Methods for treating and diagnosing psychiatric affective disorders, e.g., an affective disorder associated with aberrant Sonic Hedgehog (Shh) signaling, by administering to the subject a therapeutically effective amount of an antagonist to Smoothened (Smo), an antagonist to Patched-1 (Ptch-1) and/or an antagonist to Shh.
Aberrant sonic hedgehog signaling in neuropsychiatric disorders