Visual Motor Integration

Original Editor - Romy Hageman
Top Contributors - Romy Hageman and Kim Jackson

Introduction[edit | edit source]

The concept of visual-motor integration (VMI) is complex and influenced by various factors, including visual receptive functions, visual cognitive functions, fine motor ability, and the coordination of visual, cognitive and motor processes[1].

The VMI encompasses sensory, perceptual and motor components, signifying the coordination of visual perception with motor skills[2]. The sensory component involves processing visual stimuli in a specific environment, while the perceptual component interprets and understands the observed information[3]. Collectively, these components empower an individual to comprehend visual stimuli, and both elements are essential for functional vision. The visual perception is also the ability to copy geometrical shapes, letters, and images within a designated space[4]. This proficiency is deemed crucial for effective motor coordination. The motor component entails physical movements in response to the visual stimuli[5]. Efficient coordination between the visual system and the motor system becomes effective when the foundational skills of both visual and motor abilities are firmly established[6].

Background[edit | edit source]

Visual-Motor Integration Skills

The integration of visual and motor skills holds significance in the development of children. Children are not born with fully developed visual-motor integration skills; instead, these skills evolve from reflexes and gradually gain control and coordination as they age[7].

The developmental milestones for VMI commence at three months of age, marked by an infant's ability to visually track an object while lying on their back (supine position)[8]. The VMI is closely linked to various functional abilities and the capacity to engage in daily tasks[9]. VMI skills enable individuals to plan, monitor, and perform motor tasks, such as tying shoelaces, threading a needle, and catching or hitting a ball[10]. For instance, visual-motor integration plays a crucial role in the acquisition of handwriting skills[11][12].

Approximately 10% to 30% of school-aged children are estimated to encounter difficulties with handwriting[13].Various research has noted that visual-motor integration is a significant predictor of handwriting performance[1][11][14][15][16][17][18].This is especially in the early grades, as younger students often depend more on visual feedback and motor information to guide their movements when forming and replicating letters[19][20][21].

The relationship between the VMI and handwriting seem to diminish after the age of 5 years[22]. Inadequate visual-motor integration may lead to handwriting that is sluggish and lacks coordination in the process, resulting in large and illegible final output[23]. Beyond its impact on the development of handwriting, difficulties in visual-motor integration are likely to have repercussions on academic performance in areas such as reading, mathematics and overall academic performance[5][9][21][24][25][26][27][28][29][30][31][32][33][34].

There are multiple theories why the VMI may be a good indicator of children's academic development. One aspect to consider is that the skills assessed by measures of VMI, including understanding instructions, maintaining focused attention on a task, and handling and manipulation writing tools, share similarities with the skills crucial for success in academic settings[35]. More specifically, the progression of numerous crucial skills that contribute to academic development is directly impacted by visual-motor integration abilities[36]. This includes early writing proficiency and the ability to map x and y pairs onto the coordinate plane.

There is a suggestion that proficient VMI skills play a role in enhancing the acquisition of handwriting skills. This, in turn, diminishes the necessity to concentrate attention on the physical act of writing. As a result, the reduced attentional demands create free working memory resources that can be directed towards the written content[34][37]. VMI also plays an indirect role in extracurricular activities, sports, recreational performance, social and emotional skills[38][39]. Impairments in VMI skills are diverse, leading to negative consequences on both participation and self-concept[40][41].

Diagnosis[edit | edit source]

There are different diagnosis that may influence the visual-motor integration:

