Kekemeliği Olan ve Olmayan Çocukların Çalışma Belleği Performanslarının Karşılaştırılması

Giriş: Bu çalışmanın ilk amacı; kekemeliği olan ve olmayan çocukların çalışma belleği performanslarının karşılaştırılmasıdır. Ayrıca kekemeliği olan çocuklarda kekemelik sıklığı ile çalışma belleği bileşenleri arasındaki ilişkinin incelenmesi amaçlanmaktadırYöntem: Çalışmanın katılımcı grubu, 20 kekemeliği olan ve 20 yaş ve cinsiyete göre eşleştirilmiş herhangi bir dil ve konuşma bozukluğu olmayan çocuktan oluşmaktadır. Çalışma belleğinin değerlendirilmesi için katılımcılara Çalışma Belleği Ölçeği uygulanmıştır. Ayrıca kekemeliği olan grupta en az 400 heceden oluşan konuşma örneği üzerinden kekelenen hece yüzdesi hesaplanmıştır.Bulgular: Yapılan analizler sonucunda; kekemeliği olan ve olmayan çocukların çalışma belleği sözel ve görsel alt test skorları arasındaki farkın istatistiksel olarak anlamlı düzeyde olmadığı görülmüştür. Ancak; kekemeliği olan grubun sözel alt test ortalama puanlarının, kontrol grubundan daha düşük olduğu görülmüştür.Tartışma: Çalışmanın sonuçları, kekemeliği olan çocuklarda fonolojik bellek ve fonolojik kodlama süreçlerinde farklılıklar olabileceğini düşündürmektedir. Ek olarak, kekemeliği olan çocukların görsel bellek alt test skorlarının istatistiksel olarak anlamlı olmamakla birlikte kontrol grubundan daha yüksek olması, bu durumun telafi edici bir mekanizma olabileceği savını destekler niteliktedir.Sonuç, Sınırlılıklar ve Öneriler: Gelecek çalışmalarda daha fazla sayıda ve daha geniş bir yaş dağılımı olan katılımcıya ulaşarak, farklı davranışsal ölçüm araçları ve beyin görüntüleme tekniklerinin birlikte kullanıldığı boylamsal yöntemlerin bu konunun aydınlatılmasına katkı sağlayacağı düşünülmektedir.

Anahtar Kelimeler:

Anlamsız sözcük tekrarı, fonolojik kodlama, fonolojik bellek, kekemelik, sözel bellek, görsel bellek, çalışma belleği

The Comparison of Working Memory Performance in Children With and Without Stuttering

Introduction: The aim of this study is to compare working memory performance between children with and without stuttering. The second aim of the study is to examine the relationship between stuttering frequency and working memory performance in CWS.Method: The study sample included 20 children with stuttering and 20 children without stuttering and any other concominant speech and language disorders. The participants were matched for age and gender. Working Memory Scale was used for the assessment of working memory. Data from CWS and CWNS were compared with independent samples t-test or Mann-Whitney U test based on normality analyses. The relation between the variables in CWS was examined with Pearson correlation analysis. Also, the percentage of stuttered syllables in a speech sample was calculated in children with stuttering.Results: There was not a significant difference in verbal and visual memory subtests scores between the children with and without stuttering. However, the verbal memory subtest scores were lower in the children with stuttering.Discussion: Despite the insignificant results, the study attracts attention to deficits in phonological memory and phonological coding in children with stuttering. In addition, although there was not a significant difference in the visual memory subtests, the children who stutter displayed higher performance in the visual memory subtests. This could be considered as a compensatory mechanism.Conclusion, Limitations and Suggestions: It can be suggested that further longitudinal studies having larger samples including different age groups, using different behavioral measurement tools and brain imaging techniques may shed light on the issue.

