Object permanence in cats and dogs

Object Permanence in Adult Cats (Felis catus)

Human analog tests of object permanence were administered to adult cats in order to assess as accurately as possible their developmental level in this particular cognitive capacity and to analyze their search behavior in situations in which an object has disappeared. Experiment 1 compared two groups, one that received the tests in their usual order of presentation and another that received firs...

Object permanence in dogs: invisible displacement in a rotation task.

Dogs were tested for object permanence using an invisible displacement in which an object was hidden in one of two containers at either end of a beam and the beam was rotated. Consistent with earlier research, when the beam was rotated 180 degrees , the dogs failed to find the object. However, when the beam was rotated only 90 degrees , they were successful. Furthermore, when the dogs were led ...

Object Permanence 1

Association, inhibition, and object permanence in dogs' (Canis familiaris) spatial search.

The relative role of associative processes and the use of explicit cues about object location in search behavior in dogs (Canis familiaris) was assessed by using a spatial binary discrimination reversal paradigm in which reversal conditions featured: (1) a previously rewarded location and a novel location, (2) a previously nonrewarded location and a novel location, or (3) a previously rewarded ...

Pancreatitis in Dogs and Cats

The fundamental mechanism of disease in pancreatitis is autodigestion of pancreatic tissue by digestive enzymes that are prematurely activated within the pancreatic acinar cells. Normally, pancreatic digestive enzymes are released from the pancreas as inactive precursor zymogen granules. Trypsinogen within these granules is proteolytically cleaved and activated when it reaches the duodenal lume...