  • Children born preterm: several reports have shown that children born preterm may exhibit poor VMI and motor function[42][43][44][45][46][47][48], especially in preterm infants with retinopathy of prematurity[49].
  • Children with Cerebral Palsy (CP): several studies were at a consensus that CP negatively impacts VMI skills[50][51][52][53]. There is an increased risk for having VMI deficits due to dyspraxia and motor coordination limitations[54].
  • Children with Brachial Plexus Injury: several studies were at consensus that brachial plexus injury may have a negative impact on VMI skills[53][55][56]. The extent of impairment in Brachial Plexus Injury is associated with adverse effects on physical functioning, particularly affecting tasks related to VMI[57]. There is an increased risk for having VMI deficits due to dyspraxia and motor coordination limitations[54].
  • Children and adults with Autism Spectrum Disorder (ASD): studies are at consensus that ASD negatively impacts VMI skills[53][58][59][60][61][62][63]. There is an increased risk for having VMI deficits due to dyspraxia and motor coordination limitations[54].
  • Children with Attention Deficit Hyperactivity Disorder (ADHD): children with ADHD exhibited significantly lower visual-motor integration[64] [65].
  • Children with Developmental Coordination Disorder (DCD): children with DCD score lower compared to typically developing children[66][67] [68][69].
  • Astigmatic students: unaddressed astigmatism impacts the performance of visual motor and perceptual tasks. Individuals previously treated with corrective spectacles for astigmatism do no exhibit developmental deficits in visual motor or perceptual tasks when assessed with proper correction[70].
  • Children with Sickle Cell Disease: children with Sickle Cell Disease have impaired VMI skills[71].
  • Children with Human Immunodeficiency Virus (HIV): children with HIV are at risk for neurodevelopmental delay related to visual motor integration and visual perception[72] .
  • Children with congenital heart disease: visual-motor integration scores are lower for children with congenital heart disease than the norms[73].
  • Individuals with 3q29 deletion syndrome (3q29del): this deletion is associated with substantial deficits in visual-motor integration[74] .
  • Children with Prader Willi Syndrome: visual-motor integration is very poor in children with Prader Willi Syndrome[75].
  • Children with Learning Disabilities: children facing learning disabilities frequently exhibit deficiencies in visual-motor integration, including issues with spatial awareness, poor handwriting, challenges in coloring withing the lines and writing within the lines, drawing, using scissors, and copying designs[76] .

Gender[edit | edit source]

In general, gender might influence visual-motor integration skills in children; however, conclusive findings cannot be drawn at this time[77][38][78][79][80]. Notably, one study indicated that females exhibited superior VMI abilities compared to males[18], while another study suggested that males were at a higher risk for VMI deficits[81].

Age[edit | edit source]

All studies unanimously agreed that age had an impact on visual-motor integration scores[82][83][84][85][86][87]. There is a normal improvement associated with maturity[10][88][89][90][91].

Cross-cultural variations[edit | edit source]

Chinese children (aged 3-12) demonstrate significantly higher standard scores on VMI tests compared to children in the United States[87]. It is possible that early and intensive handwriting training in Chinese children might play a role in their exceptional performance in visual-motor integration. Their enhanced VMI skills could also be associated with the detailed geometric shapes and complex graphical nature of the Chinese characters[87].

Diagnostic instruments[edit | edit source]

The following instruments can be used to determine the visual-motor integration:

Therapy interventions[edit | edit source]

Early implementation of interventions targeting a child's visual-motor integration skills is crucial[97][98]. Addressing deficits in VMI skills before formal schooling begins is essential, as these deficits can impact a child's academic journey[27]. By practicing, enhancing, or remediating these skills early on, children can cope better with school-related challenges, preventing potential delays compared to their peers[99][100].

Interventions designed to enhance the VMI skills of children should incorporate activities and exercises that engage their visual senses[25]. Tasks involving visual stimuli, such as objects, encouraged children to actively engage with what they observed[101]. This facilitates the development of Gross Motor Skills through activities involving object manipulation, as well as enhancing the VMI skills. This is because children need to interpret their visual environment to execute appropriate motor responses while interacting with the objects[101].

  • Early interventions can improve VMI in general school populations[102] and in children born preterm[103].
  • Several studies suggest that occupational therapy intervention improves VMI skills in children with disabilities[104][105][106].
  • The utilization of visual perception exercises, whether motor-independent or motor-dependent, can serve as an effective intervention to enhance the visual-motor integration of children with ADHD[107] .
  • Engaging in visual perceptual interventions positively impacted the VMI skills and performance in daily activities for children with Cerebral Palsy[50][51][52] .
  • A graphomotor intervention program can significantly change children's visual-motor integration scores[108] .
  • Augmented reality (AR) can be useful for effectively improving visual-motor integration in children with developmental delays[109].
  • Specific visual-motor integration activities such as dot-to dot activities, near point copying and fair point copying, are effective in improving board copying for children with learning disabilities[76].
  • Intervention program based on the Beery VMI educational tool: My shape Book, can significantly improve the performance in visual-motor integration[98].

