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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Ismail, Nyla Robinson, Gene E. Fahrbach, Susan E. |
| Description | Author Affiliation: Ismail N ( Neuroscience Program, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.); |
| Abstract | Honey bees begin life working in the hive. At approximately 3 weeks of age, they shift to visiting flowers to forage for pollen and nectar. Foraging is a complex task associated with enlargement of the mushroom bodies, a brain region important in insects for certain forms of learning and memory. We report here that foraging bees had a larger volume of mushroom body neuropil than did age-matched bees confined to the hive. This result indicates that direct experience of the world outside the hive causes mushroom body neuropil growth in bees. We also show that oral treatment of caged bees with pilocarpine, a muscarinic agonist, induced an increase in the volume of the neuropil similar to that seen after a week of foraging experience. Effects of pilocarpine were blocked by scopolamine, a muscarinic antagonist. Our results suggest that signaling in cholinergic pathways couples experience to structural brain plasticity. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 1 |
| Volume Number | 103 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2006-01-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Physiology Feeding Behavior Mushroom Bodies Metabolism Neuronal Plasticity Neuropil Signal Transduction Analysis Of Variance Animals Muscarinic Agonists Pharmacology Muscarinic Antagonists Toxicity Anatomy & Histology Drug Effects Pilocarpine Scopolamine Hydrobromide Comparative Study Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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