PRECOGNITIVE PERCEPTION OF FACIAL PHOTOGRAPHS

Precognitive perception of photographic portraits was studied with the meta-contrast technique. The portraits were presented for successively increasing exposure times immediately before another stimulus with a constant, relatively long exposure time. The faces were masked, and their effect had therefore to be recorded in the form of impressions of modifications in the stimulus object appearing later. The effect was most evident at the beginning and end of the exposure series     

THE IMPORTANCE OF COLLATIVE-AFFECTIVE AND INTENSIVE AROUSAL POTENTIAL IN STEREO-SCOPICALLY INDUCED PERCEPTUAL CONFLICT

In perceptual conflict of the binocular rivalry type the object field with the greatest collative-affective or intensive arousal potential will dominate. The interaction between these two factors is such that the brighter field will dominate over the fainter whether there is greater or equal collative-affective arousal potential in one of the object fields in relation to the other. Discussion is centered around the question of whether eventual eye dominance can be eliminated through relative changes in the light intensity of the two object fields.     

A COMPARISON BETWEEN CHILDREN AND ADULTS IN A PRISONERS' DILEMMA GAME

S jöberg , L., B okander , I., D encik , L. & L indbom , K. A comparison between children and adults in a prisoner's dilemma game. Scand. J. Psychol ., 1969, 10 , 158–166.— A comparative study using three different stooge strategies. The game was played for a total of 67 trials. Children (4–6 years old) exhibited more cooperation than adults, and a stronger tendency to make a cooperative move after own defection, regardless of outcome. Both the frequency of cooperative moves and the state-conditioned propensities showed some stability over time and similar intercorrelations for adults and children.     

OBJECTIVE INDICATORS OF PERCEPTION

B okander , I. Objective indicators of perception. I. Simple reaction-time. Scand. J. Psychol ., 1962, 3, 192–195.—This paper demonstrates that simple reaction-time, viz. the time interval between the onset of a meaningful picture stimulus and a simple motor response, is dependent upon the nature of the picture in such a way that stimuli selected to produce more involvement give longer reaction-times. Two experiments were performed. In the first, involving and neutral stimuli were centered around the middle of the pictures, while the second pair of pictures differed with respect to peripheral qualities.     

THE SOLUTION OF PERCEPTUAL CONFLICT BETWEEN STEREOSCOPICALLY PRESENTED FACIAL PHOTOGRAPHS

In stereoscopically induced perceptual conflict between different but not too disparate facial photographs, a fusion appears that is gradually experienced as more evaluated and less dynamic in a semantic system of coordinates. Individual differences in the process of conflict resolution are partly related to data from a test (the Serial Colour-Word Test) that is intended to measure general ways of adaptation to a conflicting situation.