References[edit | edit source]

  1. 1.0 1.1 Dankert HL, Davies PL, Gavin WJ. Occupational therapy effects on visual motor skills in preschool children. American Journal of Occupational Therapy. 2003; 57(5): 542-549
  2. Afrika E, Van Deventer K. A motor skills programme to enhance visual and motor integration of selected pre-school learners. Early childhood Development and Care. 2016; 187(12): 1960-1970
  3. Cheatum BA, Hammond AA. Physical activities for improving children's learning and behaviour: A guide to sensory motor development, Human Kinetics. Champaign, IL. 2000
  4. Lane KA. Developing ocular motor and visual perceptual skills: An activity workbook. Slack Incorporated, Thorofare, NJ. 2005
  5. 5.0 5.1 Battaglia-Mayer A, Caminiti R. Parieto-Frontal networks for eye-hand coordination and movements. Handbook of Clinical Neurology. 2018; 151: 499-524
  6. Memis A, Ayvaz SD. The analysis of reading skills and visual perception levels of first grade Turkish students. Journal of Education and Training Studies. 2016; 4(8)
  7. Case-Smith J, O'Brien JC. Occupational therapy for children, 6edn., Elsevier-Mosby, St. Louis, MO, 2010.
  8. Scharf RJ, Scharf GJ, Stroustrup A. Developmental milestones. Pediatrics in Review. 2016; 37(1): 25-38
  9. 9.0 9.1 Marr D, Cermak S. Predicting handwriting performance of early elementary students with the developmental test of visual-motor integration. Perceptual and Motor Skills. 2002; 95(1): 661-669
  10. 10.0 10.1 Abou-El-Saad T. Afsah O, Baz H, Shaaban W. The relationship between visual-motor integration and handwriting skills in Arabic-speaking Egyptian children at the age of 4-6 years. Egyptian Journal of Otolaryngology. 2017; 33(4): 663-669
  11. 11.0 11.1 Volman MJM, van Schendel B, Jongmans MJ. Handwriting difficulties in primary school children: A search for underlying mechanisms. American Journal of Occupational Therapy. 2006; 60(4): 451-460
  12. Capellini SA, Giaconi C, Germano GD. Relation between visual motor integration and handwriting in students of elementary school. Psychology. 2017; 8(2): 258-270
  13. Karlsdottir R, Stefansson T. Problems in developing functional handwriting. Perceptual and Motor Skills. 2002; 94(2): 623-662
  14. Feder KP, Majnemer A. Handwriting development, competency, and intervention. Developmental Medicine & Child Neurology. 2007; 49(4): 312-317
  15. Taverna L, Tremolada M, Sabattini F. Drawing and Writing. Learning of Graphical Representational Systems in Early Childhood. In Proceedings of the 2nd International and Interdisciplinary Conference on Image and Imagination; Cicalo. Springer Nature: Cham, Switzerland, 2020; 216-229
  16. Daly CJ, Kelley GT, Krauss A. Relationship between visual-motor integration and handwriting skills of children in kindergarten: a modified replication study. American Journal of Occupational Therapy. 2003; 57(4): 459-62
  17. Chow S, Tseng M. Perceptual-motor function of school-aged children with slow handwriting speed. The American Journal of Occupational Therapy. 2000; 54: 83-88
  18. 18.0 18.1 Coallier M, Rouleau N, Bara F, Morin M. Visual-motor skills performance on the Beery-VMI: a study of Canadian kindergarten children. The Open Journal of Occupational Therapy. 2014; 2(2): 1-10
  19. Klein S, Guiltner V, Sollereder P, Cui Y. Relationships between fine-motor, visual-motor, and visual perception scores and handwriting legibility and speed. Physical & Occupation Therapy in Pediatrics. 2011; 31(1): 103-114
  20. Overvelde A, Hulstijn W. Handwriting development in grade 2 and grade 3 primary school children with normal, at risk, or dysgraphic characteristics. Research in Developmental Disabilities. 2011; 32(2): 540-548
  21. 21.0 21.1 Khatib L, Li Y, Geary DC, Popov V. Meta-analysis on the relation between visuomotor integration and academic achievement: Role of educational stage and disability. Educational Research Review. 2021; 35(2): 100412
