International Telecommunication Union. Measuring the Information Society Report 2017. Geneva: International Telecommunication Union, ITU; 2017.
Ogas O, Gaddam S. A billion wicked thoughts. New York: Penguin; 2011.
Misra A. Internet data consumption to reach 607 terabytes per second by 2020: 35% will be for pornography! Dazeinfo 2014. https://dazeinfo.com/2014/04/17/internet-data-consumption-reach-607-terabytes-per-second-2020-35-will-pornography/. Accessed 6 Feb 2018.
Pornhub. Pornhub’s 2018 year in review. 2018. https://www.pornhub.com/insights. Accessed 4 Feb 2018.
• Döring N, Daneback K, Shaughnessy K, Grov C, Byers ES. Online sexual activity experiences among college students: a four-country comparison. Arch Sex Behav. 2017;46(6):1641–52 This study provides updated statistics about lifetime prevalence of six types of online sexual activities in four countries’ college students.
Cooper A, Morahan-Martin J, Mathy RM, Maheu M. Toward an increased understanding of user demographics in online sexual activities. J Sex Marital Ther. 2002;28(2):105–29.
Shaughnessy K, Byers ES, Walsh L. Online sexual activity experience of heterosexual students: gender similarities and differences. Arch Sex Behav. 2011;40(2):419–27.
O’Sullivan LF. Linking online sexual activities to health outcomes among teens. New Dir Child Adolesc Dev. 2014;2014(144):37–51.
• Döring NM. The Internet’s impact on sexuality: a critical review of 15 years of research. Comput Hum Behav. 2009;25(5):1089–101 This review explores adolescents’ interpersonal and intrapersonal health outcomes associated to six areas of online sexual activity (pornography, sex shops, sex work, sex education, sex contacts, and sexual subcultures).
Daneback K, Sevcikova A, Månsson SA, Ross MW. Outcomes of using the internet for sexual purposes: fulfillment of sexual desires. Sex Health. 2013;10:26–31.
Suzuki LK, Calzo JP. The search for peer advice in cyberspace: an examination of online teen bulletin boards about health and sexuality. Appl Dev Psychol. 2004;25:685–98.
Smith M. Youth viewing sexually explicit material online: addressing the elephant on the screen. Sex Res Soc Policy. 2013;10(1):62–75.
Courtice EL, Shaughnessy K. The partner context of sexual minority women’s and men’s cybersex experiences: implications for the traditional sexual script. Sex Roles. 2018;78(3–4):272–85.
Daneback K, Træen B, Månsson S-A. Use of pornography in a random sample of Norwegian heterosexual couples. Arch Sex Behav. 2009;38(5):746–53.
Hald GM, Malamuth NM. Self-perceived effects of pornography consumption. Arch Sex Behav. 2008;37(4):614–25.
Cooper K, Quayle E, Jonsson L, Svedin CG. Adolescents and self-taken sexual images: a review of the literature. Comput Hum Behav. 2016;55:706–16.
Paul B, Linz DG. The effects of exposure to virtual child pornography on viewer cognitions and attitudes toward deviant sexual behavior. Commun Res. 2008;35(1):3–38.
Wéry A, Billieux J. Problematic cybersex: conceptualization, assessment, and treatment. Addict Behav. 2017;64:238–46.
• Duffy A, Dawson DL, das Nair R. Pornography addiction in adults: a systematic review of definitions and reported impact. J Sex Med. 2016;13(5):760–77 This study reviews recent literature focused on the definition and impact of excessive and problematic pornography viewing.
World Health Organization. ICD-11 for mortality and morbidity statistics. World Health Organization. 2018. https://icd.who.int/browse11/l-m/en. Accessed 22 Jun 2018.
Potenza MN, Gola M, Voon V, Kor A, Kraus SW. Is excessive sexual behaviour an addictive disorder? Lancet Psychiatry. 2017;4(9):663–4.
Kafka MP. Hypersexual disorder: a proposed diagnosis for DSM-V. Arch Sex Behav. 2010;39(2):377–400.
Kraus SW, Krueger RB, Briken P, First MB, Stein DJ, Kaplan MS, et al. Compulsive sexual behaviour disorder in the ICD-11. World Psychiatry. 2018;17(1):109–10.
Moser C. Hypersexual disorder: searching for clarity. Sex Addict Compulsivity. 2013;20(1–2):48–58.
Billieux J, van Rooij AJ, Heeren A, Schimmenti A, Maurage P, Edman J, et al. Behavioural Addiction Open Definition 2.0—using the Open Science Framework for collaborative and transparent theoretical development. Addiction. 2017;112(10):1723–4.