Keywords:

Nonword repetition, phonological encoding, phonological memory, stuttering, verbal memory, visual memory, working memory,

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Acheson, D. J., & MacDonald, M. C. (2009). Verbal working memory and language production: Common approaches to the serial ordering of verbal information. Psychological Bulletin, 135(1), 50-68. https://doi.org/10.1037/a0014411
Adams, A., & Gathercole, S. (1995). Phonological working memory and speech production in preschool children. Journal of Speech, Language, and Hearing Research, 38(2), 403-414. https://doi.org/10.1044/jshr.3802.403
Alloway, T. P., Gathercole, S. E., Adams, A. M., Willis, C., Eaglen, R., & Lamont, E. (2005). Working memory and phonological awareness as predictors of progress towards early learning goals at school entry. British Journal of Developmental Psychology, 23(3), 417-426. https://doi.org/10.1348/026151005X26804
Alm, P., & Risberg, J. (2007). Stuttering in adults: The acoustic startle response, temperamental traits, and biological factors. Journal of Communication Disorders, 40(1), 1-41. https://doi.org/10.1016/j.jcomdis.2006.04.001
Alt, M., & Plante, E. (2006). Factors that influence lexical and semantic fast mapping of young children with specific language impairment. Journal of Speech, Language, and Hearing Research, 49(5), 941-954. https://doi.org/10.1044/1092-4388(2006/068)
Anderson, J., Wagovich, S., & Hall, N. (2006). Nonword repetition skills in young children who do and do not stutter. Journal of Fluency Disorders, 31(3), 77-199. https://doi.org/10.1016/j.jfludis.2006.05.001
Anderson, J. D., & Wagovich, S. A. (2010). Relationships among linguistic processing speed, phonological working memory, and attention in children who stutter. Journal of Fluency Disorders, 35(3), 216-34. https://doi.org/10.1016/j.jfludis.2010.04.003
Anderson, J. D., & Ofoe, L. C. (2019). The role of executive function in developmental stuttering. Seminars in Speech and Language, 40(4), 305-319. https://doi.org/10.1055/s-0039-1692965
Anderson, J. D., Wagovich, S. A., & Brown, B. T. (2019). Phonological and semantic contributions to verbal shortterm memory in young children with developmental stuttering. Journal of Speech Language, and Hearing Research, 62(3), 644-667. https://doi.org/10.1044/2018_JSLHR-S-18-0039
Archibald, L. M. D., Joanisse, M. F., & Munson, B. (2013). Motor control and nonword repetition in specific working memory impairment and SLI. Topics in Language Disorders, 33(3), 255-267. https://doi.org/10.1097/TLD.0b013e31829cf5e7
Baddeley, A. (2000). The episodic buffer: A new component of working memory? Trends in Cognitive Sciences, 4(11), 417-423. https://doi.org/10.1016/S1364-6613(00)01538-2
Baddeley, A. (2003). Working memory: Looking back and looking forward. Nature Reviews Neuroscience, 4, 829-839. https://doi.org/10.1038/nrn1201
Baddeley, A. (2012). Working memory: Theories, models, and controversies. Annual Review of Psychology, 63, 1-29. https://doi.org/10.1146/annurev-psych-120710-100422
Baddeley, A. D., & Hitch, G. (1974). Working memory. Psychology of Learning and Motivation, 8, 47-89. https://doi.org/10.1016/S0079-7421(08)60452-1
Bajaj, A. (2007). Working memory involvement in stuttering: Exploring the evidence and research implications. Journal of Fluency Disorders, 32(3), 218-238. https://doi.org/10.1016/j.jfludis.2007.03.002
Bakhtiar, M., Abad-Ali, D., & Sadegh, S. (2007). Nonword repetition ability of children who do and do not stutter and covert repair hypothesis. Indian Journal of Medical Sciences, 61(8), 462-470. https://doi.org/10.4103/0019-5359.33711