  22. Pinto G, Camilloni C. The emergence of writing ability: Drawing and writing differentiating processes. Issues in Writing Research. 2012; 29-44
  23. Zajic M, Wilson S. Writing research involving children with autism spectrum disorder without a co-occurring intellectual disability: A systematic Review using a language domains and mediational systems framework. Research in Autism Spectrum Disorders. 2020; 70: 120-147
  24. Sortor JM, Kulp MT. Are the results of the Beery-Buktenica developmental test of visual-motor integration and its subtests related to achievement test scores? Optometry and Vision Science. 2003; 80(11): 758-763
  25. 25.0 25.1 Oberer N, Gashaj V, Roebers CM. Executive functions, visual-motor coordination, physical fitness and academic achievement: Longitudinal relations in typically developing children. Human Movement Science. 2018; 58: 69-79
  26. Banumathe K, Sharma P, Binu V, Guruprasad V. Relationship between visual motor integration and academic performance in elementary school children. Online Journal of Health and Allied Sciences. 2017; 16(1)
  27. 27.0 27.1 Desoete A, Pieters S, Roeyers H, VanderSwalmen R, Van Waelvelde H. Behind mathematical learning disabilities: what about visual perception and motor skills? Learning and Individual Differences. 2012; 22(4): 498-504
  28. Chen A, Bleything W, Lim Y. Relating vision status to academic achievement among year-2 school children in Malaysia. Optometry. 2011; 82(5): 267-273
  29. Pienaar AE, Barhorst R, Twisk JWR. Relationships between academic performance, SES school type and perceptual-motor skills in first grade South African learners: NW-CHILD study. Child: Care, Health and Development. 2013; 40(3): 370-378
  30. Longkamp M, Richards TL, Velay JL, Berninger VW. Neuroanatomy of handwriting and related reading and writing skills in adults and children with and without learning disabilities: French-american connections. Practiques. 2016; 171-172
  31. Coetzee D, Gerber B. Difference between visual-motor integration status of typically developed learners and learners with learning-related problems. South African Journal for Research in Sport, Physical Education and Recreation. 2018; 40(2): 41-52
  32. Pereira DM, de Cássia Tibério Araújo R, Braccialli LMP. Relationship analysis between visual-motor integration ability and academic performance. Journal of Human Growth and Development. 2011; 21(3)
  33. Chanpirom R, Lersilp S, Putthinoi S, Chaimaha N. Relationship between cognitive performance and visual motor integration in preschool children in a community: a Pilot Study. Journal of Occupational Therapy, Schools & Early Intervention. 2022; 15(3): 231-243
  34. 34.0 34.1 Cameron CE, Cottone EA, Murrah WM, Grissmer DW. How are motor skills linked to childrens' school performance and academic achievement? Child Development Perspectives. 2016; 10: 93-98
  35. Cameron CE, Brock LL, Hatfield BE, Cottone EA, Rubinstein E, LoCasale-Crouch J, Grissmer DW. Visuomotor integration and inhibitory control compensate for each other in school readiness. Developmental Psychology. 2015; 51(11): 1529-1543
  36. Dawson G, Watling R. Interventions to facilitate auditory, visual, and motor integration in autism: A review of the evidence. Journal of Autism and Developmental Disorder. 2000; 30(5): 415-421
  37. Carlson AG, Rowe E, Curby TW. Disentangling fine motor skills' relations to academic achievement: The relative contributions of visual-spatial integration and visual-motor coordination. The Journal of Genetic Psychology. 2013; 174(5): 514-533
  38. 38.0 38.1 Nicola K, Watter P. Visual-motor integration performance in children with severe specific language impairment. Child: Care, Health and Development. 2016; 42(5): 742-749
