F
Fredrik Ullén
Researcher at Karolinska Institutet
Publications - 122
Citations - 6404
Fredrik Ullén is an academic researcher from Karolinska Institutet. The author has contributed to research in topics: Personality & Cognition. The author has an hindex of 39, co-authored 113 publications receiving 5578 citations. Previous affiliations of Fredrik Ullén include Max Planck Society & Allen Institute for Brain Science.
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Journal ArticleDOI
Extensive piano practicing has regionally specific effects on white matter development.
TL;DR: Positive correlations between practicing and fiber tract organization in different regions for each age period are found, and long-term training within critical developmental periods may induce regionally specific plasticity in myelinating tracts.
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Polygenic risk scores for schizophrenia and bipolar disorder predict creativity
Robert Power,Stacy Steinberg,Gyda Bjornsdottir,Cornelius A. Rietveld,Abdel Abdellaoui,Michel M Nivard,Magnus Johannesson,Tessel E. Galesloot,Jouke J. Hottenga,Gonneke Willemsen,David Cesarini,Daniel J. Benjamin,Patrik K. E. Magnusson,Fredrik Ullén,Henning Tiemeier,Albert Hofman,Frank J. A. van Rooij,G. Bragi Walters,Engilbert Sigurdsson,Thorgeir E. Thorgeirsson,Andres Ingason,Agnar Helgason,Augustine Kong,Lambertus A. Kiemeney,Philipp Koellinger,Dorret I. Boomsma,Daniel F. Gudbjartsson,Hreinn Stefansson,Kari Stefansson +28 more
TL;DR: Creativity and psychosis share genetic roots, and higher polygenic risk scores for schizophrenia and bipolar disorder would predict creativity could not be accounted for by increased relatedness between creative individuals and those with psychoses.
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Listening to rhythms activates motor and premotor cortices
Sara L. Bengtsson,Fredrik Ullén,H. Henrik Ehrsson,Toshihiro Hashimoto,Tomonori Kito,Eiichi Naito,Hans Forssberg,Norihiro Sadato +7 more
TL;DR: It is argued that the complexity of rhythm sequences is an important factor in modulating activity in many of the rhythm areas, and the difference in complexity of the authors' stimuli should be regarded as continuous.
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The Swedish Twin Registry : establishment of a biobank and other recent developments
Patrik K. E. Magnusson,Catarina Almqvist,Iffat Rahman,Andrea Ganna,Alexander Viktorin,Hasse Walum,Linda Halldner,Sebastian Lundström,Fredrik Ullén,Niklas Långström,Henrik Larsson,Anastasia Nyman,Clara Hellner Gumpert,Maria Råstam,Henrik Anckarsäter,Sven Cnattingius,Magnus Johannesson,Erik Ingelsson,Lars Klareskog,Ulf de Faire,Nancy L. Pedersen,Paul Lichtenstein +21 more
TL;DR: The main projects within which the new collections of both biological samples as well as phenotypic measures have been collected are described and coverage by year of birth, zygosity determination, ethnic heterogeneity, and influences of in vitro fertilization are described.
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The psychophysiology of flow during piano playing.
TL;DR: Piano playing was used as a flow-inducing behavior in order to analyze the relationship between subjective flow reports and psychophysiological measures, and flow is proposed to be a state of effortless attention, which arises through an interaction between positive affect and high attention.