Bowers, A., Bowers, L. M., Hudock, D., & Ramsdell-Hudock, H. L. (2018). Phonological working memory in developmental stuttering: Potential insights from the neurobiology of language and cognition. Journal of Fluency Disorders, 58, 94-117. https://doi.org/10.1016/j.jfludis.2018.08.006
Byrd, C. T., Vallely, M., Anderson, J. D., & Sussman, H. (2012). Nonword repetition and phoneme elision in adults who do and do not stutter. Journal of Fluency Disorders, 37(3), 188-201. https://doi.org/10.1016/j.jfludis.2012.03.003
Costelloe, S., Davis, S., Cavenagh, P., & Doneva, S. P. (2019). Attention levels in young children who stutter. Applied Neuropsychology: Child, 8(4), 355-365. https://doi.org/10.1080/21622965.2018.1493996
Cowan, N., Elliott, E. M., Saults, J. S., Morey, C. C., Mattox, S., Hismjatullina, A., & Conway, A. R. A. (2005). On the capacity of attention: Its estimation and its role in working memory and cognitive aptitudes. Cognitive Psychology, 51(1), 42-100. https://doi.org/10.1016/j.cogpsych.2004.12.001
Donaher, J., & Richels, C. (2012). Traits of attention deficit/hyperactivity disorder in school-age children who stutter. Journal of Fluency Disorders, 37(4), 242-252. https://doi.org/10.1016/j.jfludis.2012.08.002
Druker, K., Hennessey, N., Mazzucchelli, T., & Beilby, J. (2019). Elevated attention deficit hyperactivity disorder symptoms in children who stutter. Journal of Fluency Disorders, 59, 80-90. https://doi.org/10.1016/j.jfludis.2018.11.002
Engle, R. W., & Kane, M. J. (2004). Executive attention, working memory capacity, and a two-factor theory of cognitive control. In B. Ross (Ed.), The psychology of learning and motivation (Vol. 44, pp. 145-199). Elsevier.
Ergül, C., Yılmaz, Ç. Ö., & Demir, E. (2018). 5-10 yaş grubu çocuklara yönelik geliştirilmiş çalışma belleği ölçeğinin geçerlik ve güvenirliği [Validity and reliability of the working memory scale for children aged 5-10 years]. Eğitimde Kuram ve Uygulama, 14(2), 187-214. https://doi.org/10.1016/j.jfludis.2012.08.002
Graf-Estes, K., Evans, J. L., & Else-Quest, N. M. (2007). Differences in the nonword repetition performance of children with and without specific language impairment: A meta-analysis. Journal of Speech, Language and Hearing Research, 50(1), 177-195. https://doi.org/10.1044/1092-4388(2007/015)
Guitar, B. (2014). Stuttering: An integrated approach to its nature and treatment (4th ed.). Lippincott Williams & Wilkins.
Hakim, H. B., & Ratner, N. B. (2004). Nonword repetition abilities of children who stutter: An exploratory study. Journal of Fluency Disorders, 29(3), 179-199. https://doi.org/10.1016/j.jfludis.2004.06.001
Healey, E. C., & Reid, R. (2003). ADHD and stuttering: A tutorial. Journal of Fluency Disorders, 28(2), 79-93. https://doi.org/10.1016/S0094-730X(03)00021-4
Howell, P., & Au-Yeung, J. (2002). The explain theory of fluency control and the diagnosis of stuttering. Current Issues in Linguistic Theory, 227, 75-94. https://doi.org/10.1075/cilt.227.08how
Jones, R. D., White, A. J., Lawson, K. H., & Anderson, T. J. (2002). Visuoperceptual and visuomotor deficits in developmental stutterers: An exploratory study. Human Movement Science, 21(5-6), 603-619. https://doi.org/10.1016/S0167-9457(02)00165-3
Kahramaner, M. (2018). Kekeme çocuklarda fonolojik bellek ve görsel-mekansal bellek değerlendirmesi [Evaluation of phonological memory and visuo-spatial sketchpad in children who stutter] (Tez Numarası: 508448) [Yüksek lisans tezi, Hacettepe Üniversitesi]. Yükseköğretim Kurulu Ulusal Tez Merkezi.