  39. Lim CY, Tan PC, Koh C, Koh E, Guo H, Yussof ND, See CQ, Tan T. Beery-Butenica Developmental Test of Visual-Motor Integration (Beery-VMI): Lessons from exploration of cultural variations in visual-motor integration performance of preschoolers. Child: Care, Health and Development. 2014; 41(2): 213-219
  40. Lahav O, Apter A, Ratzon NZ. Psychological adjustment and levels of self esteem in children with visual-motor integration difficulties influences the results of a randomized intervention trial. Research in Developmental Disabilities. 2013; 34(1): 56-64
  41. Sanghavi R, Kelkar R. Visual-motor integration and learning disabled children. Indian Journal of Occupational Therapy. 2005; 37(2): 33-38
  42. Pereira FL, Gaspardo CM. Neonatal pain and developmental outcomes in children born preterm: An updated systematic review. Psychology & Neuroscience. 2024; 17(1):1-15
  43. Geldof CJ, van Wassenaer AG, de Kieviet JF, Kok JH, Oosterlaan J. Visual perception and visual-motor integration in very preterm and/or very low birth weight children: a meta-analysis. Research in Developmental Disabilities. 2011; 33(2): 726-36
  44. Williams J, Lee KJ, Anderson PJ. Prevalence of motor-skill impairment in preterm children who do not develop cerebral palsy: a systematic review. Developmental Medicine & Child Neurology. 2009; 52(3): 232-7
  45. Van Braeckel KN, Taylor HG. Visuospatial and visuomotor deficits in preterm children: the involvement of cerebellar dysfunctioning. Developmental Medicine & Child Neurology. 2013; 55(4): 19-22
  46. Setänen S, Lehtonen L, Parkkola R, Matomäki J, Haataja L. The motor profile of preterm infants at 11 years of age. Pediatric Research. 2016; 80(3): 389-94
  47. Geldof CJA. Visual Imprints of Very Preterm Birth: Evidence for cerebral visual impairments in very preterm born children. PhD-Thesis- Research and graduation internal, Vrije Universiteit Amsterdam. 2015
  48. Dathe AK, Jaekel J, Franzel J, Hoehn T, Felderhoff-Mueser U, Huening BM. Visual Perception, Fine Motor, and Visual-Motor Skills in Very Preterm and Term-Born Children before School Entry-Observational Cohort Study. Children. 2020; 7: 276
  49. Zimmerman DL, Schned H, Unterasinger L, Kirchner L, Fuiko R, Olischar M, Klebermass-Schrehof K, Berger A, Weninger M, Giordano V. Impact of Retinopathy of Prematurity on Visual Motor Integration. Neonatology. 2023; 120: 317-324
  50. 50.0 50.1 Alwhaibi RM, Alsakhawi RS, ElKholi SM. Augmented biofeedback training with physical therapy improves visual-motor integration, visual perception, and motor coordination in children with spastic hemiplegic cerebral palsy: a randomised control trial. Physical & Occupational Therapy in Pediatrics. 2020; 40(2): 134-151
  51. 51.0 51.1 Alwhaibi RM, Alsakhawi, ElKholi SM. Effects of auditovisual feedback on eye-hand coordination in children with cerebral palsy. Research in Developmental Disabilities. 2020; 101: 103635
  52. 52.0 52.1 Cho M, Kim D, Yang Y. Effects of visual perceptual interventions in visual motor integration and activities of daily living performance of children with cerebral palsy. Journal of Physical Therapy Science. 2008; 27(2): 411-413
  53. 53.0 53.1 53.2 Bonifacci P. Children with low motor ability have lower visual-motor integration ability but unaffected perceptual skills. Human Movement Science. 2004; 23(2): 157-168
  54. 54.0 54.1 54.2 Carsone B, Green K, Torrence W, Henry B. Systematic Review of Visual Motor Integration in Children with Developmental Disabilities. Occupational Therapy International. 2021; 9
  55. van der Holst M, Steenbeek D, Pondaag W, Nelissen RGHH, Vliet Vlieland TPM. Neonatal Brachial Plexus Palsy in Children Aged 0 to 2.5 Years; Parent-Perceived Family Impact, Quality of Life, and Upper Extremity Functioning. Pediatric Neurology. 2016; 62: 34-42
