Psychological Investigations of Humor and Laughter: Honoring the Research Contributions of Professor Rod Martin Editorial Psychological Investigations of Humor and Laughter: Honoring the Research Contributions of Professor Rod Martin Opening Comments Nicholas A. Kuiper*a [a] Department of Psychology, University of Western Ontario, London, Ontario, Canada. Europe's Journal of Psychology, 2016, Vol. 12(3), 312–319, doi:10.5964/ejop.v12i3.1213 Published (VoR): 2016-08-19. *Corresponding author at: Department of Psychology, Westminster Hall, Western University, London, Ontario, Canada, N6A 3K7. E-mail: ramartin@uwo.ca This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Welcome to this special issue of Europe’s Journal of Psychology (EJOP), which honors the many psychological research contributions on humor and laughter made by Professor Rod Martin. After completing his graduate training at the University of Waterloo in 1984, Dr. Martin became a faculty member in the clinical psychology program at the University of Western Ontario. Professor Martin then remained at Western for many years, con- ducting research on humor and laughter, until his very recent retirement in the summer of 2016. In a distinguished research career which spans over 30 years, Professor Martin has published a large number of high impact research articles, chapters, and scholarly books on humor and laughter. Representative illustrations of these contributions are shown in Table 1. This table is organized accordingly to the various topic areas within the domains of humor and laughter research that Professor Martin has explored since the early to mid-1980s. What is immediately apparent, even from a cursory examination of Table 1, is the extremely broad range of humor and laughter topics that Professor Martin has investigated. Over the years, his theoretical and research contributions have been at the forefront of psychologically-based humor investigations, resulting in considerable advances in our understanding of many different psychological aspects of humor and laughter. For example, in addition to writing a definitive book in 2007 that provided a broad overview of theoretical approaches and research on the psychology of humor and laughter, Dr. Rod Martin has also developed several assessment measures for humor that have become the leading standards in the field, such as the Humor Styles Questionnaire. Professor Martin has also made substantial theoretical and research contributions to several other longstanding issues in the humor and laughter research domain, including clarifications and elaborations regarding the various relationships between humor and physical health, humor and psychological well-being, and humor and psychopathol- ogy. Further themes that have been prominent in Professor Martin‘s research program have integrated his work Europe's Journal of Psychology ejop.psychopen.eu | 1841-0413 http://creativecommons.org/licenses/by/3.0/ http://creativecommons.org/licenses/by/3.0 http://ejop.psychopen.eu/ http://ejop.psychopen.eu/ http://www.psychopen.eu/ on humor with a broader positive psychology perspective. Dr. Martin and his colleagues have also mapped out how various personality characteristics and other individual difference attributes may relate to sense of humor, particularly as expressed via the four humor styles. Some of this work has explored developmental issues in humor, whereas other studies have focused on the degree to which sense of humor may display cross-cultural variations. Further aspects of Professor Martin’s work has addressed the nature versus nurture distinctions by examining humor styles from a behavioral genetics perspective, as well as considering how professional comedians may differ from non-comedians in their upbringing, the expression of certain personality traits and their humor production ability. Dr. Martin has also advanced our understanding of how humor and laughter may be involved in social in- teractions and close relationships, as well as the use of humor as a possible intervention technique. Overall, this very brief synopsis of Professor Martin’s many research activities and accomplishments over the past 30 or so years clearly reveals both the breadth and depth of his contributions to our psychological understanding of humor and laugher. In turn, his contributions now provide a robust theoretical-empirical framework that can be built upon by future investigators, as they continue to explore