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. Author manuscript; available in PMC: 2013 Jan 1.
Published in final edited form as: Behav Brain Res. 2011 Sep 8;226(1):66–76. doi: 10.1016/j.bbr.2011.09.001

Figure 2.

Figure 2

The percent of time zebrafish moved erratically is significantly increased by the bird silhouette (shown from the side or the top) as well as the Dot shown from the top. Mean ± S.E.M. are shown. Sample sizes (n) are indicated in the text. White bars represent performance during the pre-stimulus (habituation) period, black bars represent the stimulus period performance and grey bars the post-stimulus period performance. The stimulus type employed is indicated above the bar graphs. Note that erratic movement was absent in response to the attractive stimuli (the zebrafish images) and also was very rarely observed in response to the needle fish.