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. Author manuscript; available in PMC: 2015 Dec 26.
Published in final edited form as: Rev Neurosci. 2011;22(1):75–84. doi: 10.1515/RNS.2011.009

Figure 9.

Figure 9

The three-chamber task for assessing learning and memory (Eddins et al., 2009). (A) To start a trial the fish is in the central chamber. (B) After making an incorrect choice the fish is punished by moving the partition close to the end wall of the apparatus. (C) After a correct choice the fish is left alone with the full-size choice chamber. (D) The partitions on either side can be opened or closed by rotating the access opening to be above or below the water surface. The smaller holes opposite the access opening are present to allow water to pass when the partitions are moved to constrict or enlarge the choice chamber.