psychological aspects of humor and laughter. Professor Martin’s legacy in the humor research domain is very strong, and this special issue honors his contribu- tions by presenting an in-depth interview with Dr. Martin (Martin & Kuiper, 2016, this issue). In this interview, Professor Martin discusses several of his main humor research contributions over the past 30 years, and provides both a personal and historical perspective on his career highlights and accomplishments. In addition, Dr. Martin also provides many insightful comments regarding some of the most significant issues facing contemporary humor and laughter researchers today. Table 1 Humor and Laughter Topics Investigated by Professor Rod Martin Books on Humor and Laughter Lefcourt, H. M., & Martin, R. A. (1986). Humor and life stress: Antidote to adversity. New York, NY, USA: Springer. Martin, R. A. (2007). The psychology of humor: An integrative approach. Burlington, MA, USA: Elsevier Academic Press. [Translated into Spanish, Korean, Japanese and Russian] Assessment of Humor and Laughter Martin, R. A. (1996). The Situational Humor Response Questionnaire (SHRQ) and Coping Humor Scale (CHS): A decade of research findings. Humor: International Journal of Humor Research, 9, 251-272. Martin, R. A., Puhlik-Doris, P., Larsen, G., Gray, J., & Weir, K. (2003). Individual differences in uses of humor and their relation to psychological well-being: Development of the Humor Styles Questionnaire. Journal of Research in Personality, 37, 48-75. Edwards, K. R., & Martin, R. A. (2014). The conceptualization, measurement, and role of humor as a character strength in positive psychology. Europe’s Journal of Psychology, 10, 505-519. Humor and Physical Health Martin, R. A. (2001). Humor, laughter, and physical health: Methodological issues and research findings. Psychological Bulletin, 127, 504-519. Martin, R. A. (2002). Is laughter the best medicine? Humor, laughter, and physical health. Current Directions in Psychological Science, 11, 216-220. [invited article] Europe's Journal of Psychology 2016, Vol. 12(3), 312–319 doi:10.5964/ejop.v12i3.1213 Kuiper 313 http://www.psychopen.eu/ Martin, R. A. (2004). Sense of humor and physical health: Theoretical issues, recent findings, and future directions. Humor: International Journal of Humor Research, 17, 1-19. Edwards, K. R., & Martin, R. A. (2012). Do humorous people take poorer care of their health? Associations between humor styles and substance use. Europe’s Journal of Psychology, 8, 1-12. Humor, Psychological Well-Being and Psychopathology Martin, R. A., & Lefcourt, H. M. (1983). Sense of humor as a moderator of the relation between stressors and moods. Journal of Personality and Social Psychology, 45, 1313-1324. Kuiper, N. A., Martin, R. A., & Olinger, L. J. (1993). Coping humor, stress, and cognitive appraisals. Canadian Journal of Behavioral Science, 25, 81-96. Kuiper, N. A., Martin, R. A., Olinger, L. J., Kazarian, S. S., & Jette, J. L. (1998). Sense of humor, self-concept, and psychological well-being in psychiatric inpatients. Humor: International Journal of Humor Research, 11, 357-381. Frewen, P. A., Brinker, J., Martin, R. A., & Dozois, D. J. A. (2008). Humor styles and personality-vulnerability to depression. Humor: International Journal of Humor Research, 21, 179-195. Dozois, D. J. A., Martin, R. A., & Bieling, P. J. (2009). Early maladaptive schemas and adaptive/maladaptive styles of humor. Cognitive Therapy and Research, 33, 585-596. Dozois, D. J. A., Martin, R. A., & Faulkner, B. (2013). Early maladaptive schemas, styles of humor, and aggression. Humor: International Journal of Humor Research, 26(1), 97-116. Humor, Positive Psychology and Quality of Life Kuiper, N. A., Martin, R. A., & Dance, K. A. (1992). Sense of humor and enhanced quality of life. Personality and Individual Differences, 13, 1273-1283. Kuiper, N. A., & Martin, R. A. (1998). Is sense of humor a positive personality characteristic? In W. Ruch (Ed.), The sense of humor: Explorations of a personality characteristic (Humor Research Series) (pp. 159-178). Berlin, Germany: Mouton de Gruyter. Kuiper, N. A., & Martin, R. A. (1998). Laughter and stress in daily life: Relation to positive and negative affect. Motivation and emotion [Special issue on affect and self-regulation], 22, 133-153. Edwards, K. R., & Martin, R. A. (2010). Humor creation ability and mental health: Are funny people more psychologically healthy? Europe’s Journal of Psychology, 