What the experimenter’s prime tells the observer’s brain

The presentation of a stimulus below the threshold of conscious awareness can exert an influence on the processing of a subsequent target. One such consequence of briefly presented “primes” is seen in the negative compatibility effect. The response time (RT) to determine the left—right orientation of an arrow (i.e., the target) is relatively slow if a prime is also an arrow whose direction corresponds to that of the target. When the direction of the arrow is opposite that of the prime, RTs are relatively fast. In four experiments, we examined whether the prime shifts attention from the location of the subsequent target and whether this attention shift influences target processing. Results showed that the prime does indeed move attention. The consequence of this attention movement is that the representation of direction is affected. Specifically, RTs to process an arrow are shorter if the arrow’s direction is compatible with the last shift of attention. Furthermore, this interference occurs at a conceptual level concerning the representation of left and right rather than at the motor planning level. We argue that a shift in attention brought about by the prime can create a negative compatibility-like effect.     

Onset of illusory figures attenuates change blindness

We examined whether the onset of a new object defined by illusory contours is detected with greater frequency than offset when neither is associated with a unique sensory transient. Observers performed a “one-shot” change detection task in which offsetting or onsetting elements of high luminance contrast circles generated the appearance or disappearance of a Kanizsa figure. Presenting “illusory figures” via this “flicker” method ensures that (1) any unique luminance transients associated with the two types of change are eliminated, and (2) the objects themselves can only be represented at a relatively high level. Results showed that offsets were detected more frequently than onsets only when they generated the onset of a Kanizsa figure. We argue that object appearance dominates object disappearance via mechanisms that operate at the level at which objects are constructed.     

The Experiences of Guilt and Shame: A Phenomenological–Psychological Study

This study aims at discovering the essential constituents involved in the experiences of guilt and shame. Guilt concerns a subject’s action or omission of action and has a clear temporal unfolding entailing a moment in which the subject lives in a care-free way. Afterwards, this moment undergoes a reconstruction, in the moment of guilt, which constitutes the moment of negligence. The reconstruction is a comprehensive transformation of one’s attitude with respect to one’s ego; one’s action; the object of guilt and the temporal-existential experience. The main constituents concerning shame are its anchorage in the situation to which it refers; its public side involving the experience of being perceptually objectified; the exclusion of social community; the bodily experience; the revelation of an undesired self; and the genesis of shame in terms of a history of frozen now-ness. The article ends with a comparison between guilt and shame.     

Language games,or As you like it: A reply to Gergen

Afrer noting some areas of common ground, in particular my acceptance of the fact that causal analysis is not sufficient to capture motivation and meaning, the main disagreement is pinpointed: in my view causal explanations are relevant to human actions. In response to Gergen's contention that cross-cultural replications have no bearing on theories, which essentially turn on language games, I submit that his account of cross-cultural work is in several respects misleading. It is suggested that ignoring the striking regularities of social behaviour runs the risk of a return to empty scholasticism.     

PICTORIAL DEPTH PERCEPTION IN SCOTTISH AND GHANAIAN CHILDREN

Published research employing the Hudson Test is critically examined, leading to the conclusion that differences in methods and procedures make direct comparisons of the outcome of different studies inappropriate. Some limitations of the test itself are pointed out, in particular the ignoring of chance expectations, failure to exclude the operation of response sets, and ambiguities about the scoring. Tentative generalizations emerging from previous research are summarized, and the object of the study is to verify them. A newly developed test of three-dimensional perception is described, which also consists of pictures but requires less reliance upon verbal instructions. Samples of 60 Scottish and 60 Ghanaian primary school children in classes 2, 4 and 6 were tested with both the Hudson and the new test. While results still indicated a significant cultural difference in the performance on both tests, Ghanaian children experienced much less difficulty with the new test and the gap between them and Scottish children was relatively small as compared with the Hudson Test result. It is concluded that measured ability to perceive pictorial depth is in considerable part a function of the specific method used for assessment, and that African shortcomings with regard to this ability have probably been exaggerated in the past.     

The foundation of the institute for experimental psychology at Leipzig University

Summary During the 1979–80 academic year psychologists from all over the world will celebrate the centennial of the Institute for Experimental Psychology at Leipzig University, established by Wilhelm Wundt during the winter of 1879–80. First, this paper will present the historical context in which the laboratory method of research instruction developed in nineteenth-century Germany. Next, Wundt's extensive experience with laboratory research before coming to Leipzig will be described. Finally, the origin, development, and organization of Wundt's laboratory will be chronicled, beginning with his call to Leipzig. The implications of Wundt's achievement for modern psychology will be discussed. Emphasis is placed on the use of archival materials, documents, and eyewitness accounts.A slightly modified version of this paper was presented as an Invited Centennial Lecture at the Annual Meeting of the American Psychological Association in New York on September 4, 1979The preparation of this article was supported by a research award from the Dr. W.W. Kaempfer, the Dean of the College of Arts and Sciences, University of South Alabama, Mobile, Alabama, USA     

UNDERSTANDING THE MECHANISM OF BICYCLES A CROSS-CULTURAL STUDY OF DEVELOPMENTAL CHANGE AFTER 13 YEARS1

Cette étude a, pour point de départ, l'observation faite en 1953 par un anthropologue, que le principe du levier, et par conséquent celui des machines comme la bicyclette, n'était en général pas compris dans l'Ouest africain. l'A. a mis au point une méthode pour mesurer, à partir des dessins réalisés par les sujets, le degré de compréhension du fonctionnement de la bicyclette. En 1955, à Accra, une étude génétique a été menée sur des enfants de 6 à 15 ans; la même étude a été refaite en 1968, pour les mêmes âges; enfin, une expérience identique a été réalisée avec un échantillon comparable d'enfants habitant un quartier ouvrier de Glasgow. Plus de 2 000 dessins ont été recueillis dont 600, pris au hasard, ont été analysés. Les résultats des enfants africains (garçons) montrent, entre 1955 et 1968, une amélioration très significative : nettement inférieurs à ceux des garçons de Glasgow en 1955, ils atteignent, en 1968, le même niveau; par contre, les résultats des filles d'Accra ne changent pas.