Yıl: 2018 Cilt: 5 Sayı: 2 Sayfa Aralığı: 227 - 247 Metin Dili: Türkçe İndeks Tarihi: 04-11-2019

Dijital Teknoloji Kullanımının Çocukların Gelişimi ve Sağlığı Üzerine Olumsuz Etkileri

Öz:
Günümüzde çocuklar ve ergenler hem geleneksel hem de modern teknolojiyle iç içe büyümektedirler. Televizyon gibi geleneksel teknolojilerin kullanım süresindeki artışın ve izlenen içeriklerin, çocukların gelişimive sağlığı üzerinde olumsuz etkileri olduğu bilinmekle birlikte, son yıllarda daha da yaygınlaşan bilgisayar,tablet ve akıllı telefon gibi modern teknolojik cihazların kullanımının da çocuklar için hem yararlı olduğuhem de sağlık riskleri taşıdığı yapılan çalışmalarla kanıtlanmıştır. Çocukların teknolojik cihazları uygun olmayan süre, sıklık ve farklı duruş pozisyonlarında kullanmalarının gelişimsel problemler, kas-iskelet sistemiproblemleri, fiziksel inaktivite, obezite ve uyku kalitesinde yetersizlik gibi sağlık riskleri doğurduğu görülmektedir. Bu çalışma, dijital teknoloji kullanımının çocuklar üzerinde oluşturduğu klinik sorunlarla ilgililiteratürü gözden geçirmektedir. Çocuklarda ve ergenlerde sağlıklı yaşamı geliştirmek için teknolojik cihazkullanımının süre, sıklık ve içeriklerinin gözetim altında olması, yeterli fiziksel aktivite, sağlıklı beslenme,iyi uyku hijyeni ve besleyici bir sosyal çevre sağlanması önemlidir.
Anahtar Kelime:

Konular: Temel Sağlık Hizmetleri Sağlık Bilimleri ve Hizmetleri

The Negative Effects of Digital Technology Usage on Children’s Development and Health

Öz:
Today, children and adolescents are growing up exposed to both traditional and modern technology. While it is known that the increase in the use of traditional technology, such as television and its content, have negative effects on children’s development and health, studies have shown such modern technologies as smartphones, tablets, and computers that have been developed and become increasingly widespread over the past decade to be beneficial and to constitute health risks for children. It seems that children’s inappropriate use of such technological devices in terms of content, duration, frequency, and the posture they adopt while using them pose a variety of health risks, including developmental problems, musculoskeletal problems, physical inactivity, obesity, and inadequate sleep quality. This study reviews the literature on the clinical problems that digital technology use has on children. In order for children and adolescents to adopt a healthy life style, it is important to monitor the time, frequency, and content viewed while using technological devices and to ensure that children have or develop adequate physical activity opportunities, healthy eating habits, proper sleep cycles, and a nurturing social environment.
Anahtar Kelime:

Konular: Temel Sağlık Hizmetleri Sağlık Bilimleri ve Hizmetleri
Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
  • Adams, M. (2005). The promise of automatic speech recognition for fostering literacy growth in children and adults. In M. McKenna, L. Labbo, R. Kieffer, & D. Reinking (Eds.), Handbook of literacy and technology (Vol. 2., pp. 109–128). Hillsdale, NJ: Lawrence Erlbaum Associates.
  • Akçay, D. & Özcebe, H. (2012). Okul öncesi eğitim alan çocukların ve ailelerinin bilgisayar oyunu oynama alışkanlıklarının değerlendirilmesi. Çocuk Dergisi, 12(2), 66–71.
  • Anderson, S. E., & Whitaker, R. C. (2010). Household routines and obesity in US preschool-aged children. Journal of the American Academy of Pediatrics, 125(3), 420–428.
  • Arısoy, Ö. (2009). İnternet bağımlılığı ve tedavisi. Psikiyatride Güncel Yaklaşımlar, 1(1), 55–67.
  • Arnas, Y. A. (2005). 3-18 yaş grubu çocuk ve gençlerin interaktif iletişim araçlarını kullanma alışkanlıklarının değerlendirilmesi. The Turkish Online Journal of Educational Technology, 4(4), 59–66.
