ 96 πŸ“Œ 57

PhD preferred.

19.05.2025 03:44 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

This position is remote and can be anywhere in the U.S. If interested, send me a resume. I won’t be able to respond to all messages.

17.05.2025 02:52 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

This is a unique opportunity to contribute fundamental research, while also applying and operationalizing your findings to build cutting-edge AI evaluation systems in a fast-paced, impactful environment!

17.05.2025 02:52 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

We’re looking for a researcher to work on methods and building tools for AI evaluation. We are seeking candidates with expertise at the intersection of agentic systems and personalization, demonstrated by a strong publication record in relevant venues.

17.05.2025 02:52 πŸ‘ 6 πŸ” 6 πŸ’¬ 2 πŸ“Œ 0
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Gaza: Latest Israeli Plan Inches Closer to Extermination The Israeli government’s plan to demolish what remains of Gaza’s civilian infrastructure and concentrate the Palestinian population into a tiny area would amount to an abhorrent escalation of its ongo...

This is what Leibowitz was warning about when he referred to Judeo Nazis www.hrw.org/news/2025/05...

16.05.2025 13:38 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

I am very sorry to hear that, Maddy.

19.04.2025 19:45 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Video Shows Aid Workers Killed in Gaza Under Gunfire Barrage, With Ambulance Lights On

β€œThere is no God but God, Muhammad is his messenger,” the paramedic is heard saying. He asks God for forgiveness and says he knows he is going to die.

β€œForgive me, mother. This is the path I chose β€” to help people,” he said. β€œAllahu akbar,” God is great, he says.

www.nytimes.com/2025/04/04/w...

05.04.2025 01:27 πŸ‘ 1890 πŸ” 690 πŸ’¬ 46 πŸ“Œ 57
Tweet from Yuval Abraham:
"A group of settlers just lynched Hamdan Ballal, co director of our film no other land. They beat him and he has injuries in his head and stomach, bleeding. Soldiers invaded the ambulance he called, and took him. No sign of him since."

Tweet from Yuval Abraham: "A group of settlers just lynched Hamdan Ballal, co director of our film no other land. They beat him and he has injuries in his head and stomach, bleeding. Soldiers invaded the ambulance he called, and took him. No sign of him since."

BREAKING: Yuval Abraham, co-director of Oscar-winning documentary "No Other Land," says Israeli settlers beat his co-director Hamdan Ballal, injuring his head and stomach β€” and then Israeli soldiers invaded the ambulance he was in and seized him.

Ballal's whereabouts are now unknown.

24.03.2025 18:30 πŸ‘ 9449 πŸ” 6599 πŸ’¬ 136 πŸ“Œ 510

Such a great read! Thanks

16.03.2025 05:23 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Anyway to share a version outside the paywall?

16.03.2025 04:25 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Very similar to the Islamic Republic

14.03.2025 18:16 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0