Kardefelt-Winther D, Heeren A, Schimmenti A, van Rooij A, Maurage P, Carras M, et al. How can we conceptualize behavioural addiction without pathologizing common behaviours? Addiction. 2017;112(10):1709–15.
Negash S, Van N, Sheppard N, Lambert NM, Fincham FD. Trading later rewards for current pleasure: pornography consumption and delay discounting. J Sex Res. 2016;53(6):689–700.
Allen A, Kannis-Dymand L, Katsikitis M. Problematic internet pornography use: the role of craving, desire thinking, and metacognition. Addict Behav. 2017;70:65–71.
Rosenberg KP, Carnes PJ, O’Connor S. Evaluation and treatment of sex addiction. J Sex Marital Ther. 2014;40(2):77–91.
King DL, Herd MCE, Delfabbro PH. Tolerance in Internet gaming disorder: a need for increasing gaming time or something else? J Behav Addict. 2017;6(4):525–33.
Starcevic V. Tolerance and withdrawal symptoms may not be helpful to enhance understanding of behavioural addictions. Addiction. 2016;111(7):1307–8.
Griffiths MD. Internet sex addiction: a review of empirical research. Addict Res Theory. 2012;20(2):111–24.
Dhuffar MK, Griffiths MD. A systematic review of online sex addiction and clinical treatments using CONSORT evaluation. Curr Addict Reports. 2015;2(2):163–74.
Cooper A, Månsson SA, Daneback K, Tikkanen R, Ross MW. Predicting the future of Internet sex: online sexual activities in Sweden. Sex Relatsh Ther. 2003;18(3):277–91.
Sher KJ, Grekin ER, Williams NA. The development of alcohol use disorders. Annu Rev Clin Psychol. 2005;1:493–523.
Khang H, Kim JK, Kim Y. Self-traits and motivations as antecedents of digital media flow and addiction: the Internet, mobile phones, and video games. Comput Hum Behav. 2013;29(6):2416–24.
Stephenson KR, Ahrold TK, Meston CM. The association between sexual motives and sexual satisfaction: gender differences and categorical comparisons. Arch Sex Behav. 2011;40(3):607–18.
Shaughnessy K, Byers ES, Clowater SL, Kalinowski A. Self-appraisals of arousal-oriented online sexual activities in university and community samples. Arch Sex Behav. 2014;43(6):1187–97.
Short MB, Black L, Smith AH, Wetterneck CT, Wells DE. A review of Internet pornography use research: methodology and content from the past 10 years. Cyberpsychology, Behav Soc Netw. 2012;15(1):13–23.
•• Reid RC, Li DS, Gilliland R, Stein JA, Fong T. Reliability, validity, and psychometric development of the Pornography Consumption Inventory in a sample of hypersexual men. J Sex Marital Ther. 2011;37(5):359–85 This article reports the psychometric properties of the Pornography Consumption Inventory (PCI), the unique scale specifically developed to assess motivations for pornography use.
Moher D, Liberati A, Tetzlaff J, Altman DG, Altman D, Antes G, et al. Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement. PLoS Med. 2009;6(7):e1000097.
Popay J, Roberts H, Sowden A, Petticrew M, Arai L, Rodgers M, et al. Guidance on the conduct of narrative synthesis in systematic reviews: a product from the ESRC Methods Programme. 2006. http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.178.3100&rep=rep1&type=pdf. Accessed 6 Apr 2018.
Peter J, Valkenburg PM. Adolescents and pornography: a review of 20 years of research. J Sex Res. 2016;53(4–5):509–31.
Goodson P, McCormick D, Evans A. Searching for sexually explicit materials on the Internet: an exploratory study of college students’ behavior and attitudes. Arch Sex Behav. 2001;30(2):101–18.
Wallmyr G, Welin C. Young people, pornography, and sexuality: sources and attitudes. J Sch Nurs. 2006;22(5):290–5.
Cooper A, Griffin-Shelley E, Delmonico DL, Mathy RM. Online sexual problems: assessment and predictive variables. Sex Addict Compulsivity. 2001;8(3–4):267–85.
McKenna KYA, Green AS, Smith PK. Demarginalizing the sexual self. J Sex Res. 2001;38(4):302–11.
Public Broadcasting Service (PBS). Do you use porn? A survey from the Kinsey Institute. 2002. https://www.pbs.org/wgbh/pages/frontline/shows/porn/etc/surveyres.html. Accessed 20 Feb 2018.
