title: Rodent models of depression: forced swimming and tail suspension behavioral despair tests in rats and mice.
abstract: Rodents forced to swim in a narrow space from which there is no escape will, after an initial period of vigorous activity, adopt a characteristic immobile posture, making only those movements necessary to keep their heads above the water. It was hypothesized that immobility reflected the animals' having learned that escape was impossible and their having given up hope. Immobility was therefore given the name "behavioral despair". Immobility was subsequently found to be reduced by a wide range of clinically active antidepressant drugs. This simple behavioral procedure has since become a useful test for screening novel antidepressants in rats and is presented in this unit. An equivalent procedure in the mouse is also described along with a "dry" version of the test where immobility is induced simply by suspending the mouse by the tail.
authors.affiliation: Porsolt and Partners Pharmacology, Boulogne-Billancourt, France.
authors.forename: R D
authors.initials: RD
authors.lastname: Porsolt
authors.forename: G
authors.initials: G
authors.lastname: Brossard
authors.forename: C
authors.initials: C
authors.lastname: Hautbois
authors.forename: S
authors.initials: S
authors.lastname: Roux
mesh_terms: D000818:Animals; D000928:Antidepressive Agents / Q000627:therapeutic use; D003863:Depression / Q000188:drug therapy / Q000209:etiology* / Q000523:psychology; D004353:Drug Evaluation, Preclinical / Q000379:methods; D008297:Male; D051379:Mice; D008815:Mice, Inbred Strains / Q000523:psychology*; D023421:Models, Animal; D051381:Rats; D017208:Rats, Wistar / Q000523:psychology*; D012149:Restraint, Physical / Q000009:adverse effects; D013045:Species Specificity; D013550:Swimming
chemical_list: D000928:Antidepressive Agents