Chronic treatment with a GPR30 antagonist impairs acquisition of a spatial learning task in young female rats

We hypothesize that the beneficial effects of estradiol on cognitive performance may be mediated through GPR30, a putative membrane target of estrogens. Recently we showed that administration of a selective GPR30 agonist (G-1) to ovariectomized rats enhanced acquisition of a delayed matching-to-position (DMP) T-maze task and increased potassium-stimulated acetylcholine release in the hippocampus, similar to […]

Behaviour of proactive and reactive tilapia Oreochromis niloticus in a T-maze

Knowing that individuals with different coping strategies can exhibit different behaviours in associative learning, we evaluated the learning capacity of proactive and reactive tilapia fish. Trained and untrained, proactive and reactive, tilapia were subjected to a T-maze and their behaviour observed while searching for food using landmarks. Forty-four tilapia were first divided into reactive and […]

The effect of feeding enrichment in the milk-feeding stage on the cognition of dairy calves in a T-maze

In many species, environmental complexity is known to affect cognitive development, yet it is common to house dairy calves individually in restrictive environments. The hypothesis of this study was that providing calves with simple nutritional enrichments would improve their success in a cognitive task and reduce reactivity to novel stimuli. Individually-housed Holstein heifer calves were […]