Table 2.
Descriptive statistics of the variables analyzed in the free-exploration test (Phase II).
| Trial | Female | Male | ||||||
|---|---|---|---|---|---|---|---|---|
| HB_H | HB_L | HB_H | HB_L | |||||
| Mean | Stdv | Mean | Stdv | Mean | Stdv | Mean | Stdv | |
| Time spent in the transporter (seconds) | ||||||||
| H | 53.489 | 16.865 | 78.091 | 21.987 | 57.950 | 18.938 | 71.255 | 30.743 |
| T1 | 25.497 | 14.998 | 33.446 | 24.695 | 21.100 | 10.088 | 28.471 | 10.855 |
| T2 | 27.500 | 11.119 | 39.975 | 25.770 | 38.097 | 13.819 | 38.350 | 25.722 |
| T3 | 31.250 | 9.284 | 19.147 | 8.359 | 62.600 | 20.514 | 40.725 | 17.311 |
| Time spent in the central zone of the chamber (seconds) | ||||||||
| H | 87.382 | 17.671 | 129.922 | 18.244 | 103.405 | 28.115 | 131.752 | 31.083 |
| T1 | 42.113 | 16.224 | 86.806 | 26.956 | 65.422 | 28.689 | 88.218 | 30.795 |
| T2 | 44.400 | 22.570 | 92.755 | 31.475 | 62.176 | 17.438 | 90.301 | 35.716 |
| T3 | 86.138 | 40.483 | 86.452 | 32.073 | 83.218 | 26.809 | 100.955 | 30.661 |
| Time spent in the unchanged zone of the chamber (seconds) | ||||||||
| H | 118.484 | 15.684 | 80.812 | 18.546 | 142.643 | 28.925 | 128.811 | 36.466 |
| T1 | 69.950 | 29.519 | 52.200 | 22.475 | 77.350 | 20.072 | 77.278 | 36.888 |
| T2 | 79.050 | 26.858 | 97.819 | 36.724 | 93.001 | 31.368 | 63.225 | 35.026 |
| T3 | 80.276 | 27.460 | 107.424 | 38.002 | 78.147 | 29.488 | 81.350 | 32.115 |
| Time spent in the changed zone of the chamber (seconds) | ||||||||
| H | 158.247 | 28.266 | 127.658 | 21.996 | 113.634 | 22.628 | 85.126 | 17.594 |
| T1 | 279.091 | 43.538 | 244.774 | 43.715 | 254.278 | 37.004 | 223.808 | 33.103 |
| T2 | 268.749 | 26.178 | 186.350 | 33.690 | 223.852 | 40.256 | 226.049 | 63.430 |
| T3 | 219.426 | 46.717 | 203.725 | 44.906 | 193.411 | 28.945 | 194.200 | 48.507 |
| Frequency of moving between the zones (left/right/transporter) of the chamber | ||||||||
| H | 16.600 | 4.537 | 18.200 | 2.654 | 19.100 | 2.648 | 18.500 | 4.238 |
| T1 | 13.500 | 5.462 | 17.000 | 3.367 | 15.200 | 3.011 | 15.700 | 2.869 |
| T2 | 11.800 | 4.341 | 16.200 | 3.490 | 17.000 | 3.266 | 15.400 | 2.836 |
| T3 | 15.400 | 3.596 | 15.400 | 2.989 | 17.000 | 3.528 | 15.500 | 1.780 |
| Time spent in contact with the tunnels in the unchanged zone of the chamber (seconds) | ||||||||
| H | 81.598 | 12.940 | 47.508 | 14.835 | 98.234 | 23.204 | 80.869 | 39.429 |
| T1 | 48.350 | 23.602 | 30.000 | 14.163 | 51.704 | 14.573 | 48.825 | 29.438 |
| T2 | 61.747 | 22.725 | 74.880 | 37.181 | 67.179 | 25.447 | 39.950 | 32.483 |
| T3 | 63.954 | 25.023 | 80.030 | 32.701 | 56.068 | 20.425 | 55.650 | 30.935 |
| Frequency of contact with the tunnels in the unchanged zone of the chamber | ||||||||
| H | 6.533 | 1.492 | 5.133 | 0.706 | 8.733 | 2.372 | 7.367 | 1.222 |
| T1 | 4.500 | 1.958 | 4.700 | 1.636 | 6.300 | 1.567 | 5.400 | 1.776 |
| T2 | 4.800 | 1.398 | 4.900 | 1.370 | 6.800 | 1.989 | 4.600 | 1.174 |
| T3 | 4.700 | 1.337 | 5.200 | 0.632 | 6.100 | 2.079 | 5.400 | 1.174 |
| Time spent in contact with the tunnels in the changed zone of the chamber (seconds) | ||||||||
| H | 111.982 | 19.581 | 76.694 | 14.877 | 75.809 | 18.746 | 51.297 | 17.797 |
| T1 | 248.350 | 43.400 | 200.213 | 40.112 | 220.723 | 40.276 | 175.604 | 35.720 |
| T2 | 243.399 | 30.898 | 152.952 | 32.536 | 192.424 | 37.455 | 182.876 | 56.932 |
| T3 | 195.926 | 46.201 | 166.971 | 44.976 | 164.299 | 23.887 | 157.450 | 48.469 |
| Frequency of contact with the tunnels in the changed zone of the chamber | ||||||||
| H | 7.700 | 1.836 | 7.500 | 1.672 | 7.100 | 1.277 | 6.333 | 1.812 |
| T1 | 8.400 | 2.716 | 10.100 | 1.853 | 8.200 | 2.150 | 8.900 | 2.424 |
| T2 | 6.900 | 1.370 | 7.600 | 0.966 | 9.600 | 2.171 | 8.900 | 2.726 |
| T3 | 8.000 | 2.261 | 8.500 | 2.550 | 9.000 | 2.867 | 8.800 | 3.458 |
HB_H—high-activity group; HB_L—low-activity group; Stdv—standard deviation; H—habituation trials; T1—first test trial; T2—second test trial; T3—third test trial.