This paper examines how a number of decision context variables affect the cognitive effort required for decision making on dichotomical choice tasks. Subjects are trained in the use of a strategy in which information processing is alternative-based. The correlation between the attributes of the alternatives and the mean and variance of the difference between the attributes is manipulated. The r...

•Male olive baboons invest in both mating effort and parenting effort•Investment are negatively correlated•Parenting has negative, but uncertain, effects on paternity success•Males seem to trade off Reproductive strategies defined by expenditures of time energy devoted effort, which increases opportunities, enhances the survival offspring. We examine tradeoffs between male baboons, Papio anubis...

conclusions postural stress among female machinists can increase the level of si to fairly risky and dangerous. also, changes in rating hand/wrist qec scores with hand/wrist si score were proportional in the studied samples. the si can increase under the influence of noise above 85 db, although it is not statistically significant. results there was no significant difference between work experie...