  56. Bellows D, Bucevska M, Verchere C. Coordination and balance in children with birth-related brachial plexus injury: a preliminary study. Physiotherapy Canada. 2015; 67(2): 105-112
  57. Lazzeri de Medeiros D, Agistinho NB, Mochizuki L, Siriani de Oliveira A. Quality of life and upper limb function of children with neonatal brachial plexus palsy. Revista Paulista de Pediatria. 2020; 38: 2018304
  58. Dowd A, McGinley J, Taffe J, Rinehart N. Do planning and visual integration difficulties underpin motor dysfunction in autism? A kinematic study of young children with autism. Journal of Autism & Developmental Disorders. 2012; 42(8): 1539-1548
  59. Englund JA, Decker SL, Allen RA, Roberts AM. Common cognitive deficits in children with attention-deficit/hyperactivity disorder and Autism. Journal of Psychoeducational Assessment. 2014; 32(2): 95-106
  60. Green RR, Bigler ED, Froehlich A, Prigge MBD, Travers BG, Cariello A, Anderson JS, Zielinski BA, Alexander A, Lange N, Lainhart JE. Beery VMI performance in autism spectrum disorder. Child Neuropsychology. 2016; 22(7): 795-817
  61. Mayes S, Breaux R, Calhoun S, Frye S. High prevalence of dysgraphia in elementary through high school students with ADHD and Autism. Journal of Attention Disorders. 2017; 70: 120-147
  62. Miller M, Chukoskie L, Zinni M, Townsend J, Trauner D. Dyspraxia, motor function and visual-motor integration in autism. behavioral Brain Research. 2014; 269(4): 95-102
  63. Wadsworth HM, Maximo JO, Lemelman AR, Clayton K, Sivaraman S, Deshpande HD, Ver Hoef L, Kana RK. The Action Imitation network and motor imitation in children and adolescents with autism. Neuroscience. 2017; 343: 147-156
  64. Carames CN, Irwin LN, Kofler MJ. Is there a relation between visual motor integration and academic achievement in school-aged children with and without ADHD? Child Neuropsychology. 2022; 28(2): 224-243
  65. Farhangnia S, Hassanzadeh R, Ghorbani S. Handwriting Performance of Children with Attention Deficit Hyperactivity Disorder: The Role of Visual-Motor Integration. International Journal of Pediatrics. 2020; 8(11): 12317-326
  66. Prunty M, Barnett AL, Wilmut K, Plumb M. Visual perceptual and handwriting skills in children with Developmental Coordination Disorder. Human Movement Science. 2016; 49: 54-65
  67. Tsai C, Wilson P, Wu S. Role of visual-perception skills (non-motor) in children with developmental coordination disorder. Human Movement Science. 2008; 27(4): 649-664
  68. Sankar UG, Monisha R. Relationship between visual-motor integration and manual dexterity in children with developmental coordination disorder in Indian Context. International Journal of Pharmaceutical Research. 2020; 12(4): 3963
  69. Valverde A, Araújo RS, Magalhaes L, Cardoso A. Relationship between visual-motor integration and manual dexterity in children with developmental coordination disorder. Cadernos Brasileiros De Terapia Ocupacional. 2020; 28(3)
  70. Harvey EM, Twelker JD, Miller JM, Leonard-Green TK, Mohan KM, Davis AL, Campus I. Visual Motor and Perceptual Task Performance in Astigmatic Students. Journal of Ophthalmology. 2017; 7
  71. Newby RF, Epping A, Geiger JA, Miller MS, Scott JP. Visual Motor Integration in Children With Sickle Cell Disease. Journal of Pediatric Hematology/Oncology. 2018; 40(7): 495-498
  72. Odejayi R, Franzsen D, De Witt P. Visual motor integration delay in preschool children infected with HIV. South African Journal of Occupational Therapy. 2019; 49(3)
  73. Teixeria J, Caflisch J, Chaouch A, Beck I, Feldmann M, Polentarutti S, Balmer C, Latal B. Motor and visuomotor function in 10-year-old children with congenital heart disease: Association with behaviour. Cardiology in the Young. 2021; 32(8): 1-6
  74. Pollak RM, Burrel TL, Cubbels JF, Klaiman C, Murphy MM, Saulnier CA, Walker EF, White SP, Mulle JG. Visual-Motor Integration Deficits in 3q29 Deletion Syndrome. Journal of Autism and Developmental Disorders. 2023
