Punishment by noise in an alternative response situation

Operant responses of human subjects were conditioned according to a variable-interval schedule of positive reinforcement. A brief noise was delivered as punishment for each of the responses. The noise suppressed the punished responses more when an alternative unpunished response was concurrently available than when only a single punished response was available. This finding extends the generality of a previous study that had used a period of extinction rather than the brief noise as the punishing stimulus.     

Philosophie en Cultuur

Ohne Zusammenfassung     

Perspectives in psychology

The Psychological Record -     

A COGNITIVE-STYLE APPROACH TO CROSS-CULTURAL RESEARCH1

Styles cognitifs et recherches ‘interculturelles. — L'utilisation, dans les recherches interculturelles, des données, concepts et méthodes relevant du “style cognitif” (mode de fonctionnement caractérisant un individu dans ses activités perceptives et intellectuelles) présente un grand nombre d'avantages méthodologiques. Comme le démontrent les nombreuses études qui ont été consacrées à un style cognitif privilégié qui correspond à la dimension “global-articulé”, les styles cognitifs sont fondamentaux dans L'étude du développement; ils peuvent être mesurés par des techniques objectives; les tests utilisables peuvent être appliqués avec validité et ils ont un sens pour des populations qui sont de niveau mental tout à fait différent; ils ont été conçus en relation avec des manières particulières d'élever les enfants, de telle sorte qu'ils peuvent servir à identifier les résultats de ces méthodes dans L'étude comparative des schèmes de socialisation. Les mêmes relations entre les premières expériences familiales et les différences inter-individuelles au long du continuum “global-articulé” qui avaient été originellement observées dans des milieux occidentaux, L'ont été également dans des milieux non occidentaux. De plus, on a trouvé dans le style cognitif modal de certains groupes non occidentaux, les différences qu'on avait pu prédire sur la base des différences observées dans la manière d'élever les enfants. La fréquence des différences dues au sexe en matière de style “articulé” ou “global” dans un grand nombre de cultures, amène à penser que L'étude du rôle que joue le sexe dans le développement cognitif pourrait être une voie féconde pour la recherche interculturelle.     

Temporal and interactional effects in short-term storage

The operation of temporal and interactional processes in short-term storage was studied under conditions which require that information about all items presented be stored and the relative retention of all be evaluated concurrently, but preclude further interference after presentation by testing or retrieval effects. Random sequences of twelve two digit numbers from a known set of thirteen were presented visually at 1, 2, or 4 per sec. for full interval and .25 sec. presentation durations to 15 Ss who reported the missing number that was not presented from the set. For 1/sec. full duration presentations the missing scan serial position error distribution shows a linear decrease in errors from first through last presented items. As rate of presentation increases there is a linear increase in total errors, a linearly increasing primacy effect, and an increase of errors over at least the last half of the sequence such that the error distribution remains linear with the same slope. These findings are compatible with the operation of time dependent interactional and perceptual processes in short-term storage but not with autonomous decay.     

The onset and mastery of spatial language in children acquiring British Sign Language

In the course of language development children must solve arbitrary form-to-meaning mappings, in which semantic components are encoded onto linguistic labels. Because sign languages describe motion and location of entities through iconic movements and placement of the hands in space, child signers may find spatial semantics-to-language mapping easier to learn than child speakers. This hypothesis was tested in two studies: a longitudinal analysis of a native signing child's use of British Sign Language to describe motion and location events between the ages 1–10 and 3–0, and performance of 18 native signing children between the ages of 3–0 and 4–11 on a motion and location sentence comprehension task. The results from both studies argue against a developmental advantage for sign language learners for the acquisition of motion and location forms. Early forms point towards gesture and embodied actions followed by protracted mastery of the use of signs in representational space. The understanding of relative spatial relations continues to be difficult, despite the iconicity of these forms in the language, beyond 5 years of age.