. Behavior monographs. Animal behavior. 32 JOSEPH PETERSON 346 more entrances to 1 (long) than did the control animals for which 2 was left full length; they also made 18 more returns to the starting place in the maze. This not only required that 2 shortened be passed more times than 2 long, but also with greater probability of entrance for each time. It was noted that rats entering 1 were likely thereby to be thrown out of Av. number Per Period. 96-i05 116-135 Figure VII.—L shows rate of elimination of all entrances to ciil de sac 1 long, Maze IB, and S same for 1 short, Maze I IB. E' and E s
. Behavior monographs. Animal behavior. 32 JOSEPH PETERSON 346 more entrances to 1 (long) than did the control animals for which 2 was left full length; they also made 18 more returns to the starting place in the maze. This not only required that 2 shortened be passed more times than 2 long, but also with greater probability of entrance for each time. It was noted that rats entering 1 were likely thereby to be thrown out of Av. number Per Period. 96-i05 116-135 Figure VII.—L shows rate of elimination of all entrances to ciil de sac 1 long, Maze IB, and S same for 1 short, Maze I IB. E' and E show corresponding percentage eliminations. orientation and to make other errors. There can therefore be little doubt that if 2 had been the only blind alley in the maze, it would have formed no exception to the general rule. The greater number of entrances to 4 shortened than to 4 long (86 to 69) is due to the fact that rats emerging from 5 had a strong tendency to run into 4. A glance at the maze will show why this is to be expected. There were 32 more returns from 5 long than from 5 short; furthermore, entrance to 5 long had the greater tendency to disorient the animal so that entrance to 4 would be an increased probability. Just why 8 short should have been entered 51% more than 8 long is not easy to. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Baltimore [etc. ], William & Wilkins Co. [etc. ]
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