Anxiolytic- and antidepressant-like activities of a methanolic extract of Morinda citrifolia Linn. (noni) fruit in mice: Involvement of benzodiazepine-GABAAergic, serotonergic and adrenergic systems.

Biomed Pharmacother. 2017 Dec;96:944-952.
Anxiolytic- and antidepressant-like activities of a methanolic extract of Morinda citrifolia Linn. (noni) fruit in mice: Involvement of benzodiazepine-GABAAergic, serotonergic and adrenergic systems.
Narasingam M, Vijeepallam K, Mohamed Z, Pandy V.

Feeding of noni fruit extract displayed antianxiety and antidepressant effects in mice.  Results also demonstrate the involvement of serotonergic and noradrenergic systems in the antidepressant effect of noni. (original abstract available at https://www.ncbi.nlm.nih.gov/pubmed/29217165).