  • Bailey, K., West, R., & Anderson, C. A. (2011). The influence of video games on social, cognitive, and affective information processing. In J. Decety & J. Cacioppo (Eds.), The Oxford handbook of social neuroscience (pp. 1001–1011). Oxford University Press.
  • Bel-Serrat, S., Mouratidou, T., Santaliestra-Pasías, A. M., Iacoviello, L., Kourides, Y. A., Marild, S., & Stomfai, S. (2013). Clustering of multiple lifestyle behaviours and its association to cardiovascular risk factors in children: The IDEFICS study. European Journal of Clinical Nutrition, 67(8), 848–854.
  • Blanchard, J., & Moore, T. (2010). The digital world of young children: Impact on emergent literacy. London, UK: Pearson Foundation.
  • Bracken, S. S., & Fischel, J. E. (2008). Family reading behavior and early literacy skills in preschool children from low-income backgrounds. Early Education and Development, 19(1), 45–67.
  • Braithwaite, I., Stewart, A. W., Hancox, R. J., Beasley, R., Murphy, R., Mitchell, E. A., & Group, I. P. T. S. (2013). The worldwide association between television viewing and obesity in children and adolescents: Cross sectional study. Plos One, 8(9), 1–8.
  • Breen, R., Pyper, S., Rusk, Y., & Dockrell, S. (2007). An investigation of children’s posture and discomfort during computer use. Journal of Ergonomics, 50(10), 1582–1592.
  • Brown, A. (2011). Media use by children younger than 2 years. Journal ofthe American Academy of Pediatrics, 128(5), 1040–1045.
  • Bruni, O., Sette, S., Fontanesi, L., Baiocco, R., Laghi, F., & Baumgartner, E. (2015). Technology use and sleep quality in preadolescence and adolescence. Journal of clinical sleep medicine: Official Publication of the American Academy of Sleep Medicine, 11(12), 1433.
  • Cameron, A., Stralen, M., Brug, J., Salmon, J., Bere, E., ChinAPaw, M., & Moreno, L. (2013). Television in the bedroom and increased body weight: Potential explanations for their relationship among European schoolchildren. Pediatric Obesity, 8(2), 130–141.
  • Cespedes, E. M., Gillman, M. W., Kleinman, K., Rifas-Shiman, S. L., Redline, S., & Taveras, E. M. (2014). Television viewing, bedroom television, and sleep duration from infancy to mid- childhood. Journal ofthe American Academy of Pediatrics, 133(5), 1163–1171.
  • Chaput, J. P., Klingenberg, L., Astrup, A., & Sjödin, A. M. (2011). Modern sedentary activities promote overconsumption of food in our current obesogenic environment. Obesity Reviews, 12(5), e12–e20.
  • Chassiakos, Y. L. R., Radesky, J., Christakis, D., Moreno, M. A., & Cross, C. (2016). Children and adolescents and digital media. Journal ofthe American Academy of Pediatrics, 138(5), 3–6.
  • Chonchaiya, W., & Pruksananonda, C. (2008). Television viewing associates with delayed language development. ActaPaediatrica, 97(7), 977–982.
  • Coiro, J., Knobel, M., Lankshear, C., & Leu, D. J. (2008). Central issues in new literacies and new literacies research. In J. Coiro, M. Knobel, C. Lankshear, & D. J. Leu (Eds.), Handbook of research on new literacies (pp. 1–21). Lawrence Erlbaum Associates, Taylor & Francis.
  • Cordes, C., & Miller, E. (2000). Fool’s gold: A critical look at computers in childhood. Maryland, MD: Alliance for Childhood.
  • Cox, R., Skouteris, H., Rutherford, L., Fuller-Tyszkiewicz, M., & Hardy, L. L. (2012). Television viewing, television content, food intake, physical activity and body mass index: A cross- sectional study of preschool children aged 2-6 years. Health Promotion Journal of Australia, 23(1), 58–62.
  • De Jong, E., Visscher, T., HiraSing, R., Heymans, M., Seidell, J., & Renders, C. (2013). Association between TV viewing, computer use and overweight, determinants and competing activities of screen time in 4-to 13-year-old children. International Journal of Obesity, 37(1), 47–53.
  • Della Sofferenza, O. C. S., & Rotondo, S. G. (2006). Age-dependent association of exposure to television screen with children’s urinary melatonin excretion. Neuroendocrinology Letters, 27(1), 73–80.
