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HI reduces time spent in the center of an open field in males. On PN27 rats were tested in an open field under bright illumination. The mean (±SEM) time taken to enter the center of the arena and time spent in the center were determined for each group. HI reduced the time spent in the center in males. * indicated a significant difference from same sex controls, p<.05. Note that while HI appears to reduce time in center in females, this did not reach statistical significance.
