Naloxone-injected (1.0 mg/kg) and saline-injected control rats were subjected to a two-trial test of object localization memory. In trial I rats were allowed to explore for 5 min an enclosed T-maze with an object (plastic bottle) placed in one maze arm. Then, the object was removed and after a 20-min retention interval rats were faced with two empty arms of the same maze (trial II). Control rat...

• hnRNPLL is abundantly expressed in immune memory T lymphocytes and the brain. hypomorphism thunder mice ( hnrpll ) causes cell deficits. show enhanced tail suspension immobility reduced learning/memory. subtle prepulse intensity-related inhibition. No changes forced swim test, plus-maze, startle or exploratory habituation. Heterogeneous nuclear ribonuclear protein l -like (hnRNPLL) an RNA bin...

Approximately 50% of New Zealand Black (NZB) mice ectopic NZB mice demonstrated learning impairments in have neocortical ectopias, which are misplaced clusters of the Lashley maze when compared to non-ectopic controls. neurons located in layer I of cortex [17,18]. Previous We used a water version of the Lashley III maze that experiments have found that ectopias in NZB mice were can be learned b...

Data on the effects of serotonin reuptake inhibitors on learning and memory processes are not consistent. In the present study, the effects of citalopram, a very potent and completely selective inhibitor of the serotonin reuptake on spatial discrimination in the T-maze and Morris water maze, were assessed in mice and/or rats. Animals received different doses of citalopram (1, 2, 4, 8 or 16 mg/k...

In autonomous agent systems, internal memory can be an important element to overcome the limitations of purely reactive agent behaviour. This paper presents an analysis of memory requirements for T-maze tasks well known as the road sign problem. In these tasks a robot agent should make a decision of turning left or right at the T-junction in the approach corridor, depending on a history of perc...