6533b871fe1ef96bd12d2639

RESEARCH PRODUCT

Olfactory discrimination and memory deficits in the Flinders Sensitive Line rodent model of depression

Volker A. CoenenL.-m. PfeifferStephanie ThieleA. CookMáté D. Döbrössy

subject

Male0301 basic medicinemedicine.medical_specialtyTime FactorsOlfactionAudiologyDevelopmental psychology03 medical and health sciencesBehavioral NeuroscienceDiscrimination Psychological0302 clinical medicineBehavioural phenotypemedicineAnimalsInterpersonal RelationsOlfactory memoryDepression (differential diagnoses)Depressive Disorder MajorMemory DisordersRecallRats Inbred StrainsRodent modelGeneral MedicineOlfactory Perceptionmedicine.diseaseRats030104 developmental biologyMental RecallMajor depressive disorderAnimal Science and ZoologyPsychology030217 neurology & neurosurgery

description

Major Depressive Disorder (MDD) is a heterogeneous psychiatric disorder with broad symptomatic manifestations. The current study examined, for the first time, olfactory memory and discrimination in the Flinders Sensitive Line (FSL) rodent model of depression. Male FSL rats and controls were trained on an Olfactory Discrimination (OD) and a Social Interaction (SI) test. On the OD test, the FSL and controls performed similarly at the shortest inter-trial interval (5min), however, with extended delay of 30min, the FSLs had a recall and odour discrimination deficit. At the longest delay (60min) both groups performed poorly. The FSL rats i.) had a deficit in olfactory discrimination suggesting impairment in olfactory memory and recall; ii.) were less likely to socialize with unfamiliar rats. The data suggests that FSL animals have an impaired olfactory information processing capacity.

https://doi.org/10.1016/j.beproc.2017.08.006