The Institute for Scientific and Technical Information (INIST) is a service unit of the French National Centre for Scientific Research (CNRS). A leading integrated scientific and technical information center, INIST provides the major public research and academic institutions as well as the socio-economic sector with resources and services designed to improve dissemination of and access to inter...

The role of pretectum and colliculus superior in the analysis of visual information was studied. Single unit responses to visual stimuli were recorded. Several types of responses were observed, including "suppressed by contrast", "direction non-sensitive" and "direction sensitive" responses. An attempt was made to define the place and mechanism of direction-sensitivity of the cell. The conclusi...

The historical interplay between societies is governed by many factors, including in particular the spreading of languages, religion, and other symbolic traits. Cultural development, in turn, is coupled to the emergence and maintenance of information spreading. Strong centralized cultures exist due to attention from their members, whose faithfulness in turn relies on the supply of information. ...