Sacha Altay
@Sacha_Altay
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Postdoc @IPZ_ch🇨🇭| @Cognition_ENS PhD 🇫🇷 | 🔎 Misinformation, misperceptions, social media & (dis)trust 🦹♂️
Paris, France
Joined May 2018
Reminder to join us on the other place🦋. I use it more often that X nowadays and the signal to noise ratio is amazing compared to here.
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RT @ajungherr: Excellent corrective account by @_FelixSimon_ and @Sacha_Altay to the alarmist narratives on AI's prospective impact on elec….
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RT @_FelixSimon_: And read all the other, super intelligent pieces in the Artificial Intelligence and Democratic Freedoms series, including….
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RT @_FelixSimon_: How harmful is GenAI around elections? Will it trigger a misinformation apocalypse and upend elections?. I am happy to fi….
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RT @danwilliamsphil: New post in which I reflect on media trends:.– Legacy media is in rapid decline.– The media environment of 2025 is ver….
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RT @acerbialberto: 🚨New preprint with @Arkyfish. What drives engagement with *reliable* news on social media?.
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RT @NatureHumBehav: In this article, @Sacha_Altay @EmmaHoes93 and @mwojcieszak show that following the news on social media increases curre….
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The pre-registrations, materials, R scripts, and the data to replicate the findings are publicly available on OSF:
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We show that people actually learn from news on social media and that this form of news consumption should not be dismissed or disdained. While some forms of social media use are clearly harmful, others are positive and can be leveraged to foster a well-informed society.
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The treatment had no significant effects on belief in and awareness of false news stories, feeling of being informed, political efficacy, affective polarization, and interest in news or politics.
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These effects are larger among participants who fully complied (by following the accounts and turning on the notifications):
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We found that following two (additional) news accounts on WhatsApp or Instagram for two weeks boosted news knowledge, participants’ ability to discern true from false news stories, awareness of true news stories, and trust in the news.
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Our dependent variables were repeated across waves, and in Wave 2 we added novel news knowledge questions and new true & false news stories, that appeared between the waves – so that participants could not have possibly known them before the treatment.
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Participants were asked to follow two accounts for two weeks and activate the notifications. In the treatment condition the accounts were news-related whereas in the control they were not. We measured compliance with screenshots uploaded by participants and self-reported measures
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🚨 Now out in NHB 🚨. We show that following the news on WhatsApp or Instagram (N = 3,395 🇫🇷🇩🇪) increases current affairs knowledge, participants’ ability to discern true from false news stories, awareness of true news stories, as well as trust in the news.
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RT @risj_oxford: Our Digital News Report 2025 is out!. 📊48 markets.🌏Almost 100K respondents.📰Key headline: Audiences lean into video news a….
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RT @CELL_kuum: "rely more on the good stuff" @Sacha_Altay advocates that we should increase trust in credible sources in order to improve….
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RT @CELL_kuum: Very excited to hear @Sacha_Altay 's keynote at the #ZPLS on the 22nd of May! Register at to make s….
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RT @BrianMGuay: 🚨Out today in PNAS @PNASNews🚨. Why do people overestimate the size of politically relevant groups….
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RT @robsica: 🎯"people are generally vigilant and sophisticated in evaluating communicated information, and manipulation of opinion is excep….
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