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Improved cognitive performance in trace amine-associated receptor 5 (TAAR5) knock-out mice
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Improved cognitive performance in trace amine-associated receptor 5 (TAAR5) knock-out mice
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Journal Article
Improved cognitive performance in trace amine-associated receptor 5 (TAAR5) knock-out mice
2022
Overview
Trace amine-associated receptors (TAARs) are a family of G protein-coupled receptors present in mammals in the brain and several peripheral organs. Apart from its olfactory role, TAAR5 is expressed in the major limbic brain areas and regulates brain serotonin functions and emotional behaviours. However, most of its functions remain undiscovered. Given the role of serotonin and limbic regions in some aspects of cognition, we used a temporal decision-making task to unveil a possible role of TAAR5 in cognitive processes. We found that TAAR5 knock-out mice showed a generally better performance due to a reduced number of errors and displayed a greater rate of improvement at the task than WT littermates. However, task-related parameters, such as time accuracy and uncertainty have not changed significantly. Overall, we show that TAAR5 modulates specific domains of cognition, highlighting a new role in brain physiology.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