  • eMarketer. (2016, November 23). Mobile phone, smartphone usage varies globally. Retrieved from https://www.emarketer.com/Article/Mobile-Phone-Smartphone-Usage-Varies-Globally/1014738
  • Fakhouri, T. H., Hughes, J. P., Brody, D. J., Kit, B. K., & Ogden, C. L. (2013). Physical activity and screen-time viewing among elementary school-aged children in the United States from 2009 to 2010. Jama Pediatrics, 167(3), 223–229.
  • Fan, J., McCandliss, B. D., Fossella, J., Flombaum, J. I., & Posner, M. I. (2005). The activation of attentional networks. Neuroimage, 26(2), 471–479.
  • Fields, D. A., & Kafai, Y. B. (2009). A connective ethnography of peer knowledge sharing and diffusion in a tween virtual world. International Journal of Computer-Supported Collaborative Learning, 4(1), 47–68.
  • Gortmaker, S. L., Must, A., Sobol, A. M., Peterson, K., Colditz, G. A., & Dietz, W. H. (1996). Television viewing as a cause of increasing obesity among children in the United States, 1986- 1990. Archives of Pediatrics & Adolescent Medicine, 150(4), 356–362.
  • Granic, I., Lobel, A., & Engels, R. C. (2014). The benefits of playing video games. American Psychologist, 69(1), 66–78. Griffiths, M. (1995, February). Technological addictions. Clinical Psychology Forum, 71, 14–19.
  • Gürcan, A., Özhan, S. & Uslu, R. (2008). Dijital oyunlar ve çocuklar üzerindeki etkileri. Ankara: Başbakanlık Aile ve Sosyal Araştırmalar Genel Müdürlüğü.
  • Hancox, R. J., & Poulton, R. (2006). Watching television is associated with childhood obesity: But is it clinically important? International Journal of Obesity, 30(1), 171–175.
  • Harris, C., & Straker, L. (2000). Survey of physical ergonomics issues associated with school children’s use of laptop computers. International Journal of Industrial Ergonomics, 26(3), 337–346.
  • Harris, C., Straker, L., Pollock, C., & Smith, A. (2015). Children, computer exposure and musculoskeletal outcomes: The development of pathway models for school and home computer- related musculoskeletal outcomes. Journal of Ergonomics, 58(10), 1611–1623.
  • Hinkley, T., Verbestel, V., Ahrens, W., Lissner, L., Molnár, D., Moreno, L. A., & Russo, P. (2014). Early childhood electronic media use as a predictor of poorer well-being: A prospective cohort study. Jama Pediatrics, 168(5), 485–492.
  • Howie, E. K., Coenen, P., Campbell, A. C., Ranelli, S., & Straker, L. M. (2017). Head, trunk and arm posture amplitude and variation, muscle activity, sedentariness and physical activity of 3 to 5 year-old children during tablet computer use compared to television watching and toy play. Applied Ergonomics, 65, 41–50.
  • Hysing, M., Pallesen, S., Stormark, K. M., Jakobsen, R., Lundervold, A. J., & Sivertsen, B. (2015). Sleep and use of electronic devices in adolescence: Results from a large population-based study. BMJ Open, 5, e006748.
  • İşçibaşı, Y. (2011). Bilgisayar, internet ve video oyunları arasında çocuklar. Selçuk Üniversitesi İletişim Fakültesi Akademik Dergisi, 7(1), 122–130.
  • Jacobs, K., Hudak, S., & McGiffert, J. (2009). Computer-related posture and musculoskeletal discomfort in middle school students. Work, 32(3), 275–283.
  • Johnson, J. E., & Christie, J. F. (2009). Play and digital media. Computers in the Schools, 26(4), 284–289.
  • Kelly, G., Dockrell, S., & Galvin, R. (2009). Computer use in school: Its effect on posture and discomfort in schoolchildren. Work, 32(3), 321–328.
  • King, A. L. S., Valença, A. M., Silva, A. C., Sancassiani, F., Machado, S., & Nardi, A. E. (2014). “Nomophobia”: Impact of cell phone use interfering with symptoms and emotions of individuals with panic disorder compared with a control group. Clinical Practice and Epidemiology in Mental Health, 10, 28–35.
