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Cognitive decline is found to be a common feature of various neurological disorders like Alzheimer’s disease (AD). In order to recapitulate AD associated cognitive deficits and to plan therapeutic strategies researchers have developed various preclinical dementia models to recapitulate different aspects of cognitive domains affected in AD brain. So, the present study was aimed to compare alterations in previously reported dementia models i.e. pharmacological (Scopolamine-induced and corticosterone-induced), Environmental (Aluminium-induced and noise-stress) and physiological (natural aging) models in rats in a single experimental study across three cognitive domains spatial, recognition, and associative memory and associated alterations in their oxidative status and neurochemical profile to select appropriate dementia model. All groups received their respective treatments for 14 days after which …