On October 24th, 2018, Professor Sieghard Beller died in Bergen following a prolonged illness. Professor Beller, who lead a project in the first funding period of the SPP1516, will long remain in our memories due to his very important contibutions at the intersection of Cognitive Psychology, Cognitive Science, and Ethnology, and for his calm and circumspect nature. We honestly mourn his early passing and wish to pronounce our deepest sympathy to his family and friends.


Markus Knauff, on behalf of the whole SPP

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Official SPP1516 closing event on October 13th, 2018


On October 13th, 2018, from 12 p.m., the official SPP1516 closing event will take place at the Aula of Justus Liebig University Giessen. The event is open to the public. More information (in German) is available on this page.


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Best Student Paper Award to Niels Skovgaard Olsen


Foto Niels Skovgaard Olsen

Niels Skovgaard Olsen received the "Best Student Paper Award 2018" of SPP1516, which includes a prize money of 500 Euros. He did his first PhD in Philosophy, supervised by Wolfgang Spohn, and then pursued his second PhD with Christoph Klauer in Psychology. Since 2017, he is a PostDoc in Michael Waldmann's lab in Göttingen. He received the award for the paper Relevance differently affects the truth, acceptability, and probability evaluations of "and", "but", "therefore", and "if-then" (Skovgaard-Olsen, N., Kellen, D., Krahl, H. & Klauer, K. C.), which appeared 2017 in "Thinking and Reasoning". Congratulations!


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Program for this year's SPP1516 annual meeting


The program for the seventh and final SPP1516 annual meeting in Etelsen (February 18-21, 2018) is online!


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International Rationality Summer Institute (IRSI) 2018


The International Rationality Summer Institute (IRSI) 2018 will take place at Kloster Irsee, Germany, from September 2 - 14, 2018.


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Humboldt fellowship awarded to Matteo Colombo


Photo Matteo Colombo

Dr Matteo Colombo (Tilburg University, The Netherlands) was awarded a "Humboldt Research Fellowship for Experienced Researchers" by the German Alexander von Humboldt Foundation. He will work on a project named "Predictive processing, computational psychiatry, and delusion. The case of Cannabis", which is hosted by Professor Andreas Heinz from the Clinic for Psychiatry and Psychotherapy at Charitè University Clinic Berlin and the Berlin School of Mind and Brain.
More information on the Humboldt Foundation homepage.

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Shira Elqayam is visiting the SPP1516


Dr Shira Elqayam (De Montfort University, Leicester, UK) is visiting the SPP1516 from 07.06. to 05.07.2017. She is staying at the Center for Experimental Psychology and Cognitive Science at the Justus Liebig University of Giessen. You may contact her anytime in case that you are interested.


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Ralph Hertwig is awarded the Leibniz Prize 2017


Prof. Dr. Ralph Hertwig (Max Planck Institute for Human Development) is awarded the prestigious Leibniz Prize 2017 for his outstanding research.


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Program for this year's SPP1516 annual meeting


The program for the sixth SPP1516 annual meeting in Etelsen (March 5 - 8 2017) is online!


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Research on rationality is cover story in Gehirn & Geist 12/2016


The topic of the SPP1516 is also discussed in the popular science journal Gehirn & Geist.

The contents of the 12/16 issue can be browsed here.


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Feature about SPP1516 on Deutschlandfunk


Prof. Dr. Markus Knauff and Prof. Dr. Gerhard Schurz talk about Logic and Intuition: The Other Side of Reason on Deutschlandfunk.

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Report on SPP1516 project in Unizeit 88 at the University of Kiel


The 88th issue of Unizeit at the University of Kiel publishes a feature about the SPP1516 project on "Revising Rational Beliefs in Legal Reasoning: Defeasibility, Counterexamples, and Probabilities" (principal investigators: Prof. Dr. Markus Knauff and PD Dr. Carsten Bäcker). The title of this piece is "Vernunft contra Empörung" (reason contra outrage).

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Program for this year's SPP1516 annual meeting


The program for the fifth SPP1516 annual meeting in Etelsen (March 20 - 23, 2016) is online!


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International Rationality Summer Institute 2016


The first "International Rationality Summer Institute" (IRSI) will take place from September 04 - 16, 2016, in Aurich, Northern Germany. Topic of the IRSI is human rationality from a psychological, philosophical, and neuroscienctific perspective. Advanced undergraduate students, PhD students, and PostDocs may apply for the institute by April 15, 2016. More information is available on this page.


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Entropy Workshop from February 15-16, 2016


From February 15-16, 2016, a Workshop on Entropy took place in Ludwigsburg, Germany. It was organized by Prof. Laura Martignon and Prof. Gabriele Kern-Isberner, both of whom are principal investigators in the SPP1516. The workshop was a big success and will be continued soon. To take a look at the program, please click here.


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Date for the Annual Meeting 2016


The next SPP1516 Annual Meeting will take place from March 20 to 23, 2016. The venue will be again Schloss Etelsen near Bremen.


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Best Student Paper Award to Henrik Singmann


Foto Henrik Singmann

Dr. Henrik Singmann, who did his Ph.D. during the SPP1516's first funding period, was awarded the first "Best Student Paper Award" presented by the SPP. The award includes a prize money of 500 Euros. The winning contribution is the article "New normative standards of conditional reasoning and the dual-source model" (Singmann, H., Klauer, K. C. & Over, D.), which appeared in the Journal "Frontiers in Psychology" in 2014. We congratulate Dr. Singmann on his award and wish him all the best!


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Conference on "Causal and Probabilistic Reasoning" in June


From June 18 until June 20, 2015, a conference on "Causal and Probabilistic Reasoning" will take place in Munich. It is organized by SPP members. For more information, please refer to the conference website http://www.cpr2015.philosophie.uni-muenchen.de/index.html.


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Program of the upcoming SPP1516 conference is online!


Deckblatt 2015

The program for the fourth annual meeting of the SPP1516 in Etelsen (March 15-18) is now online!










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Workshop "Information, Search, and Causes: Rational and Cognitive Approaches"


Deckblatt 2015

On February 6, 2015 a workshop on "Information, Search, and Causes: Rational and Cognitive Approaches" will take place at the University of Turin, including talks by several SPP members. Click here for the program.









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Upcoming SPP1516 Annual Meeting


The Fourth Annual Meeting of the SPP will take place from March 15 until March 18, 2015, at Schloss Etelsen near Bremen. More information will be available soon.


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SPP1516's second funding period has started!


The Priority Programme is now in its second funding period. More information on projects and people in the second funding period is available here.


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Anneliese Maier Research Award for Prof. Ulrike Hahn


Foto Ulrike Hahn

Ulrike Hahn has received the Anneliese Maier Research Award by the Humboldt Foundation. She is planning an intensive collaboration with the SPP.

More Information from the Humboldt Foundation

More Information from the Ludwig Maximilians University of Munich




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Lakatos Award for Prof. Wolfgang Spohn


Foto Wolfgang Spohn

Prof. Dr. Wolfgang Spohn has received the well-known Lakatos Award! More Information