  • Kutner, L., & Olson, C. (2008). Grand theft childhood: The surprising truth about violent video games and what parents can do. New York, NY: Simon and Schuster.
  • Laurson, K. R., Eisenmann, J. C., Welk, G. J., Wickel, E. E., Gentile, D. A., & Walsh, D. A. (2008). Combined influence of physical activity and screen time recommendations on childhood overweight. The Journal of Pediatrics, 153(2), 209–214.
  • Levenson, J. C., Shensa, A., Sidani, J. E., Colditz, J. B., & Primack, B. A. (2016). The association between social media use and sleep disturbance among young adults. Preventive Medicine, 85, 36–41.
  • Li, S., Jin, X., Wu, S., Jiang, F., Yan, C., & Shen, X. (2007). The impact of media use on sleep patterns and sleep disorders among school-aged children in China. Sleep, 30(3), 361–367.
  • Linebarger, D. L., & Piotrowski, J. T. (2009). TV as storyteller: How exposure to television narratives impacts at–risk preschoolers’ story knowledge and narrative skills. British Journal of Developmental Psychology, 27(1), 47–69.
  • Mistry, K. B., Minkovitz, C. S., Strobino, D. M., & Borzekowski, D. L. (2007). Children’s television exposure and behavioral and social outcomes at 5.5 years: Does timing of exposure matter. Journal ofthe American Academy of Pediatrics, 120(4), 762–769.
  • Mitchell, J., Pate, R., Beets, M., & Nader, P. (2013). Time spent in sedentary behavior and changes in childhood BMI: A longitudinal study from ages 9 to 15 years. International Journal of Obesity, 37(1), 54–60.
  • Morahan-Martin, J. (2005). Internet abuse: Addiction? Disorder? Symptom? Alternative explanations. Social Science Computer Review, 23(1), 39–48.
  • Nathanson, A. I., Sharp, M. L., Aladé, F., Rasmussen, E. E., & Christy, K. (2013). The relation between television exposure and theory of mind among preschoolers. Journal of Communication, 63(6), 1088–1108.
  • Oates, S., Evans, G., & Hedge, A. (1998). A preliminary ergonomic and postural assessment of computer work settings in American Elementary Schools. Computers in the Schools, 14(3), 4–12.
  • Pagani, L. S., Fitzpatrick, C., Barnett, T. A., & Dubow, E. (2010). Prospective associations between early childhood television exposure and academic, psychosocial, and physical well-being by middle childhood. Archives of Pediatrics & Adolescent Medicine, 164(5), 425–431.
  • Pala, F. K., Pala, F. K. & Erdem, M. (2015). Dijital oyun tercihi ve oyun tercih nedeni ile cinsiyet, sınıf düzeyi ve öğrenme stili arasındaki ilişkiler üzerine bir çalışma. Ahi Evran Üniversitesi Kırşehir Eğitim Fakültesi Dergisi, 12(2), 53–71.
  • Palmer, S. (2015). Toxic childhood: How the modern world is damaging our children and what we can do about it. Los Angeles, CA: Orion.
  • Pearson, N., & Biddle, S. J. (2011). Sedentary behavior and dietary intake in children, adolescents, and adults: A systematic review. American Journal of Preventive Medicine, 41(2), 178–188.
  • Plowman, L., McPake, J., & Stephen, C. (2010). The technologisation of childhood? Young children and technology in the home. Children & Society, 24(1), 63–74.
  • Provenzo, J. E. (1992). What do video games teach. Education Digest, 58(4), 56–58.
  • Rideout, V., Saphir, M., Tsang, V., & Bozdech, B. (2011). Zero to eight children’s media use in America. San Francisco, CA: Common Sense Media.
  • Rideout, V. J., Vandewater, E. A., & Wartella, E. A. (2003). Zero to six: Electronic media in the lives of infants, toddlers and preschoolers. California, CA: Henry J Kaiser Family Foundation.
  • Rosen, L. D., Lim, A., Felt, J., Carrier, L. M., Cheever, N. A., Lara-Ruiz, J., & Rokkum, J. (2014). Media and technology use predicts ill-being among children, preteens and teenagers independent of the negative health impacts of exercise and eating habits. Computers in Human Behavior, 35, 364–375.
  • Sandercock, G. R., Ogunleye, A., & Voss, C. (2012). Screen time and physical activity in youth: Thief of time or lifestyle choice? Journal of Physical Activity and Health, 9(7), 977–984.
