Kuschelhormon, Treuehormon, Angstlöser - häufig gebrauchte Schlagwörter für das Neuropeptid Oxytocin, das sich in den letzten Jahren als ein Stoff erwiesen hat, der unser Verhalten in zentralen Regionen des Gehirns positiv beeinflussen kann. Was jedoch bisher völlig unklar war: Wie gelangt dieser Botenstoff aus dem Hypothalamus in die Hirnbereiche, die unsere Gefühle und Reaktionen im sozialen Miteinander kontrollieren? Wissenschaftler am Max-Planck-Institut für medizinische Forschung in Heidelberg und am Schweizer Zentrum für psychiatrische Neurowissenschaften in Lausanne konnten die weit reichenden Ausläufer von Oxytocin produzierenden Neuronen im Rattengehirn bis zu ihren Zielorten verfolgen. In der Amygdala dämpft eine gezielte Oxytocin-Ausschüttung die Angstreaktion.
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