Table 2.
Unadjusted mean scores (and SD) for virtual Morris water maze performance outcomes by group
| Variable | Heterosexual men (N = 44) | Heterosexual women (N = 43) | Gay men (N = 39) | Lesbian/bisexual women (N = 34) | ||||
|---|---|---|---|---|---|---|---|---|
| M | SD | M | SD | M | SD | M | SD | |
| Spatial learning (hidden trials) | ||||||||
| Latency to platform block 1 (s) | 27.68 | 15.01 | 37.81 | 16.48 | 38.26 | 17.60 | 35.17 | 17.11 |
| Latency to platform blocks 2 and 3 (s) | 18.66 | 12.30 | 29.62 | 12.62 | 30.68 | 16.01 | 29.18 | 15.72 |
| Latency to platform blocks 4 and 5 (s) | 16.39 | 12.75 | 24.18 | 12.34 | 26.27 | 16.52 | 23.17 | 14.00 |
| Path length to platform block 1 | 2.38 | 1.45 | 2.59 | 1.53 | 2.48 | 1.38 | 2.63 | 1.57 |
| Path length to platform blocks 2 and 3 | 1.62 | 1.32 | 2.27 | 1.10 | 2.03 | 1.22 | 2.12 | 1.40 |
| Path length to platform blocks 4 and 5 | 1.33 | 1.29 | 1.84 | 1.28 | 1.76 | 1.37 | 1.66 | 1.18 |
| Speed block 1 | .07 | .01 | .06 | .02 | .06 | .02 | .06 | .02 |
| Speed blocks 2 and 3 | .06 | .02 | .07 | .02 | .06 | .02 | .07 | .02 |
| Speed blocks 4 and 5 | .07 | .02 | .07 | .02 | .06 | .02 | .07 | .06 |
| Time in platform quadrant block 1 (%) | 39.62 | 18.61 | 31.80 | 13.06 | 32.82 | 18.14 | 36.30 | 17.22 |
| Time in platform quadrant blocks 2 and 3 (%) | 50.67 | 17.81 | 38.66 | 15.82 | 41.54 | 17.61 | 43.73 | 15.81 |
| Time in platform quadrant blocks 4 and 5 (%) | 53.59 | 16.26 | 45.63 | 16.90 | 46.41 | 19.24 | 48.59 | 17.73 |
| Heading error block 1 (°) | 37.81 | 20.51 | 41.64 | 16.59 | 40.38 | 20.48 | 44.73 | 19.68 |
| Heading error blocks 2 and 3 (°) | 28.75 | 19.60 | 39.24 | 17.43 | 38.99 | 17.64 | 36.05 | 20.01 |
| Heading error blocks 4 and 5 (°) | 21.93 | 17.20 | 31.91 | 17.99 | 32.89 | 22.39 | 30.78 | 19.82 |
| Spatial memory (probe trial) | ||||||||
| Path length to platform | 4.24 | .87 | 3.72 | 1.09 | 3.22 | 1.16 | 3.53 | 1.15 |
| Time in platform quadrant (%) | 57.10 | 20.30 | 39.25 | 23.02 | 48.87 | 28.78 | 48.43 | 25.61 |
| Heading error (°) | 24.48 | 28.12 | 32.97 | 26.49 | 31.22 | 29.10 | 29.13 | 28.66 |
| Cued navigation (visible trials) | ||||||||
| Latency to platform block 1 (s) | 6.81 | .98 | 7.43 | .89 | 8.21 | 1.80 | 7.58 | 1.00 |
| Latency to platform block 2 (s) | 6.21 | .81 | 7.19 | .87 | 7.31 | 1.15 | 6.95 | .79 |
| Path length to platform block 1 | .40 | .01 | .41 | .04 | .44 | .13 | .41 | .04 |
| Path length to platform block 2 | .43 | .11 | .41 | .08 | .40 | .03 | .40 | .03 |
| Speed block 1 | .06 | .00 | .05 | .00 | .05 | .01 | .05 | .00 |
| Speed block 2 | .07 | .01 | .06 | .00 | .05 | .00 | .06 | .00 |
| Heading error block 1 (°) | 3.41 | 3.00 | 4.25 | 6.81 | 5.57 | 11.49 | 4.50 | 11.32 |
| Heading error block 2 (°) | 6.07 | 10.03 | 3.70 | 8.25 | 4.64 | 9.84 | 3.26 | 9.23 |