Table 6.

Grid Scores, Elliptical Grid Scores, and Cartesian Scores^a

Species	Grid scores	Elliptical grid scores	Cartesian scores
Shrew	−0.02 ± 0.84	0.73 ± 0.21	0.58 ± 1.15
Mouse	0.35 ± 0.11	0.55 ± 0.09	0.14 ± 0.30
Rat	0.28 ± 0.43	0.84 ± 0.23	0.00 ± 0.15
Egyptian fruit bat	0.52 ± 0.35	0.81 ± 0.04	0.45 ± 0.42
Human	0.36 ± 0.39	1.18 ± 0.10	0.28 ± 0.39

^aAverage grid scores with and without elliptical modifications and cartesian scores. Scores are represented as mean ± SD and are based on nine samples in rats, two samples in shrews, and three samples each for mice, bats, and humans.