準φ現象に伴う時間場の移動

抄録

It seems to be one of the remarkable differences between the tempral effect on space perception, i. e. Gelb phenomenon (23) and the spatial on time perception, i. e. Abbe phenomenon (23), that φ phenomenon appears obviously with the former (1, 12) but vaguely with the latter (6, 11, 8).
However, φ phenomenon is dependent upon the set of the observer for its appearance and is often destroyed by an analytical set. With respect to time perception, if the observer assumes an analytical set and divides up mentally the temporal course of the oncoming stimuli at the their initial appearance, it is strongly influenced. We may consider that quasi-φ phenomenon occurs even in these situations in such a manner as shown in table 1 in the optic sector of sense-physiological process in accordance with Köhler's stream-pole theory (3a). Korte's law (4, 5c) and Schiller's law (14, 23), which were found by them with respect to φ phenomenon, should also be applied to quasi-φ pheno-menon (table 2, 3).
The experimental setting is indicated in table 4 & 5, in which you can see spatial intervals. The time interval t0 was 235σ, and equi-stimulus time interval t was determined by the method of limits (step width=4.7σ), continual observation, and simultaneous comparison. Stimuli were as follows : P0D0 were angles (∠60°, length of a side=25mm, breadth=3mm), P, D & D_s were small circles (2r=3mm), F was a fixation-point (2r=2mm), all of which were illuminated by neon lamps of 100 V. each.
The strength of TF (cf. 8) is represented by the formula τ= (t₀-t) ^-1 for the experiments of one point method, and by [τ′] L₁L₂L₂′=[t₀-t]^-1L₁L₂L₂′ for the experiments of two points method.
Does quasi-φ phenomenon in stroboscopic presentation accompany the displacement of temporal field from the initial spot P0 (IS) to the last spot D0 (TS0) of quasi-φ phenomenon?
1° TF left side the IS P0 (table 3 & 2, fig. 4 & 5) :
Series D0DP0-At first P0 was presented as IS momentarily, then D₀ as TS₀ and D as TS followed simultaneously. The time shortening force i. e. the strength of the TF at D : [τ′] D0DP0>0 whereas distance D₀P₀>DP₀ and D₀D>0. So hte time shortening force may affect the left side of D from D₀ when quasi-φ takes place. Series DsDP₀-[τ′]DsDP<0 whereas D₀P₀>DP₀. So the time shortening force may affect the right side of D from P₀ when quasi-φ does not take place. Series D₀D₀D-At first D₀ was presented as IS momentarily, then D₀ again as TS₀ and D as TS followed simultaneously.τ>0 and moreover τ≅[τ′]D₀DP₀. Series P₀P₀D-τ>0 and moreover τ<[τ′]D₀DP₀, yetτ of P₀P₀D<τ of D₀D₀D. For these reasons the TF must move from P₀TD₀, and the TF of D₀ must affect D stronger than the TF of P₀, D being neare to D₀ than to P₀. 2° TF right side the IS P₀ (table 4, 2 & 3, fig. 4 & 5) : Series D₀PP₀-[τ′]DoPP₀>0 whereas D₀P₀=4P₀P₀ and D₀P₀<D₀P. So the TF must have moved. Series D₀D₀P-τ>0, τ<[τ′]D₀PP₀. So the TF of P₀ must yet temain somewhere when the TF moves in company with quasi-φ.