| | Novel object preference | Object-in-place | Temporal order memory |
|---|
| | Sample phase | Test phase | Test phase | Test phase |
|---|
Young CON | 49.7 ± 2.21 | 47.5 ± 3.01 | 31.1 ± 3.47 | 33.3 ± 2.51 |
Young vitamin D | 48.2 ± 2.93 | 45.9 ± 2.99 | 34.4 ± 3.72 | 35.2 ± 1.88 |
Aged CON | 47.8 ± 1.97 | 46.9 ± 3.15 | 23.7 ± 4.34a
| 20.1 ± 2.43a
|
Aged vitamin D | 49.3 ± 2.10 | 47.5 ± 3.07 | 29.9 ± 4.40 | 11.9 ± 2.16b
|
- Mean exploration time expressed in seconds(s) during the sample and test phases in the novelty recognition test, and during the test phases in the object-in-place and temporal order memory tests. No significant differences were seen in exploration time during the novelty recognition and object-in-place tests. Meanwhile, aged CON rats showed significantly decrease exploration time in the object-in-place and temporal order memory tests after a time delay.
-
a
P <0.05 (significantly different from the young animal groups). **p <0.01 (significantly different overall).
-
b
P <0.01 (significantly different overall).