Levelt, W. J. M., Roelofs, A., & Meyer, A. S. (1999). A theory of lexical access in speech production. Behavioral and Brain Sciences, 22(1), 1-75. https://doi.org/10.1017/S0140525X99001776
Newman, R., & Bernstein-Ratner, N. (2007). The role of selected lexical factors on confrontation naming accuracy, speed, and fluency in adults who do and do not stutter. Journal of Speech, Language, and Hearing Research, 50(1), 196-213. https://doi.org/10.1044/1092-4388(2007/016)
Oberauer, K. (2019). Working memory and attention - A conceptual analysis and review. Journal of Cognition, 2(1), 1-23. https://doi.org/10.5334/joc.58
Ofoe, L. C., Anderson, J. D., & Ntourou, K. (2018). Short-term memory, inhibition, and attention in developmental stuttering: A meta-analysis. Journal of Speech Language and Hearing Research, 61(7), 1626-1648. https://doi.org/10.1044/2018_JSLHR-S-17-0372
Oyoun, H. A., El Dessouky, H., Shohdi, S., & Fawzy, A. (2010). Assessment of working memory in normal children and children who stutter. Journal of American Science, 6(11), 562-569. https://www.ojhas.org/issue65/2018-1-2.pdf
Pelczarski, K. M., & Yaruss, J. S. (2016). Phonological memory in young children who stutter. Journal of Communication Disorders, 62, 54-66. https://doi.org/10.1016/j.jcomdis.2016.05.006
Piyasik, M., Kozlovskiy, S., Vartanov, A., & Glozman, J. (2013, November 28-December 1). Visual working memory in people with stuttering: ERP study [Conference presentation abstract]. Australasian Cognitive Neuroscience Society Conference, Clayton, Melbourne, Australia. https://www.frontiersin.org/Community/AbstractDetails.aspx?ABS_DOI=10.3389/conf.fnhum.2013.21 2.00174&eid=&sname=
Pellowski, M. W., & Conture, E. G. (2002). Characteristics of speech disfluency and stuttering behaviors in 3- and 4-year-old children. Journal of Speech, Language, and Hearing Research, 45(1), 20-34. https://doi.org/10.1044/1092-4388(2002/002)
Perkins, W. H., Kent, R. D., & Curlee, R. (1991). A theory of neuropsycholinguistic function in stuttering. Journal of Speech, Language, and Hearing Research, 34(4), 734-752. https://doi.org/10.1044/jshr.3404.734
Postma, A., & Kolk, H. (1993). The covert repair hypothesis: Prearticulatory repair processes in normal and stuttered dysfluencies. Journal of Speech, Language, and Hearing Research, 36(3), 472-487. https://doi.org/10.1044/jshr.3603.472
Redick, T. S., & Engle, R. W. (2006). Working memory capacity and attention network test performance. Applied Cognitive Psychology, 20(5), 713-721. https://doi.org/10.1002/acp.1224
Reilly, J., & Donaher, J. (2005). Verbal working memory skills of children who stutter: A preliminary investigation. Contemporary Issues in Communication Science and Disorders, 32(Spring), 38-42. https://doi.org/10.1044/cicsd_32_s_38
Saifpanahi, S., Sobhani-Rad, D., Afzali, M., Izanloo, S., Mardani, N., Gholamian, M., & Farazi, M. (2015). An investigation of the correlation between phonological and visual working memory with severity of stuttering in 6-12 years-old children. Journal of Paramedical Sciences & Rehabilitation, 4(4), 20-26. http://eprints.mums.ac.ir/6316/1/JPSR_Volume%204_Issue%204_Pages%2020-26.pdf
Sasisekaran, J., & Basu, S. (2017). The influence of executive functions on phonemic processing in children who do and do not stutter. Journal of Speech Language and Hearing Research, 60(10), 2792-2807. https://doi.org/10.1044/2017_JSLHR-S-17-0033
Sasisekaran, J. (2013). Nonword repetition and nonword reading abilities in adults who do and do not stutter. Journal of Fluency Disorders, 38(3), 275-289. https://doi.org/10.1016/j.jfludis.2013.06.001
