Towards a Formal Theory of a Distractor in Attentional Tasks
The distractive effects on attentional task performance in different paradigms are analyzed in this paper. I demonstrate how distractors may negatively affect (interference effect), positively (redundancy effect) or neutrally (null effect). Distractor effects described in literature are classified in accordance with their hypothetical source. The general rule of the theory is also introduced. It contains the formal prediction of the particular distractor effect, based on entropy and redundancy measures from the mathematical theory of communication (Shannon, 1948). Single- vs dual-process frameworks are considered for hypothetical mechanisms which underpin the distractor effects. Distractor profiles (DPs) are also introduced for the formalization and simple visualization of experimental data concerning the distractor effects. Typical shapes of DPs and their interpretations are discussed with examples from three frequently cited experiments. Finally, the paper introduces hierarchical hypothesis that states the level-fashion modulating interrelations between distractor effects of different classes.
Distractor's effect (stimulus which is irrelevant at a certain moment and ignored) on task solving efficiency is considered. It is revealed that according to problem situation and connection with target stimulus any distractor can produce two opposite effects: negative - interference and positive - redundancy effect. Distractor effects' classification based on one of possible grounds - distractor's source: sensory inputs effects, hierarchical effects and correlational effects is given. Possibility of level-hierarchical relation between the three classes of effects is discussed.
The study was devoted to the investigation of the relationships between the basic characteristics of temperament, measured by different questionnaires, and parameters of the event-related potentials recorded in a classical attentional odd-ball task.
It is well known, that even in optimal conditions animals and humans make spontaneous errors which are the most prominent manifestations of attention system failures. Our goal was to investigate the causes of attention system failures in normal state of arousal and without distracting objects. We have designed a new task which allows to answer the following question: which stage of sensory processing is compromised during attention lapses?
Collection contains plenary papers and speeches at the sessions of the conference. There are considered phenomenology, dynamics, mechanisms and patterns of social and psychological phenomena caused by the preparation and holding of the Olympic Games 2014 in Sochi, Russia.
The article analyzes norms of spousal and parental behavior represented in Russian family law and contrasts them with the meanings young people invest in partnership, matrimony, and parenthood. Federal legislation and interviews with young middle-class residents of Saint Petersburg serve to explore similarities and differences between official discourse and young people's everyday views of their obligations and freedoms. The article discusses the applicability of the concept of a second demographic transition to gender relations in Russia. The subjects of the Russian demographic shift are young adults who, official discourse notwithstanding, base their reproductive decisions on professional, social, and economic status rather than age.
The article examines the main trends in the study of the Stalinist period and the phenomenon of Stalinism in connection with the mass opening of the archives.