Ross MW, Rosser BRS, McCurdy S, Feldman J. The advantages and limitations of seeking sex online: a comparison of reasons given for online and offline sexual liaisons by men who have sex with men. J Sex Res. 2007;44(1):59–71.
•• Paul B, Shim JW. Gender, sexual affect, and motivations for internet pornography use. Int J Sex Health. 2008;20(3):187–99 This study in one of the first and most comprehensive works on the motives underlying Internet use for sexual purposes.
Sabina C, Wolak J, Finkelhor D. The nature and dynamics of Internet pornography exposure for youth. CyberPsychology Behav. 2008;11(6):691–3.
Braun-Courville DK, Rojas M. Exposure to sexually explicit web sites and adolescent sexual attitudes and behaviors. J Adolesc Health. 2009;45(2):156–62.
Lam CB, Chan DKS. The use of cyberpornography by young men in Hong Kong: some psychosocial correlates. Arch Sex Behav. 2007;36(4):588–98.
Seal DW, Benotsch EG, Green M, Snipes DJ, Bull SS, Cejka A, et al. The use of Internet chat rooms to meet sexual partners: a comparison of non-heterosexually identified men with heterosexually identified men and women. Int J Sex Health. 2015;27(1):1–15.
Ross MW, Mansson SA, Daneback K. Prevalence, severity and correlates of problematic sexual Internet use in Swedish men and women. Arch Sex Behav. 2012;51(2):459–66.
Kerstens J, Stol W. Receiving online sexual requests and producing online sexual images: the multifaceted and dialogic nature of adolescents’ online sexual interactions. Cyberpsychology. 2014;8(1).
Daneback K, Sevcikova A, Mänsson S-A, Ross MW. Outcomes of using the internet for sexual purposes: fulfilment of sexual desires. Sex Health. 2013;10(1):26–31.
Mitchell KJ, Ybarra ML, Korchmaros JD, Kosciw JG. Accessing sexual health information online: use, motivations and consequences for youth with different sexual orientations. Health Educ Res. 2014;29(1):147–57.
Löfgren-Mårtenson L, Månsson S-A. Lust, love, and life: a qualitative study of Swedish adolescents’ perceptions and experiences with pornography. J Sex Res. 2010;47(6):568–79.
Baltazar A, Helm HE, McBride D, Hopkins G, Stevens JV. Internet pornograpy use in the context of external and internal religiosity. J Psychol Theol. 2010;38(1):32–40.
De Souza-Aranha RA, Baltieri DA. A preliminary model of motivation for pornography consumption among men participating in zoophilic virtual environments. J Sex Marital Ther. 2016;42(2):143–57.
Ucar T, Golbasi Z, Senturk-Erenel A. Sexuality and the Internet: a study of the perspectives of Turkish university students. Cyberpsychology, Behav Soc Netw. 2016;19(12):740–5.
Chen A-S, Leung M, Chen C-H, Yang SC. Exposure to Internet pornography among Taiwanese adolescents. Soc Behav Personal an Int J. 2013;41(1):157–64.
Brown CC, Durtschi JA, Carroll JS, Willoughby BJ. Understanding and predicting classes of college students who use pornography. Comput Hum Behav. 2017;66:114–21.
Baltieri DA, Junqueira-Aguiar AS, De Oliveira VH, De Souza-Gatti AL, De Souza-Aranha RA. Validation of the Pornography Consumption Inventory in a sample of male Brazilian university students. J Sex Marital Ther. 2015;41(6):649–60.
Rothman EF, Kaczmarsky C, Burke N, Jansen E, Baughman A. “Without porn … I wouldn’t know half the things I know now”: a qualitative study of pornography use among a sample of urban, low-income, Black and Hispanic youth. J Sex Res. 2015;52(7):736–46.
Baltieri DA, De Souza-Gatti AL, De Oliveira VH, Junqueira-Aguiar AS, De Souza-Aranha RA. A validation study of the Brazilian version of the pornography consumption inventory (PCI) in a sample of female university students. J Forensic Legal Med. 2016;38:81–6.
Wéry A, Billieux J. Online sexual activities: an exploratory study of problematic and non-problematic usage patterns in a sample of men. Comput Hum Behav. 2016;56:257–66. https://doi.org/10.1016/j.chb.2015.11.046.
