Published in Learning & Behavior, this study investigated the nature of incidental spatial memory in domestic dogs. Building on earlier work by Fujita et al. (2012), the authors specifically aimed to disentangle memory for spatial location (“where”) from memory for object characteristics (“what” and “in what”).
Eighteen household dogs of various breeds and ages participated in an experimental task requiring no specialized training beyond basic obedience. Dogs were initially exposed to four bowls, each containing a different condition: a novel object, consumable treats, non-consumable treats, or no contents.
After a delay, dogs returned to the laboratory and were presented with empty bowls positioned in the same spatial configuration as during the initial exposure. The dogs were allowed to move freely between bowls, creating an unexpected memory test designed to assess incidental encoding rather than learned or reinforced responses.
Contrary to the researchers’ hypothesis, dogs showed no evidence of remembering the spatial location of the uneaten food when no distinctive cues differentiated the bowls or their locations. Performance did not exceed chance levels, indicating that pure spatial location was not reliably encoded.
The findings suggest that in previous studies where dogs appeared to demonstrate incidental spatial memory, their performance may have depended more on encoding the identity and contextual features of objects rather than abstract spatial coordinates. When locations lacked distinguishing features, spatial memory alone was insufficient to guide behavior.
The authors conclude that canine memory for food-related events is highly cue-dependent and that dogs may prioritize information about objects and their characteristics over spatial location in incidental memory tasks. This work refines our understanding of canine cognition and highlights important boundary conditions for interpreting dogs’ spatial memory abilities.
Source: Sluka, C. M., Stanko, K., Allen, C., et al. (2018). Incidental spatial memory in the domestic dog (Canis familiaris). Learning & Behavior. Published May 29, 2018.
