Two guinea pigs (cavia porcellus) used as subjects were tested based on choice of geometrical (intra-maze) cues or spatial (extra-maze) cues when searching for food. They were trained in a rectangular box over 13 trials to learn where a treat was placed and then they were tested in a triangular box with 3 rotations to test whether they choose to rely on geometrical cues or spatial cues. Results were not significant and showed no preference for choice of cues. One guinea pig 2/3 of rotation preferred to rely on geometrical cues and the other relied 2/3 times on spatial cues. This leads to 3/6 choices for geometry and 3/6 choices for spatial which amounts to 50% for each cue.
"Geometrical and Spatial Cues,"
The Huron University College Journal of Learning and Motivation:
1, Article 20.
Available at: http://ir.lib.uwo.ca/hucjlm/vol45/iss1/20