Psychological Research

Emrich, H.; Heinemann, L.

doi: 10.1007/BF00421754pmid: 5929416

Emotional besetzte und neutrale Wörter wurden 16 gesunden Versuchspersonen mit langsam steigender Lichtintensität geboten. Durch ein Signal hatten sie den Moment der Wahrnehmung des ersten Lichtscheins anzugeben, durch ein zweites die ersten Umrisse; ein drittes gaben sie, wenn sie das Wort erraten konnten, und ein viertes, wenn es sicher lesbar war. EEG und EKG wurden während der ganzen Zeit abgeleitet.

Prinz, Wolfgang

doi: 10.1007/BF00421755pmid: 5929417

The intention of the paper is to describe “Prägnanz”-phenomena in terms of information theory. Two different concepts for the application of informational variables to perceptual processes are discriminated. For several reasons, Attneave's concept (1951) is preferred: In the sense of information theory single figures can be treated as signal structures; thus the degree of regularity in them should be specifiable in terms of informational variables.

Badman, David

doi: 10.1007/BF00421756pmid: 5929418

1. The orientation of fresh-water snails (Physa pomillia) in a symmetrical magnetic field was studied from February to March and from September to October, 1965, during the hours 8:30 to 17:30. 2. The orientation of the snails was studied in an augmented magnetic field, 9 times that of the earth's field at Gainesville, Florida, with a bar magnet aligned parallel and at right angles to the earth's magnetic field. Control experiments were performed with the bar magnet removed from the apparatus. Possible effects of the magnetic field were tested under two different light conditions, using a window centered above the orientation platform, and one placed above and ahead of it. 3. Under the given experimental conditions the snails showed no significant right- or left-turning. 4. The time of year did not appear to affect the behavior of the snails in the arena. 5. Snails moving in the uniformly diffuse light from the centered window scattered over the whole range of the arena. Snails in the light gradient caused by the eccentric window oriented toward the point on the floor of the arena at which the light intensity was greatest (positive phototaxis). 6. Physa pomillia did not orient with respect to the direction and strength of the magnetic fields used.