. Experiments in Educational psychology. 70 6 100 30 20 60 90 70 7 5 100 40 20 10 30 70 12 100 50 16 20 70 100 14 TOO 30 16 70 70 90 7 5 100 40 12 65 80 2. The Fluctuation or Shifting of the Attention. Our attention shifts continuously from moment to with great effort it is impossible to keep the attentionfocussed for more than a few seconds upon the same ideaor object. a. Look steadily at the central line; in the book figure below. You will notice that the figure flops inand out. Part of the time it looks like a book opentoward you, and part of t
. Experiments in Educational psychology. 70 6 100 30 20 60 90 70 7 5 100 40 20 10 30 70 12 100 50 16 20 70 100 14 TOO 30 16 70 70 90 7 5 100 40 12 65 80 2. The Fluctuation or Shifting of the Attention. Our attention shifts continuously from moment to with great effort it is impossible to keep the attentionfocussed for more than a few seconds upon the same ideaor object. a. Look steadily at the central line; in the book figure below. You will notice that the figure flops inand out. Part of the time it looks like a book opentoward you, and part of the time like a book with itsback toward you. Make a two minutes record of thesealternations. At the signal now from your partner,look steadily at the figure. Do not change your point offiixation. When the figure appears like a book open toward 156 EXPERIMENTS IN EDUCATIONAL PSYCHOLOGY you say in. At the moment it shifts over so that theback of the book stands out toward you say out,and so on for two minutes. Do not try to make the fig-. FiG. 23. ure change, but allow the alternations to occur at theirnatural rate. Your partner follows the second-hand ofhis watch and records the position of the hand each timeyou say in or out. The record will be similar tothe following one: , 15 23 30 38 47 57 5 1419 26 35 42 50 I 10 etc. Compute the average length of the in and of the out periods separately. ATTENTION 157 TABLE XIII RECORDS OF TWELVE PERSONS, SHOWING THE AVERAGE DURATION OFTHE in and out PERIODS Inperiods Out periods I. 7-8. 4-4 7 6 51 5 7 6 5 3 0 3-2 3 9 4 8 30 3 7 5 3 2 4 7 4 3 5 4 2 Average 4-4 48 b. (i) Look at the figure below for two minutes andnotice that your attention periodically wanders off tosomething else. As soon as you catch your attention off
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