A method of treating neuropsychiatric pathologies in a subject, wherein the neuropsychiatric pathologies consist of Fragile X Syndrome (FXS), Angelman syndrome, Williams-Beuren syndrome, hyperacusis, Smiths-Magenis syndrome, Prader-Willi syndrome, 7q11.23 duplication syndrome, or cri-du-chat syndrome, wherein the method comprises administering to the subject a therapeutically effective amount of a composition comprising an agonist of the large-conductance calcium-activated potassium channel (BKCa channel), and wherein the agonist is chlorzoxazone or acetazolamide.