Studying the dynamics of Active Vision and Cognition, often with combined eye-tracking/EEG. Tenured Assist. Prof. @univgroningen. On Bluesky.

Joined January 2013
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Are you looking for a precise monitor for vision science, eye-tracking, or EEG? In a new preprint, we tested an interesting new display option with excellent timing performance: "High-speed" organic light-emitting diode (OLED) monitors. A summary:🧵[1/n]
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Olaf Dimigen retweeted
Just left Ukraine. What I saw proved to me we can’t give up on the Ukrainian people. Everyone wants this war to end, but any agreement has to protect Ukraine’s security and can’t be a giveaway to Putin. Let me tell you about my trip and why it’s important we stand with Ukraine.🧵
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RT @vilotijevic_ana: When I know your #Mind, I will paint your eyes 😉 Check out the blog I wrote for @mw_groningen! t.co/VwQJQh…
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Olaf Dimigen retweeted
GeoConfirmed UKR - Misinformation by President Trump. While we typically refrain from political commentary, President Donald Trump's recent statement regarding the war in Ukraine is so egregious that we feel compelled to respond. Several claims made by President Trump have already been debunked. We've included responses from Grok AI for each claim, demonstrating that even Grok refutes the misinformation spread by the president. In this thread, we will provide geolocated footage as a reminder to everyone that Russia invaded Ukraine on February 24, 2022, marking the beginning of this war. 1) The United States has not spent $350 billion on this war, nor has it outspent Europe by $200 billion. In fact, European contributions have surpassed those of the US. Moreover, a significant portion of the American military aid (around 90% !) is spend in the US, reinvesting in the US economy. statista.com/statistics/1499… eeas.europa.eu/delegations/u… ifw-kiel.de/publications/new… csis.org/analysis/where-miss… (Grok: x.com/i/grok/share/9grtpN5K2…) 2) President Zelensky did not claim that half the American money sent to Ukraine is "missing". He stated that half of the promised funds had not been received, which is a crucial distinction. csis.org/analysis/where-miss… politifact.com/factchecks/20… edition.cnn.com/2025/02/19/p… (Grok: x.com/i/grok/share/x2J4XJgAu…) 3) Ukrainian constitution prohibits elections during wartime, a measure designed to protect the democratic process from foreign interference, particularly given Russia's known capabilities in this area... foreignpolicy.com/2023/07/11… edition.cnn.com/2024/03/30/e… united24media.com/war-in-ukr… (Grok: x.com/i/grok/share/iNgj4reyI…) 4) President Zelensky is not a dictator, as evidenced by Ukraine's constitutional framework and his commitment to holding elections once hostilities cease. In contrast, it's worth noting that President Putin consistently wins elections in Russia with implausibly high percentages of votes, with opposition that 'falls out of windows", is poisened or jailed, raising questions about the true nature of Russia's electoral process. europarl.europa.eu/doceo/doc… oscepa.org/en/news-a-media/p… osce.usmission.gov/on-the-ru… japantimes.co.jp/news/2024/0… bbc.com/news/world-europe-68… (Grok: x.com/i/grok/share/aK1JCZlsa…) 5) President Zelensky has a approval rate above 50% and not 4%. 4% is Russian disinformation. edition.cnn.com/2025/02/19/p… kiis.com.ua/?lang=eng&cat=re… euronews.com/2025/02/19/zele… abcnews.go.com/International… (Grok: x.com/i/grok/share/IHyHHTkKe…) 6) There was no NATO expansion to the East, as NATO itself cannot expand. Instead, democratic countries independently decide whether they want to become members of the alliance. The process of joining NATO is voluntary and involves multiple steps, including meeting specific requirements and completing a formal application process. The fact that many of Russia's former neighbors have chosen to seek NATO membership speaks volumes about their perception of Russia and their desire for collective security. The decision of these nations to pursue NATO membership reflects their sovereign right to determine their own foreign policy and security arrangements. It also indicates a preference for the stability and security guarantees that NATO membership offers, rather than remaining under Russian influence. Regarding the famous 'promise': Article 103 of the UN Charter establishes a clear hierarchy in international law. It states that obligations under the UN Charter prevail over obligations under any other international agreement in case of conflict. This supremacy extends beyond just treaties, as it is generally understood to also apply to customary international law. The hierarchy can be summarized as follows: 1) UN Charter obligations 2) Other treaties and customary international law 3) Non-treaty international texts 4) Political promises or commitments 5) Historical claims Russia's invasion of Ukraine clearly violates fundamental principles of the UN Charter, including the prohibition on the use of force against the territorial integrity of another state. Any attempts to justify this action based on lower-ranking considerations like political promises or historical claims are legally irrelevant. euvsdisinfo.eu/report/there-… nato.int/cps/ra/natohq/11520… iir.cz/lies-provocations-or-… (Grok: x.com/i/grok/share/fb5Fnn3Do… and x.com/i/grok/share/NgIPkpYvJ… and x.com/i/grok/share/NgIPkpYvJ…) 8) Who initiated this nearly three-year-long war? RUSSIA. As a platform that has analyzed over 50,000 frames/videos related to the conflict, we will remind the president ,with geolocated footage, who started this war: RUSSIA. Russia invaded Ukraine on February 24, 2022, despite repeatedly denying any plans for invasion in the preceding days. x.com/Mike_Pence/status/1892… edition.cnn.com/2025/02/19/p… (Grok: x.com/i/grok/share/m1W0ZufMq…) --- 24 FEB 2022 - Russian tanks crossing the border from Belarus into Ukraine in Senkivka. 52.106063, 31.780644 4Q4J C7C Sen'kivka, Chernihiv Oblast, Ukraine Sources: twitter.com/Conflicts/status… 1/11
VIDEO: @CNN shows CCTV footage of tanks crossing the border from Belarus into Ukraine.
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Olaf Dimigen retweeted
Bluesky is emerging as the new platform for science mikeyoungacademy.dk/?p=8861