3, 196-212. Veselka, L., Schermer, J. A., Martin, R. A., & Vernon, P. A. (2010). Laughter and resiliency: A behavioral genetic study of humor styles and mental toughness. Twin Research and Human Genetics, 13, 442-449. Humor, Personality and other Individual Difference Attributes Martin, R. A., & Kuiper, N. A. (1999). Daily occurrence of laughter: Relationships with age, gender, and Type A personality. Humor: International Journal of Humor Research, 12, 355-384. Martin, R. A., Lastuk, J. M., Jeffery, J., Vernon, P. A., & Veselka, L. (2012). Relationships between the dark triad and humor styles: A replication and extension. Personality and Individual Differences, 52, 178-182. Schermer, J. A., Martin, R. A., Martin, N. G., Lynskey, M., & Vernon, P. A. (2013). The general factor of personality and humor styles. Personality and Individual Differences, 54(8), 890-893. Martin, R. A. (2014). Humor and gender: An overview of psychological research. In D. Chiaro & R. Baccolini (Eds.), Gender and humor: Interdisciplinary and international perspectives (pp. 123-146). New York, NY, USA: Routledge. Europe's Journal of Psychology 2016, Vol. 12(3), 312–319 doi:10.5964/ejop.v12i3.1213 Editorial 314 http://www.psychopen.eu/ Humor and Developmental Issues Martin, R. A. (1989). Humor and the mastery of living: Using humor to cope with the daily stresses of growing up. In P. E. McGhee (Ed.), Humor and children's development: A practical guide to applications. New York, NY, USA: Haworth Press, 135-154. Kazarian, S. S., Moghnie, L., & Martin, R. A. (2010). Perceived parental warmth and rejection in childhood as predictors of humor styles and subjective happiness. Europe’s Journal of Psychology, 3, 71-93. Humor and Cross-Cultural Issues Kazarian, S. S., & Martin, R. A. (2006). Humor styles, culture-related personality, well-being, and family adjustment among Armenians in Lebanon. Humor: International Journal of Humor Research, 19, 405-423. Chen, G. H., & Martin, R. A. (2007). A comparison of humor styles, coping humor, and mental health between Chinese and Canadian university students. Humor: International Journal of Humor Research, 20, 215-234. Chen, G., Watkins, D., & Martin, R. A. (2013). Sense of humor in China: The role of individualism, collectivism, and facework. Psychologia, 56, 57-70. Humor and Behavioral Genetics Bressler, E. R., Martin, R. A., & Balshine, S. (2006). Production and appreciation of humor as sexually selected traits. Evolution and Human Behavior, 27, 121-130. Vernon, P. A., Martin, R. A., Schermer, J. A., & Mackie, A. (2008). A behavioral genetic investigation of humor styles and their correlations with the Big-5 personality dimensions. Personality and Individual Differences, 44, 1116-1125. Veselka, L., Schermer, J. A., Martin, R. A., Cherkas, L. F., Spector, T. D., & Vernon, P. A. (2010). A behavioral genetic study of relationships between humor styles and the six HEXACO personality factors. Europe’s Journal of Psychology, 3, 9-33. Humor in Social Interactions and Close Relationships Yip, J. A., & Martin, R. A. (2006). Sense of humor, emotional intelligence, and social competence. Journal of Research in Personality, 40, 1202-1208. Campbell, L., Martin, R. A., & Ward, J. R. (2008). An observational study of humor use while resolving conflict in dating couples. Personal Relationships, 15, 41-55. Caird, S., & Martin, R. A. (2014). Relationship-focused humor styles and relationship satisfaction in dating couples: A repeated-measures design. Humor: International Journal of Humor Research, 27(2), 227-247. Humor and Professional Comedians Greengross, G., Martin, R. A., & Miller, G. (2012). Personality traits, intelligence, humor styles, and humor production ability of professional stand-up comedians compared to college students. Psychology of Aesthetics, Creativity, and the Arts, 6, 74-82. Greengross, G., & Martin, R. A., & Miller, G. (2012). Childhood experiences of professional comedians: Peer and parent relationships and humor use. Humor: International Journal of Humor Research, 25, 491-505. Humor as an Intervention Technique Martin, R. A. (1996). Humor as therapeutic play: Stress-moderating effects of humor. Journal of Leisurability, 23, 8-15. Rudnick, A., Kohn, P. M., Edwards, K. R., Podnar, D., Caird, S., & Martin, R. A. (2014). Humour-related interventions for people with mental illness: A randomized controlled pilot study. Community Mental Health Journal, 50, 737-742. Europe's Journal of Psychology 2016, Vol. 