Labyrinth-B Experiments
NO. 7 NO. 998
TEST DATE TIME ERRORS TIME ERRORS
1 June 16 66" 8 127" 19
2 16 11 0 94 12
3 16 15 2 18 3
4 16 7 0 13 2
5 16 5 0 10 1
6 18 61 15 12 3
7 18 13 3 14 4
8 18 14 5 8 1
9 18 24 9 16 2
10 18 10 1 9 1
11 19 36 13 80 17
12 19 8 3 10 1
13 19 6 1 7 1
14 19 9 1 8 0
15 19 12 2 7 0
16 20 14 1 25 0
17 20 28 3
18 20 No efforts No efforts
to escape to escape
TABLE 32
LABYRINTH-B EXPERIMENTS
with
Electric Shock given as Punishment for Mistakes
No. 7 No. 998
TEST DATE CONDITION ERRORS CONDITION ERRORS
1 June 29 Light 4 Light 9 2 29 Light 1 Light 3 3 29 Light 1 Light 2 4 29 Light 0 Light 0 5 29 Light 0 Light 0 6 29 Light 0 Light 0 7 29 Light 1 Light 0 8 29 Light 0 Light 0 9 29 Light 1 Darkness 0 10 29 Light 1 Light 0 11 29 Light 1 Darkness 0 12 29 Light 0 Light 0 13 29 Light 0 Light 0 14 29 Light 0 Light 0 15 29 Light 0 Light 0 16 29 Light 0 Light 0 17 29 Darkness 2 Darkness 0 18 29 Light 2 Light 0 with paper 19 29 Light 0 Light 0 20 29 Darkness 0 Light 0 with paper 21 29 Light 0 Light 0 22 29 Light 0 Darkness 0 23 29 Light 0 Odorless 0 24 June 29 Light 0 Darkness 0 25 29 Light 0 26 29 Darkness 4 27 29 Light with paper 1 28 29 Light 0 29 29 Light with paper 1 30 29 Darkness 0 31 29 Odorless 2 32 29 Darkness 4
As the results in Table 31 show, the time and number of errors rapidly diminished. Number 7, for example, made no errors in the second test. The chiefly significant fact which appeared in these preliminary experiments, however, was that the mice soon ceased to care whether they got out of the labyrinth or not. After they knew the path perfectly, they would enter the wrong passages repeatedly and wander about indefinitely. It was obvious, therefore, that the labyrinth could not be used to reveal the role of sight unless some sufficiently strong motive for continuous effort to escape from it could be discovered. Naturally I looked to the electric shock for aid.