Opioid-specific brain connectivity dynamics distinguish analgesia from secondary effects: Studies in male mice - Jean-Charles Mariani; Samuel Le Meur-Diebolt; Laurianne Beynac; Renata Santos; Stefan Schulz; Thomas Deffieux; Mickael Tanter; Zsolt Lenkei; Andrea Kliewer (Proceedings of the National Academy of Sciences, 2026)