The present research examined the effects of directed attention on speed of information transmission in the visual system. Ss judged the temporal order of 2 stimuli while directing attention toward 1 of the stimuli or away from both stimuli. Perception of temporal order was influenced by directed attention: Given equal onset times, the attended stimulus appeared to occur before the unattended s...

introduction: the important of comparing performance of hospitals using hospital indicators, has been made the necessary of utilizing of the application model inevitable. this study aimed to compare hospital performance key indicators simultaneity. methods: in this descriptive cross sectional and retrospective study, 31 hospitals of isfahan university of medical sciences were evaluated in 2007....

The research reported in this paper examines the decision to have private health insurance by elderly Medicare enrollees. Models allowing both simultaneity and a joint error structure between health insurance and use of medical care are considered. We find that common unobserved variables underlying the joint errors are important determinants in the decision to purchase private health insurance...

When estimating the determinants of child care participation, the simultaneity in mothers’ decision to work and in the decision to use child care is a major challenge. In this study, we provide evidence on the determinants of institutional child care use accounting for the endogeneity of mothers’ labor supply by applying an instrumental variables approach. This endogeneity has been neglected in...

A step alphabet describes dependencies between the actions of a concurrent system in the form of two relations expressing potential simultaneity and sequentialisability. These form the basis for the identification of step sequences as observations of the same run of the system. The resulting equivalence classes – step traces – can be represented by (labelled) invariant structures with two relat...

Forty-three normal hearing participants were tested in two experiments, which focused on temporal coincidence in auditory visual (AV) speech perception. In these experiments, audio recordings of/pa/and/ba/were dubbed onto video recordings of /ba/or/ga/, respectively (ApVk, AbVg), to produce the illusory "fusion" percepts /ta/, or /da/ [McGurk, H., & McDonald, J. (1976). Hearing lips and seeing ...

The socially optimal number of police hinges on the extent to which police reduce the most costly crimes, which are also the most difficult to model econometrically because they are rare. In the hope of minimizing simultaneity bias, papers in the recent literature have focused on quasi-experimental approaches that disregard most of the variation in police staffing levels, compounding the modeli...