Editor's Introduction: Special Issue on the Next Big Questions in Psychology.

In this issue of Perspectives on Psychological Science, we learn what 18 leading psychologists believe are the next big research questions in their respective fields. I invited about 20 of our most outstanding scholars to tell us what they believe are the most important questions to be asked in the upcoming decade. Not unexpectedly, the contributions are wide ranging both in content and in the way the authors framed the question of what is important. The range of articles, from psychoneuroimmunology to human-android interactions, clearly indicates the enormous scope of psychology. My hope is that both freshly minted and senior scientists alike might gain from these insights into the research they should pursue in the years ahead.