Domestic hens have declarative representations

摘要: It is generally considered that information can be stored either as a procedural or declarative representation. A devaluation technique was used to determine whether hens have representations. Individual (Gallus gallus domesticus) were fed in an enclosure with two containers, each new food type. One of the types devalued by pre-feeding food, after which tested empty containers. The should only affect choice if they learned where particular type (declarative representation) rather than “go left when coming into enclosure” (procedural representation). significant proportion went location previously occupied non-devalued (seven out eight). This supports hypothesis domestic form