12(3), 312–319 doi:10.5964/ejop.v12i3.1213 Kuiper 315 http://www.psychopen.eu/ Articles in the Current Special Issue In further recognition of Dr. Martin’s many research achievements, this special humor issue of Europe’s Journal of Psychology offers a set of contemporary psychological studies investigating various aspects of humor and laughter. Table 2 provides a brief summary of several key characteristics for each of the papers in this special issue. These characteristics include the humor constructs being investigated in that study, the sample employed, and the main issues under consideration. As can be seen in Table 2, the majority of the studies in this special issue (see the first 9 listed in this table) build upon Dr. Martin’s prominent humor styles model. In turn, the last 3 papers listed in Table 2 provide samples of additional contemporary work in the humor domain that does not derive di- rectly from Professor Martin’s work, but rather focuses on laughter research, therapeutic medical clowning, and the semiotic analysis of jokes. What is quite evident across all of the papers in this special issue is the extensive nature of the humor research now being conducted. As shown in Table 2, participants are drawn from many different countries (Canada, Germany, Norway Switzerland, United Kingdom, and United States), and include samples composed of children, adolescents, adults, and couples. The novel themes examined in these studies include associations of humor styles with: (1) happiness and other personality characteristics (Ford, Lappi, & Holden, 2016, this issue), (2) forgiveness (Hampes, 2016, this issue), (3) cognitive distortions and depression (Rnic, Dozois, & Martin, 2016, this issue), (4) patholog- ical personality traits in the DSM-5 (Zeigler-Hill, McCabe, & Vrabel, 2016, this issue), (5) psychosocial adjustment across time in adolescents (Fox, Hunter, & Jones, 2016, this issue), and (6) short and long-term romantic motives (DiDonato & Jakubiak, 2016, this issue). Other novel aspects of humor styles examined in the current set of studies include: (7) the degree of similarity in humor styles between spouses (Hahn & Campbell, 2016, this issue), (8) childrens’ understanding of self-evaluative and self-defeating humor styles (James & Fox, 2016, this issue), and (9) adaptations of the Humor Styles Ques- tionnaire for use with German speaking populations (Ruch & Heintz, 2016, this issue). Moving beyond a focus on the humor styles, the remaining studies in this special issue explore: (10) links between laughter, trunk compression and cortical activation (Svebak, 2016, this issue), (11) the effects of medical clowning on patients and staff (Dionigi & Canestrari, 2016, this issue), and (12) the use of a typology of 45 different techniques to analyze jokes (Berger, 2016, this issue). More generally, as you read through these articles presented in this special humor issue of EJOP, I hope you find them to be enjoyable, informative and enlightening. In addition to honoring Professor Rod Martin’s research work, this collection of articles also provides an intriguing slice of contemporary theory and research on various psycho- logical aspects of humor and laughter. As such, reading about this work may inspire you to also conduct further research on some of the topics described herein. However, in doing so, it should be remembered that the topics covered in this special issue represent only a very small portion of the exponentially increasing number of psycho- logically-based studies on humor and laughter published in the past few years. This additional research also warrants further detailed consideration as the field moves forward. Europe's Journal of Psychology 2016, Vol. 12(3), 312–319 doi:10.5964/ejop.v12i3.1213 Editorial 316 http://www.psychopen.eu/ Table 2 Overview of Papers in the Special Humor Issue (EJOP August 2016) Main Issues ExaminedSampleHumorInvestigators Associations of humor styles with happiness and personality characteristics including Sample of 194 United States residents 1. Ford, Lappi & Holden Affiliative Humor Self-Enhancing Humor Aggressive Humor extraversion, locus of control, optimism and self-esteem. Self-Defeating Humor Associations of humor styles with forgiveness.112 college students in the United States 2. Hampes Affiliative Humor Self-Enhancing Humor Aggressive Humor Self-Defeating Humor Associations of humor styles with cognitive distortions and depression in social and achievement-related contexts. 