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Olaf Dimigen retweeted
Check out our follow-up paper on #WeaponFocus in CR:PI, where we ask the question: Is a knife the same as a plunger? doi.org/10.1186/s41235-024-0… 🧵👇
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Here's a comparison to a CRT & LCD. The OLED's response times (~0.3 ms) are on par with a CRT, minus the phosphor persistence. Latencies were much better than for the LCD. [5/n]
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We also identified some caveats: Proper monitor settings are crucial to prevent luminance saturation artifacts (due to Auto-Brightness Limiting). See preprint for details. [10/n]
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OLED panels are known for their image quality. Unlike LCDs, their pixels are self-lit, respond rapidly, and can show true black. Only recently, however, OLEDs with high 240 Hz refresh rates became available. We compared one promising model (ASUS PG27AQDM) to CRTs & LCDs: [3/n]
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At 240 Hz, the OLED can draw stimuli with finely graded durations. Here is an example of a white stimulus shown for two frames (8.33 ms). Note the almost square wave-like luminance response: [4/n]
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Cathode-ray tube (CRT) monitors have long been the gold standard for temporal precision, but are nowadays hard to find. Many labs have moved to LCDs, which suffer from comparatively sluggish and temporally dependent responses, poor viewing angles, and low contrasts. [2/n]
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Are you looking for a precise monitor for vision science, eye-tracking, or EEG? In a new preprint, we tested an interesting new display option with excellent timing performance: "High-speed" organic light-emitting diode (OLED) monitors. A summary:🧵[1/n]
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Olaf Dimigen retweeted
15 Sep 2024
Thank you to everyone who made #ESSEM2024 in Athens such a wonderful experience! What could be better than a week of discussing #eyemovements within view of the Acropolis! 👀
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On the ferry to Athens, looking forward to the 6th European Summer School on Eye Movements #ESSEM2024
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"Neural mechanism underlying preview effects and masked priming effects in visual word processing". Now available open access in AP&P: rdcu.be/dMzL6 @Coral_Huangxin @urs_maurer

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Olaf Dimigen retweeted
Neuromatch Academy teaches thousands of students about neuroscience, deep learning, climate. We uniquely have export permit, ~1000 applicants per year from embargoed countries, e.g., Iran. We can not accept money, making us somewhat unsustainable and may force us to eventually reject students. Who knows someone who could help fund the participation of these students?
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