  • Sevi, O. M., Odabaşıoğlu, G., Genç, Y., Soykal, İ. & Öztürk, Ö. (2014). Cep telefonu envanteri: Standardizasyonu ve kişilik özellikleriyle ilişkisinin incelenmesi. Bağımlılık Dergisi, 15(1), 15–22.
  • Sevindik, T. (2011). Determining the attitudes of the preservice teachers about distance education applications. Energy Education Science and Technology Part B-Social and Educational Studies, 3(4), 527–534.
  • Sisson, S. B., Broyles, S. T., Baker, B. L., & Katzmarzyk, P. T. (2010). Screen time, physical activity, and overweight in US youth: National Survey of Children’s Health 2003. Journal of Adolescent Health, 47(3), 309–311.
  • Straker, L. M., Coleman, J., Skoss, R., Maslen, B. A., Burgess-Limerick, R., & Pollock, C. M. (2008). A comparison of posture and muscle activity during tablet computer, desktop computer and paper use by young children. Ergonomics, 51(4), 540–555.
  • Strasburger, V. C., Jordan, A. B., & Donnerstein, E. (2010). Health effects of media on children and adolescents. Journal of the American Academy of Pediatrics, 125(4), 756–767.
  • Toran, M., Ulusoy, Z., Aydın, B., Deveci, T. & Akbulut, A. (2016). Çocukların dijital oyun kullanımına ilişkin annelerin görüşlerinin değerlendirilmesi. Kastamonu Eğitim Dergisi, 24(5), 22–63.
  • Tuncer, A., & Yalçın, S. (1999). Multimedia and children in Turkey. Journal ofthe American Academy of Pediatrics, 41, 27–34.
  • Tüzün, Ü. (2002). Gelişen iletişim araçlarının çocuk ve gençlerin etkileşimi üzerine etkisi. Düşünen Adam, 15(1), 46–50.
  • Van den Bulck, J., & Van Mierlo, J. (2004). Energy intake associated with television viewing in adolescents: A cross sectional study. Appetite, 43(2), 181–184.
  • Vandewater, E. A., Rideout, V. J., Wartella, E. A., Huang, X., Lee, J. H., & Shim, M.-S. (2007). Digital childhood: Electronic media and technology use among infants, toddlers, and preschoolers. Journal ofthe American Academy of Pediatrics, 119(5), 1006–1015.
  • Vijakkhana, N., Wilaisakditipakorn, T., Ruedeekhajorn, K., Pruksananonda, C., & Chonchaiya, W. (2015). Evening media exposure reduces night–time sleep. ActaPaediatrica, 104(3), 306–312.
  • Wen, L. M., Baur, L. A., Rissel, C., Xu, H., & Simpson, J. M. (2014). Correlates of body mass index and overweight and obesity of children aged 2 years: Findings from the healthy beginnings trial. Obesity a Research Journal, 22(7), 1723–1730.
  • Wethington, H., Pan, L., & Sherry, B. (2013). The Association of screen time, television in the bedroom, and obesity among school–aged youth: 2007 National Survey of Children’s Health. Journal of School Health, 83(8), 573–581.
  • Yavuzer, H. (2003). Çocuğu tanımak ve anlamak. İstanbul: Remzi Kitabevi.
  • Yen, C.-F., Tang, T.-C., Yen, J.-Y., Lin, H.-C., Huang, C.-F., Liu, S.-C., & Ko, C.-H. (2009). Symptoms of problematic cellular phone use, functional impairment and its association with depression among adolescents in Southern Taiwan. Journal of Adolescence, 32(4), 863–873.
  • Yüzer, T. V. (2006). Günlük yaşamda internet ve medya ilişkileri. Selçuk Üniversitesi İletişim Fakültesi Akademik Dergisi, 4(2), 86–96.
  • Zimmerman, F. J., & Christakis, D. A. (2007). Associations between content types of early media exposure and subsequent attentional problems. Journal of the American Academy of Pediatrics, 120(5), 986–992.
APA MUSTAFAOĞLU R, ZİREK E, YASACI Z, RAZAK ÖZDİNÇLER A (2018). Dijital Teknoloji Kullanımının Çocukların Gelişimi ve Sağlığı Üzerine Olumsuz Etkileri. , 227 - 247.
