EILMELDUNG: ADHD-Medikamente wie Adderall und Ritalin steigern möglicherweise nicht direkt die Aufmerksamkeit. Eine neue Studie mit Hirnscans zeigt, dass die Medikamente in erster Linie die Netzwerke für Wachheit und Antizipation von Freude aktivieren.
Die in der Fachzeitschrift Cell veröffentlichten Ergebnisse stellen bisherige Erkenntnisse über die Wirkungsweise dieser Stimulanzien in Frage. Wissenschaftler analysierten Tausende von Hirnscans von Jugendlichen.
Die Forschungsergebnisse deuten darauf hin, dass die Medikamente nur geringe direkte Auswirkungen auf die Hirnnetzwerke haben, die die Aufmerksamkeit steuern. Stattdessen erhöhen sie die Erregung und beruhigen das Gehirn indirekt.
Experten überdenken nun die Behandlungsstrategien für ADHS. Weitere Forschungen zur Untersuchung alternativer Ansätze sind geplant.
Dies ist eine sich entwickelnde Geschichte. Weitere Updates folgen.
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