Turning the eyes and the head to an object when it suddenly appears in the visual f ield, producing what is called exploration behavior, is a common experience for everyone. Sokolov (1963) described this phenomenon as the orienting reflex. The purpose of the orienting reflex is to allow the central system to identify the new element that has just occurred in order to prepare the whole organism ...

En dos trabajos anteriores (Hierro 1993 y 1994) me ocupé de las objeciones Dworkin al “Análisis Económico del Derecho”. el primero ellos venía a suscribir formuladas por él contra la posición “fuerte” o “radical” representada Richard Posner. 2 segundo ellos, contrario, planteaba ciertas reservas frente sector “débil” “moderado”

Recent research in attention indicates it involves three anatomical networks concerned with alerting, orienting and executive control (cf. Posner & Fan, 2007). The Attentional Network Test (ANT) provides a behavioral measure of the efficiencies of these three networks within a single task (Fan, MaCandliss, Sommer, Raz & Posner, 2002). This work adapts an ACT-R 6.0 model of adult performance on ...

Posner (1995) proposes the redistribution of health spending from old women to old men to equalize life expectancy. His argument is based on the assumption that women’s utility is higher if they are married. Using life satisfaction data from the German Socio-Economic Panel Study (SOEP), we conduct an empirical test of this assumption. We apply a two-step estimation strategy: first, we use a pro...