Figural After-Effects as a Function of the Retinal Size of the Inspection-Figure

1951 ◽  
Vol 64 (1) ◽  
pp. 99 ◽  
Author(s):  
J. E. Hochberg ◽  
M. E. Bitterman
Keyword(s):  
Retinal Size ◽  
After Effects ◽  
Inspection Figure

Effects of Varying the Apparent Tilt of the Inspection Figure on a Kinaesthetic After-Effect

1967 ◽  
Vol 19 (2) ◽  
pp. 115-124 ◽  
Author(s):  
R. Over
Keyword(s):  
Visual Information ◽  
Frame Of Reference ◽  
The Other ◽  
Inspection Period ◽  
After Effects ◽  
After Effect ◽  
Inspection Figure ◽  
Direction Opposite

Three experiments were conducted to determine whether kinaesthetic after-effects, measured by settings of a bar to the horizontal, are controlled by the apparent or the physical tilt of the bar during inspection. Two arrangements were used to induce a discrepancy between apparent and physical tilt. Data obtained with one arrangement did not permit a proper test of the issue. With the other arrangement either distorted or undistorted visual information about tilt was present during kinaesthetic inspection. It was found that post-inspection settings were displaced from pre-inspection settings in the direction of the tilt of the inspection figure when there was no discrepancy between information presented by the two modalities. When there was a discrepancy, the displacements attributable to apparent tilt were in the direction opposite to the apparent tilt of the inspection figure. The former effects dissipated rapidly after inspection; the latter did not. It is suggested that after-effects obtained following an inspection period during which there is no discrepancy between physical and apparent tilt are controlled by the physical tilt of the inspection figure and that apparent tilt, when it is an effective variable, operates by modifying the judgemental frame of reference.

Drugs and Personality

1960 ◽  
Vol 106 (444) ◽  
pp. 845-851 ◽  
Author(s):  
H. J. Eysenck ◽  
J. A. Easterbrook
Keyword(s):  
The Other ◽  
After Effects ◽  
Set Up ◽  
Inspection Figure

Figural after-effects are the observable results of a hypothetical process of satiation or inhibition which accompanies and follows the passage of neural currents consequent upon stimulation. Most of the work in this field has been on figural after-effects affecting contours. In this work an inspection figure is fixated for a fairly lengthy period of time; this is then withdrawn and two test figures are substituted. One of these test figures falls within the same area as the inspection figure while the other is well removed from this area. Differences in size between the two figures which are objectively equal are usually observed and are supposed to be a consequence of satiation set up by the inspection figure (McEwen, 1958).

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