<p><b>An inside view of the experimental practices of cognitive psychology¿and their influence on the addictive nature of social media</b><br><br>Experimental cognitive psychology research is a hidden force in our online lives. We engage with it, often unknowingly, whenever we download a health app, complete a Facebook quiz, or rate our latest purchase. How did experimental psychology come to play an outsized role in these developments? <i>Experiments of the Mind </i>considers this question through a look at cognitive psychology laboratories. Emily Martin traces how psychological research methods evolved, escaped the boundaries of the discipline, and infiltrated social media and our digital universe.<br><br>Martin recounts her participation in psychology labs, and she conveys their activities through the voices of principal investigators, graduate students, and subjects. Despite claims of experimental psychology¿s focus on isolated individuals, Martin finds that the history of the fiel