The homogeneous series (540 tests) gives results as follows:
HOMOGENEOUS SERIES
| Inhibition of Identicals. | Inhibition of Similars. | Inhibition due to Location. | |||||
|---|---|---|---|---|---|---|---|
| Location of the Identicals. | Spot Known | Spot Unknown | Spot Known | Spot Unknown | Spot Known | Spot Unknown | |
| mabcdm | |||||||
| 1 | 1=6 | 1 | 1 | 4 | 5 | ||
| ambcdm | |||||||
| 2 | 2=6 | 5 | 2 | 1 | 3 | ||
| 3 | 3=6 | 2 | 3 | 5 | |||
| 4 | 4=6 | 3 | 3 | 4 | 2 | ||
| 5 | 5=6 | 6 | 15(?) | 4 | 5 | ||
| 6 | 1=5 | 1 | 2 | 1 | 2 | 1 | 3 |
| 7 | 2=5 | 5 | 3 | 3 | |||
| 8 | 3=5 | 3 | 7 | 2 | 1 | ||
| 9 | 4=5 | 2 | 21(?) | 2 | 5 | 3 | |
| 10 | 1=4 | 9 | 4 | 3 | |||
| 11 | 2=4 | 3 | 9 | 4 | 1 | 7 | |
| 12 | 3=4 | 3 | 19(?) | 1 | 2 | 4 | |
| 13 | 1=3 | [107]5+3(?) | 2 | 1 | 10 | ||
| 14 | 2=3 | 1 | 11(?) | 3 | 8 | ||
| 15 | 1=2 | 6(?) | 1 | 4 | 9 | ||
| Total | 19 | 48+75(?) | 6 | 38 | 17 | 71 | |
I. Inhibition
(1) There is considerable inhibition only when identicals are next to each other.
(2) There is but little difference in the amount of inhibition when identicals are removed two and when removed three places.
(3) The interference is greatest when 3d = 4th, 4th = 5th, and 5th = 6th figures, in which schemes it is almost equal in amount.
(4) When identicals are adjacent, it is impossible to decide whether there be inhibition or fusion, i. e., whether one be inhibited and the other appear, or whether the figure seen be a fusion of the two (unless there is an omitted figure whose location is known to the subject). Its intensity does not serve as a clue, for the perception of the number demands the full concentration of the attention.