Chicago MUSTAFAOĞLU RÜSTEM,ZİREK EMRAH,YASACI ZEYNAL,RAZAK ÖZDİNÇLER Arzu Dijital Teknoloji Kullanımının Çocukların Gelişimi ve Sağlığı Üzerine Olumsuz Etkileri. (2018): 227 - 247.
MLA MUSTAFAOĞLU RÜSTEM,ZİREK EMRAH,YASACI ZEYNAL,RAZAK ÖZDİNÇLER Arzu Dijital Teknoloji Kullanımının Çocukların Gelişimi ve Sağlığı Üzerine Olumsuz Etkileri. , 2018, ss.227 - 247.
AMA MUSTAFAOĞLU R,ZİREK E,YASACI Z,RAZAK ÖZDİNÇLER A Dijital Teknoloji Kullanımının Çocukların Gelişimi ve Sağlığı Üzerine Olumsuz Etkileri. . 2018; 227 - 247.
Vancouver MUSTAFAOĞLU R,ZİREK E,YASACI Z,RAZAK ÖZDİNÇLER A Dijital Teknoloji Kullanımının Çocukların Gelişimi ve Sağlığı Üzerine Olumsuz Etkileri. . 2018; 227 - 247.
IEEE MUSTAFAOĞLU R,ZİREK E,YASACI Z,RAZAK ÖZDİNÇLER A "Dijital Teknoloji Kullanımının Çocukların Gelişimi ve Sağlığı Üzerine Olumsuz Etkileri." , ss.227 - 247, 2018.
ISNAD MUSTAFAOĞLU, RÜSTEM vd. "Dijital Teknoloji Kullanımının Çocukların Gelişimi ve Sağlığı Üzerine Olumsuz Etkileri". (2018), 227-247.
APA MUSTAFAOĞLU R, ZİREK E, YASACI Z, RAZAK ÖZDİNÇLER A (2018). Dijital Teknoloji Kullanımının Çocukların Gelişimi ve Sağlığı Üzerine Olumsuz Etkileri. Addicta: The Turkish Journal on Addictions, 5(2), 227 - 247.
Chicago MUSTAFAOĞLU RÜSTEM,ZİREK EMRAH,YASACI ZEYNAL,RAZAK ÖZDİNÇLER Arzu Dijital Teknoloji Kullanımının Çocukların Gelişimi ve Sağlığı Üzerine Olumsuz Etkileri. Addicta: The Turkish Journal on Addictions 5, no.2 (2018): 227 - 247.
MLA MUSTAFAOĞLU RÜSTEM,ZİREK EMRAH,YASACI ZEYNAL,RAZAK ÖZDİNÇLER Arzu Dijital Teknoloji Kullanımının Çocukların Gelişimi ve Sağlığı Üzerine Olumsuz Etkileri. Addicta: The Turkish Journal on Addictions, vol.5, no.2, 2018, ss.227 - 247.
AMA MUSTAFAOĞLU R,ZİREK E,YASACI Z,RAZAK ÖZDİNÇLER A Dijital Teknoloji Kullanımının Çocukların Gelişimi ve Sağlığı Üzerine Olumsuz Etkileri. Addicta: The Turkish Journal on Addictions. 2018; 5(2): 227 - 247.
Vancouver MUSTAFAOĞLU R,ZİREK E,YASACI Z,RAZAK ÖZDİNÇLER A Dijital Teknoloji Kullanımının Çocukların Gelişimi ve Sağlığı Üzerine Olumsuz Etkileri. Addicta: The Turkish Journal on Addictions. 2018; 5(2): 227 - 247.
IEEE MUSTAFAOĞLU R,ZİREK E,YASACI Z,RAZAK ÖZDİNÇLER A "Dijital Teknoloji Kullanımının Çocukların Gelişimi ve Sağlığı Üzerine Olumsuz Etkileri." Addicta: The Turkish Journal on Addictions, 5, ss.227 - 247, 2018.
ISNAD MUSTAFAOĞLU, RÜSTEM vd. "Dijital Teknoloji Kullanımının Çocukların Gelişimi ve Sağlığı Üzerine Olumsuz Etkileri". Addicta: The Turkish Journal on Addictions 5/2 (2018), 227-247.