01396nas a2200217   4500000000100000008004100001260007600042653002400118653001800142653002900160653002000189100002100209700002000230700002200250245008700272300001000359490000700369520077400376022001401150020001401164       2012                            d  c01/2012bSociedad Española para el Estudio de la Ansiedad y el Estrés10aauthor productivity10aco-authorship10ascientific collaboration10asocial networks1 aJulia Osca-Lluch1 aCristina Civera1 aFrancisco Tortosa00aAuthor productivity and scientific collaboration in the Journal Ansiedad y Estrés  a69-780 v183 aThe aim of this study was to determine author productivity and scientific collaboration in the Journal Ansiedad y Estrés during the period 1994-2011 using social network analysis methodologies. Social network analysis is a tool increasingly used to understand the relationships between the different elements that comprise a bibliographic scientific work. In this paper researchers  collaboration patterns have been studied and . networks of co-authorship and collaboration have been built to identify the different research groups. Results show an increase in the number of works published by women throughout the period studied. The information collected was analyzed using Pajek and Ucinet programs and network graphics were designed with Netdraw graphics software.  a1134-7937  a2174-0437