| Autor: |
Gene K. Wong, Sara M. Abbott |
| Rok vydání: |
2008 |
| Předmět: |
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| Zdroj: |
BIOS. 79:160-170 |
| ISSN: |
0005-3155 |
| DOI: |
10.1893/0005-3155-79.4.160 |
| Popis: |
Planaria (Dugesia tigrina) are freshwater flatworms that are frequently studied because of their simple well-defined nervous system. Previous studies concluded that planaria can be trained to favor a direction in a Y- or T-maze using shock or other negative stimuli, but many of these experiments performed few overall runs and/or tested few individuals. The current study examines whether planaria have a directional bias and the ability to learn by using Y-mazes. The pre-conditioning period determined initial directional bias and was used to assign training directions. The conditioning period used electrical shock as a negative stimulus to condition planaria to select a specific turning direction in the Y-maze. Post-conditioning tested whether planaria maintained their learned behavior. Control planaria were not shocked during the conditioning period. Each period consisted of 3 trials with 10 runs in each trial. When examining the results of a single trial, many planaria demonstrated a directional ... |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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