Sasisekaran, J., & Byrd, C. T. (2013a). Nonword repetition and phoneme elision skills in school‐age children who do and do not stutter. International Journal of Language & Communication Disorders, 48(6), 625-639. https://doi.org/10.1111/1460-6984.12035
Sasisekaran, J., & Byrd, C. T. (2013b). A preliminary investigation of segmentation and rhyme abilities of children who stutter. Journal of Fluency Disorders, 38(2), 222-234. https://doi.org/10.1016/j.jfludis.2012.12.004
Sasisekaran, J., & Weisberg, S. (2014). Practice and retention of nonwords in adults who stutter. Journal of Fluency Disorders, 41, 55-71. https://doi.org/10.1016/j.jfludis.2014.02.004
Sasisekaran, J., Brady, A., & Stein, J. A. (2013). A preliminary investigation of phonological encoding skills in children who stutter. Journal of Fluency Disorders, 38(1), 45-58. https://doi.org/10.1016/j.jfludis.2012.12.003
Smith, A., & Weber, C. (2017). How stuttering develops: The multifactorial dynamic pathways theory. Journal of Speech, Language, and Hearing Research, 60(9), 2483-2505. https://doi.org/10.1044/2017_JSLHR-S16-0343
Smith, A., Goffman, L., Sasisekaran, J., & Weber-Fox, C. (2012). Language and motor abilities of preschool children who stutter: Evidence from behavioral and kinematic indices of nonword repetition performance. Journal of Fluency Disorders, 37(4), 344-358. https://doi.org/10.1016/j.jfludis.2012.06.001
Spencer, C., & Weber-Fox, C. (2014). Preschool speech articulation and nonword repetition abilities may help predict eventual recovery or persistence of stuttering. Journal of Fluency Disorders, 41, 32-46. https://doi.org/10.1016/j.jfludis.2014.06.001
Sugathan, N., & Maruthy, S. (2019). Nonword repetition and identification skills in Kannada speaking schoolaged children who do and do not stutter. Journal of Fluency Disorders, 63, 1-52. https://doi.org/10.1016/j.jfludis.2019.105745
Türkoğlu, S., Çetin, F. H., Tanır, Y., & Karatoprak, S. (2019). Çalışma belleği ve nörogelişimsel hastalıklar [Working memory and neurodevelopmental disorders]. Turkish Journal of Child Adolescent Mental Health, 26(2), 52-62. https://doi.org/10.4274/tjcamh.galenos.2019.2018.11.034
Vahab, M., Shojaei, K., Ahmadi, A., & Nasiri, M. (2014). Phonological working memory in 4-8 year-old Persian children who stutter. Journal of Rehabilitation Science and Research, 1(4), 92-96. https://doi.org/10.30476/JRSR.2014.41062
Weber‐Fox, C., Spruill, J. E., Spencer, R., & Smith, A. (2008). Atypical neural functions underlying phonological processing and silent rehearsal in children who stutter. Developmental Science, 11(2), 321-337. https://doi.org/10.1111/j.1467-7687.2008.00678.x
Wilhelm, O., Hildebrandt, A. H., & Oberauer, K. (2013). What is working memory capacity, and how can we measure it? Frontiers in Psychology, 4, 433-454. https://doi.org/10.3389/fpsyg.2013.00433
Yairi, E., & Seery, C. H. (2015). Stuttering: Foundations and clinical applications (4th ed.). Pearson.
Yairi, E., Ambrose, N. G., Paden, E. P., & Throneburg, R. N. (1996). Predictive factors of persistence and recovery: Pathways of childhood stuttering. Journal of Communication Disorders, 29(1), 51-77. https://doi.org/10.1016/0021-9924(95)00051-8
Yairi, E. H., & Ambrose, N. (1992). A longitudinal study of stuttering in children: A preliminary report. Journal of Speech and Hearing Research, 35(4), 755-760. https://doi.org/10.1044/jshr.3504.755
Yang, Y., Jia, F., Fox, P. T., Siok, W. T., & Tan, L. H. (2018). Abnormal neural response to phonological working memory demands in persistent developmental stuttering. Human Brain Mapping, 40(1), 214-225. https://doi.org/10.1002/hbm.24366