KFAE: Satiation or reactive inhibition? An experimental investigation
S.N. Rai
One hundred and sixty undergraduates (80 male and 80 female) were randomly selected as Ss and divided into two experimental groups, i.e., `S-Group' (Satiation group) and `F-Group' (Fatigue group). Ss of S-Group held the I-block between thumb and index finger of their hands. S's hand was static and such arrangement was made so that I-block was moving up and down rubbing both the fingers of S at a speed of one rubbing per sec., but Ss of F-Group rubbed their fingers against the I-block by moving their hands up and down at a rate of one rubbing per second. Four I-durations, 15, 30, 45 and 60 sec. were used and 20 Ss (10 male and 10 female) from both the groups received the I-block for any of the above-mentioned periods. Sixteen pre-experimental and 16 experimental judgments obtained by both the groups were averaged and then analysed by using t test and following results were obtained:
(a) KFAE (Kinesthetic figural after effect) phenomenon is observable only among the Ss of `F-Group' and not among S-Group, (b) Sex of Ss affect the magnitude of KFAE and (c) I-durations are found as a significant factor. These results were interpreted in the framework of Bull's reactive inhibition.