<h1>&nbsp;</h1> <div class="toc-about clearfix"> <h1><a href="http://many.at/links2tabs" class="header">Psychology - психологія 心理学 psychologie 心理學 ψυχολογία psychologia मनोविज्ञान pszichológia உளவியலாளர்கள் psicologia మానసిక నిపుణులు 심리학 psykologi tâm lý học psikoloji психология psicólogos علم النفس psicología פסיכולוגיה</a></h1><p>References 21 - 25 for Why Gamers Can&#039;t Stop Playing First-Person Shooters</p> </div><!-- class="about clearfix" --><h1>&nbsp;</h1> <div id="mysitesnoframes" class="sites_content"><ul> <li><a rel="nofollow" href="http://www.ncbi.nlm.nih.gov/pubmed/19817566" ><img src="/wp-content/images/icons/32/globe2.png" width="32" height="32" /><strong>[21] is one of their strongest motivations</strong>ncbi.nlm.nih.gov</a></li> <li><a rel="nofollow" href="http://www.ncbi.nlm.nih.gov/pubmed/17305460" ><img src="/wp-content/images/icons/32/globe3.png" width="32" height="32" /><strong>[22] even holds</strong>ncbi.nlm.nih.gov</a></li> <li><a rel="nofollow" href="http://psycnet.apa.org/index.cfm?fa=buy.optiontobuyid=2009-21799-002" ><img src="/wp-content/images/icons/32/globe4.png" width="32" height="32" /><strong>[23] discovered</strong>psycnet.apa.org</a></li> <li><a rel="nofollow" href="http://twitter.com/mkonnikova" ><img src="/wp-content/images/icons/32/twitter.png" width="32" height="32" /><strong>[24] Maria Konnikova</strong>twitter.com</a></li> <li><a rel="nofollow" href="http://www.amazon.com/Mastermind-Think-Like-Sherlock-Holmes/dp/0670026573" ><img src="/wp-content/images/icons/32/amazon.png" width="32" height="32" /><strong>[25] Mastermind: How to Think Like Sherlock Holmes</strong>amazon.com</a></li> </ul></div> Your browser does not handle frames, which are required to view the sites in tabs. Please upgrade to a more modern browser.<br /><br />