Collinear facilitation is a common phenomenon in the fovea, but it has been recently challenged at the human periphery. Since physiological studies show that facilitation is found at the periphery but only from outside the receptive field, our hypothesis was that facilitation at the periphery exists but from larger target-flanker separations than the fovea. Here, we applied a recent paradigm (P...

There is widespread concern, both in the private and public sectors, about perceived declines in U.S. college graduates in STEM fields. In our sample, the proportion of science majors has remained steady over the sample period; however, the number entering our college intending to major in STEM fields has fallen. In this paper we use administrative data from the graduating classes of 2001-2009,...

1. The aim was to examine whether long-term potentiation (LTP) had effects on short-term synaptic plasticity outside those predicted from its effect on single volley-induced responses. Field recordings from the CA1 region of guinea-pig hippocampal slices were used, and short- term plasticity was evoked by five-impulse trains of 20 and 50 Hz. 2. The five-impulse trains were evoked in the presenc...

This paper develops a model that endogenizes both directed technologies and demography. Potential innovators decide which technologies to develop after considering available factors of production, and individuals decide the quality and quantity of their children after considering available technologies. This interaction allows us to evaluate potentially divergent development paths. We find that...

Article History The paper received on: 12/03/2014 Accepted after peer-review on: 07/05/2014 Published on: 01/06/2014 Robert Frost (1874-1963) is a famous American Poet. As most of his poems are autobiographical in subject, it is evident that he has been mostly influenced by the environment around him in composing his masterpieces. Frost’s themes are very simple in the surface meaning endowed wi...