•• Doornwaard SM, den Boer F, Vanwesenbeeck I, van Nijnatten CHCJ, ter Bogt TFM, van den Eijnden RJJM. Dutch adolescents’ motives, perceptions, and reflections toward sex-related Internet use: results of a web-based focus-group study. J Sex Res. 2017;54(8):1038–50 This study provides insight into adolescents’ motives, perceptions, and reflections toward Internet use for sexual purposes.
Anisimowicz Y, O’Sullivan LF. Men’s and women’s use and creation of online sexually explicit materials including fandom-related works. Arch Sex Behav. 2017;46(3):823–33.
Carsten JM, Spector PE. Unemployment, job satisfaction, and employee turnover: a meta-analytic test of the Muchinsky model. J Appl Psychol. 1987;72(3):374–81.
Hopewell S, Clarke MJ, Stewart L, Tierney J. Time to publication for results of clinical trials. Cochrane Database Syst Rev. 2007;2:MR000011.
Kvalem IL, Træen B, Lewin B, Štulhofer A. Self-perceived effects of Internet pornography use, genital appearance satisfaction, and sexual self-esteem among young Scandinavian adults. Cyberpsychology J Psychosoc Res Cybersp 2014;8(4). https://doi.org/10.5817/CP2014-4-4
Billieux J, Schimmenti A, Khazaal Y, Maurage P, Heeren A. Are we overpathologizing everyday life? A tenable blueprint for behavioral addiction research. J Behav Addict. 2015;4(3):119–23.
Cooper A, Griffin-Shelley E. The internet: the next sexual revolution. In: Cooper A, editor. Sex & the internet: a guidebook for clinicians. New York: Brunner-Routledge; 2002. p. 1–15.
Young KS, Griffin-shelley E, Cooper A, O’mara J, Buchanan J. Online infidelity: a new dimension in couple relationships with implications for evaluation and treatment. Sex Addict Compulsivity. 2000;7(1–2):59–74.
Bryant J, Brown D. Uses of pornography. In: Zillmann D, editor. Pornography: research advances and policy considerations. Hillsdale: Erlbaum; 1989. p. 25–55.
• Grubbs J, Braden AL, Kraus S, Wilt J, Wright PJ. Pornography and pleasure-seeking: toward a hedonic reinforcement model. 2017. https://osf.io/ykq8s/. Accessed 5 Apr 2018. Proposal of a new theoretical model (“Hedonic Reinforcement Model of pornography consumption”) to explain pornography use and abuse based on two motives: seeking for sexual pleasure and emotional avoidance.
Suls J, Rothman A. Evolution of the biopsychosocial model: prospects and challenges for health psychology. Health Psychol. 2004;23(2):119–25.
Ross MW. Typing, doing, and being: sexuality and the Internet. J Sex Res. 2005;42(4):342–52.
Daneback K, Cooper A, Månsson S-A. An Internet study of cybersex participants. Arch Sex Behav. 2005;34(3):321–8.
Wu S, Ward J. The mediation of gay men’s lives: a review on gay dating app studies. Sociol Compass. 2018;12(2):e12560.
Timmermans E, De Caluwé E. Development and validation of the Tinder Motives Scale (TMS). Comput Hum Behav. 2017;70:341–50.
Craft AJ. Love 2.0: a quantitative exploration of sex and relationships in the virtual world second life. Arch Sex Behav. 2012;41(4):939–47.
Hald GM, Štulhofer A. What types of pornography do people use and do they cluster? Assessing types and categories of pornography consumption in a large-scale online sample. J Sex Res. 2016;53(7):849–59.
Tripodi F, Eleuteri S, Giuliani M, Rossi R, Livi S, Petruccelli I, et al. Unusual online sexual interests in heterosexual Swedish and Italian university students. Theol Sex. 2015;24(4):e84–93.
Deleuze J, Long J, Liu T, Maurage P, Billieux J. Passion or addiction? Correlates of healthy versus problematic use of videogames in a sample of French-speaking regular players. Addict Behav. 2018;82:114–21.
Grubbs JB, Stauner N, Exline JJ, Pargament KI, Lindberg MJ. Perceived addiction to Internet pornography and psychological distress: examining relationships concurrently and over time. Psychol Addict Behav. 2015;29(4):1056–67.
Wetterneck CT, Burgess AJ, Short MB, Smith AH, Cervantes ME. The role of sexual compulsivity, impulsivity, and experiential avoidance in internet pornography use. Psychol Rec. 2012;62(1):3–18.
Gagnon JH, Simon W. Sexual conduct: the social sources of human sexuality. 2nd ed. New Brunswick: Transaction Publishers; 2009.