Algorithmic complexity for short binary strings applied to psychology: a primer

As human randomness production has come to be more closely studied and used to assess executive functions (especially inhibition), many normative measures for assessing the degree to which a sequence is randomlike have been suggested. However, each of these measures focuses on one feature of randomness, leading researchers to have to use multiple measures. Although algorithmic complexity has been suggested as a means for overcoming this inconvenience, it has never been used, because standard Kolmogorov complexity is inapplicable to short strings (e.g., of length l?≤?50), due to both computational and theoretical limitations. Here, we describe a novel technique (the coding theorem method) based on the calculation of a universal distribution, which yields an objective and universal measure of algorithmic complexity for short strings that approximates Kolmogorov–Chaitin complexity.     

Holistic reasoning on the other side of the world: validation of the analysis-holism scale in Mexicans

The universality of cognitive processes has been called into question. Research suggests that individuals from Eastern cultures (e.g., China, Korea) when compared to individuals from Western cultures (e.g., the United States) prefer to reason holistically. This line of research has not been extended to cultural groups far removed from cultures traditionally surveyed in cross-cultural research such as Hispanics. We conducted two studies to understand: 1) the generalizability of the construct of holistic reasoning in Mexicans, and 2) the preferred reasoning style of Mexicans when compared to U.S. Americans. Results support the generalization of the factor structure of holistic reasoning as originally hypothesized by Choi, Koo, and Choi (2007). The results of Study 2 suggest that Mexicans scored higher than U.S. Americans on certain aspects of holistic reasoning.     

How and for Whom Time Control Matter for Innovation? The Role of Positive Affect and Problem-Solving Demands

Job resources are essential for higher performance. Focusing on innovation, we examine how and for whom the job resource of time control is related to the implementation of novel ideas in the workplace. Drawing on the job demands-resources model and affect-as-information theory, we propose that positive affect explains how the association of time control with innovation unfolds and how this psychological process depends on the extent to which employees work under problem-solving demands. Using a survey study, conducted with 198 employees from diverse organisations, we supported a mediation mechanism in which time control was positively associated with positive affect, which is turn was positively related to innovation. Furthermore, the strength of this mediation process depended on problem-solving demands, such that positive affect and innovation resulting from time control was stronger for those working in complex environments. These results corroborate and expand knowledge on the job demands-resources, affect and innovation literatures, showing that job resources matter for performance, particularly in conjunction with job complexity denoting challenging performance. Thus, organisations should be aware of opportunities to manage the degree of job control and complexity if they aim to foster employee innovation.     

Race,Religion, and Ethics in the Modern/Colonial World

The concept of religion as an anthropological category and the idea of race as an organizing principle of human identification and social organization played a major role in the formation of modern/colonial systems of symbolic representation that acquired global significance with the expansion of Western modernity. The modern concepts of religion and race were mutually constituted and together became two of the most central categories in drawing maps of subjectivity, alterity, and sub‐alterity in the modern world. This makes the critical theory of religion highly relevant for the theory of race, and both of them crucial for ethics. It follows from this, not only that religion and race have been profoundly intertwined in modernity, but also that any ethics that seeks to take seriously the challenges created by modernity/coloniality has to be, at least to some extent, decolonial.     

Learned Irrelevance Is Not the Sum of Exposure to CS and US

In three experiments hungry rats received appetitive conditioning trials with a light that signalled the delivery of sucrose solution. In Experiment 1, prior exposure to uncorrelated presentations of the conditioned stimulus (CS) and unconditioned stimulus (US) retarded conditioning significantly more than did prior exposure to the CS alone. In Experiments 2 and 3, groups exposed to uncorrelated presentations of the CS and US within the same session conditioned significantly more slowly than groups given separate sessions of exposure to the CS followed by sessions of exposure to the US (or vice versa). Some part of the learned irrelevance effect depends on exposure to a zero correlation between the CS and US, perhaps because this promotes learning that the CS predicts no change in the probability of the US.     

Relative time in dangerous and safe places influences one-way avoidance learning in the rat

This paper reports three experiments on one-way avoidance learning in rats which examined the effect of time spent in the safe and dangerous compartments on acquisition, maintenance, and extinction of avoidance. In Experiment 1 time spent in safety was manipulated, and time spent in danger was held constant. Animals spending more time in safety needed fewer trials to reach the acquisition criteria and more trials to reach the extinction criteria; both effects became stronger as the required criteria for acquisition and extinction were increased. In Experiment 2 time spent in safety/danger was manipulated while holding the intertrial interval constant. Groups simultaneously spending more time in safety and less time in danger again needed fewer trials to reach the learning criteria. In Experiment 3 time spent in danger was manipulated, whereas time spent in safety was held constant. Groups spending less time in danger needed fewer trials to reach the learning criteria. These results indicate that the magnitude of the reinforcement or incentive value of the safety compartment is not a linear function of absolute time spent therein, but a function of the ratio between the length of time spent in safety and in danger.