208 university students in Canada3. Rnic, Dozois & Martin Affiliative Humor Self-Enhancing Humor Aggressive Humor Self-Defeating Humor Associations between humor styles and pathological personality traits in DSM-5, 594 university students in the United States 4. Zeigler-Hill, McCabe & Vrabel Affiliative Humor Self-Enhancing Humor Aggressive Humor including negative affectivity, detachment, antagonism, disinhibition and psychoticism. Self-Defeating Humor Longitudinal associations between humor styles and psychosocial adjustment in adolescence. 1234 adolescents (aged 11-13) enrolled in secondary schools in the U.K. 5. Fox, Hunter & Jones Affiliative Humor Self-Enhancing Humor Aggressive Humor Self-Defeating Humor How romantic motives (short versus long term) affect use of and response to adapative and maladaptive humor. Community sample (n = 175) and university students (n = 149) in the United States 6. DiDonato & Jakubiak Humorous behaviors pertaining to Affiliative, Self-Enhancing, Aggressive and Self-Defeating Humor Styles Degree of similarity in humor styles between spouses, and the role of self-esteem as a potential moderator of degree of similarity. 116 heterosexual married couples in Canada (n = 232) 7. Hahn & Campbell Affiliative Humor Self-Enhancing Humor Aggressive Humor Self-Defeating Humor Qualitative in-depth interviews to determine childrens’ understanding of self-focused humor 10 children (aged 8-11 years) at a U.K. primary school 8. James & Fox Self-Enhancing Humor Self-Defeating Humor styles (self-enhancing humor and self-defeating humor). Develops and reports on the psychometric properties of a German version of the Humor Combined several German speaking samples for a total of 1101 participants. 9. Ruch & Heintz Affiliative Humor Self-Enhancing Humor Aggressive Humor Styles Questionnaire. Also examined Self-Defeating Humor relationships between HSQ humor styles andHumorous Behavior Q-Sort Deck, Literary Comic Styles other measures of humor (e.g., Humorous Behavior Q-sort Deck, Literary Comic Styles) Examined the consequences of laughter upon trunk compression and cortical activation. 81 university students from Norway (in two studies) 10. Svebak Laughter Summarizes effects of medical clowning on adult patients, relatives and medical staff. Review of current research literature on effectiveness of medical clowning 11. Dionigi & Canestrari Medical clowning interventions in clinical health care settings Typology of 45 techniques of humor in 4 categories (e.g., Logic, Identity, & Action) used to analyze a joke. Semiotic analyses of the joke12. Berger Jokes Europe's Journal of Psychology 2016, Vol. 12(3), 312–319 doi:10.5964/ejop.v12i3.1213 Kuiper 317 http://www.psychopen.eu/ Concluding Comments While preparing this special issue, I received many positive comments from other humor investigators about the stellar quality and high impact of the many research contributions made by Professor Martin throughout his career. Notably, many of these investigators also spontaneously commented on the very gracious interpersonal style that is a hallmark of Professor Martin’s professional interactions with others. His positive demeanor, coupled with a strong ability and desire to unravel the many mysteries still surrounding our use of humor and laughter, helps make Professor Martin a truly outstanding humor scholar. His work has greatly advanced our knowledge and understanding of many different facets of humor and laughter, and we would all like to wish him the best as he begins his retirement. I would also like to thank all of the reviewers and contributors to this special humor issue for their assistance throughout the many stages of this project. Their co-operation, patience and thoughtfulness certainly helped to make this special issue a very fitting tribute to Professor Martin’s research career and accomplishments. Finally, I would also like to offer considerable thanks to the chief editor of EJOP, Vlad Glăveanu, who has very capably helped me throughout this special issue project. It should be noted that this is the third in a series of special humor issues that Europe’s Journal of Psychology has published (see also Kuiper, 2010 and Kuiper 2014). For all three issues, the chief editor’s encouragement and unwavering support has made this editorial task immensely easier. Funding The author has no funding to report. Competing Interests The author has declared that no competing interests exist. Acknowledgments The author has no support to report. References Berger, A. A. (2016). Three holy men get haircuts: The semiotic analysis of a joke. Europe’s Journal of Psychology, 12, 489-497. doi:10.5964/ejop.v12i3.1042 DiDonato, T. E., & Jakubiak, B. K. (2016). Strategically funny: Romantic motives affect humor style in relationship initiation. Europe’s Journal of Psychology, 12, 390-405. doi:10.5964/ejop.v12i3.1105 Dionigi, A., & Canestrari, C. (2016). Clowning in health care settings: The point of view of adults. Europe’s Journal of Psychology, 12, 473-488. doi:10.5964/ejop.v12i3.1107 Ford, T. E., Lappi, S. K., & Holden, C. J. (2016). Personality, humor styles and happiness: Happy people have positive humor styles. Europe’s Journal of Psychology, 12, 320-337. doi:10.5964/ejop.v12i3.1160 Fox, C. L., Hunter, S. C., & Jones, S. E. (2016). Longitudinal associations between humor styles and psychosocial adjustment in adolescence. Europe’s Journal of Psychology, 12, 377-389. doi:10.5964/ejop.v12i3.1065 Europe's Journal of Psychology 2016, Vol. 12(3), 312–319 doi:10.5964/ejop.v12i3.1213 Editorial 318 http://dx.doi.org/10.5964%2Fejop.v12i3.1042 http://dx.doi.org/10.5964%2Fejop.v12i3.1105 http://dx.doi.org/10.5964%2Fejop.v12i3.1107 http://dx.doi.org/10.5964%2Fejop.v12i3.1160 http://dx.doi.org/10.5964%2Fejop.v12i3.1065 http://www.psychopen.eu/ Hahn, C. M., & Campbell, L. J. (2016). Birds of a feather laugh together: An investigation of humour style similarity in married couples. Europe’s Journal of Psychology, 12, 406-419. doi:10.5964/ejop.v12i3.1115 Hampes, W. (2016). The relationship between humor styles and forgiveness. Europe’s Journal of Psychology, 12, 338-347. doi:10.5964/ejop.v12i3.1012 James, L. A., & Fox, C. L. (2016). Children’s understanding of self-focused humor styles. Europe’s Journal of Psychology, 12, 420-433. doi:10.5964/ejop.v12i3.1067 Kuiper, N. A. (2010). Introductory comments: Special Issue of EJOP (August 2010) on Humor Research in Personality and Social Psychology. Europe's Journal of Psychology, 6, 1-8. doi:10.5964/ejop.v6i3.205 Kuiper, N. A. (2014). Investigating the role of humor in psychological health and well-being: Opening comments. Europe's Journal of Psychology, 10, 408-411. doi:10.5964/ejop.v10i3.809 Martin, R., & Kuiper, N. A. (2016). Three decades investigating humor and laughter: An interview with Professor Rod Martin. Europe’s Journal of Psychology, 12, 498-512. doi:10.5964/ejop.v12i3.1119 Rnic, K., Dozois, D. J. A., & Martin, R. A. (2016). Cognitive distortions, humor styles, and depression. Europe’s Journal of Psychology, 12, 348-362. doi:10.5964/ejop.v12i3.1118 Ruch, W., & Heintz, S. (2016). The German version of the Humor Styles Questionnaire: Psychometric properties and overlap with other styles of humor. Europe’s Journal of Psychology, 12, 434-455. doi:10.5964/ejop.v12i3.1116 Svebak, S. (2016). Consequences of laughter upon trunk compression and cortical activation: Linear and polynomial relations. Europe’s Journal of Psychology, 12, 456-472. doi:10.5964/ejop.v12i3.1102 Zeigler-Hill, V., McCabe, G. A., & Vrabel, J. K. (2016). The dark side of humor: DSM-5 pathological personality traits and humor styles. Europe’s Journal of Psychology, 12, 363-376. doi:10.5964/ejop.v12i3.1109 About the Author Dr. Nicholas A. Kuiper has been a professor of clinical psychology at the University of Western Ontario since 1978. During this time he has published numerous articles and chapters on humor, psychological well-being, depression, anxiety, self- schema processing of personal information, and various other topics of interest. PsychOpen is a publishing service by Leibniz Institute for Psychology Information (ZPID), Trier, Germany. www.zpid.de/en Europe's Journal of Psychology 2016, Vol. 12(3), 312–319 doi:10.5964/ejop.v12i3.1213 Kuiper 319 http://dx.doi.org/10.5964%2Fejop.v12i3.1115 http://dx.doi.org/10.5964%2Fejop.v12i3.1012 http://dx.doi.org/10.5964%2Fejop.v12i3.1067 http://dx.doi.org/10.5964%2Fejop.v6i3.205 http://dx.doi.org/10.5964%2Fejop.v10i3.809 http://dx.doi.org/10.5964%2Fejop.v12i3.1119 http://dx.doi.org/10.5964%2Fejop.v12i3.1118 http://dx.doi.org/10.5964%2Fejop.v12i3.1116 http://dx.doi.org/10.5964%2Fejop.v12i3.1102 http://dx.doi.org/10.5964%2Fejop.v12i3.1109 http://www.psychopen.eu/ http://www.zpid.de/en Editorial Articles in the Current Special Issue Concluding Comments (Additional Information) Funding Competing Interests Acknowledgments References About the Author