  75. Lo ST, Collin PJL, Hokken-Koelega ACS. Visual-motor integration in children with Prader-Willi syndrome. Journal of Intellectual Disability Research. 2015; 59(9): 827-834
  76. 76.0 76.1 Kumar MA, Nagalakshmi P, Monisha V. Effect of Visual Motor Integration Activities to Improve Board Coyping for Children with Learning Disability. International Journal of All Research Education and Scientific Methods. 2021; 9(10)
  77. Cui Y, Zhy Y, Laukkanen H, Rabin J. Evaluation of visual-motor integration skills in preschool and elementary school-aged Chinese children. Journal of Behavioral Optometry. 2012; 23(5-6): 123-128
  78. Singh CK, Dhanda B, Shanwal P. Gender difference in motor and mental development in children: an impact of stimulating activities. The Antropologist. 2010; 12(2): 153-154
  79. Lotz L, Loxton H. Visual-Motor integration functioning in a South African middle childhood sample. Journal of Child and Adolescent Mental Health. 2005; 17(2): 63-67
  80. Lachance J, Mazzocco M. A longitudinal analysis of sex differences in math and spatial skills in primary school age children. Learning and individual Differences. 2006; 16(3): 195-216
  81. Memisevic H, Hadzic S. The relationship between visual-motor integration and articulation disorders in preschool children. Journal of Occupational Therapy, Schools, & Early Intervention. 2013; 6(1): 23-30
  82. Ercan Z, Ahmetoglu E, Aral N. Investigating the visual-motor integration skills of 60-72 month children from high and low Socio-Economic status as regard age factor. International Education Studies. 2011; 4(3): 100-104
  83. Visser M, Nel R, Jansen T, Kinmont L, Terblanché S, van Wyk J. Visual perception of five-year-old English-speaking children in Bloemfontein using the Beery VMI-6, DTVP-3 and TVPS-3. South African Journal of Occupational Therapy. 2017; 47(2): 17-26
  84. Coutinho F, Bosisio M, Brown E, Rishikof S, Skaf E, Zhang X, Perlman C, Kelly S, Freedin E, Dahan-Oliel N. Effectiveness of iPad apps on visual-motor skills among children with special needs between 4y0m-7y11m. Disability & Rehabilitation: Assistive Technology. 2017; 12(4): 402-410
  85. Fany Y, Wang J, Zhang Y, Qin J. The Relationship of Motor Coordination, Visual Perception, and Executive Function to the Development of 4-6-Year-Old Chinese Preschoolers' Visual Motor Integration Skills. BioMed Research International. 2017; 8
  86. Heiz J, Barisnikov K. Visual-motor integration, visual perception and motor coordination in a population with Williams syndrome and in typically developing children. Journal of Intellectual Disability Research. 2016; 60(10): 945-955
  87. 87.0 87.1 87.2 Ng M, Chui M, Lin L, Fong A, Chan D. Performance of the visual-motor integration of preschool children in Hong Kong. Hong Kong Journal of Occupational Therapy. 2015; 25(1): 7-14
  88. Coetzee D, Pienaar AE, Van Wyk Y. Longitudinal influences of socio-economic status on visual-motor integration: The North-West Child Healt, Integrated with Learning and Development study. South African Journal of Childhood Education. 2019; 9(1)
  89. Bezrukikh MM, Kreshchenki OY. Psychophysiological correlates of writing and reading difficulties in children of elementary school age. Human Physiology. 2004; 30(5): 521-525
  90. Decker SL, Englund JA, Carboni JA, Brooks JH. Cognitive and developmental influences in visual-motor integration skills in young children. American Psychological Association. 2011; 23(4): 1010-1016
  91. Tekok-Kilic A, Elmastas-Dikec B, Chan H. Evaluation of visual-motor integration functions in children between 6-15 years of age. Turkish Journal of Psychiatry. 2010; 21(2): 97-104
  92. Beery KE, Buktenica NA, Beery NA. The Beery-Buktenica Developmental Test of Visual-Motor Integration: Administration, scoring and teaching manual (6th ed.). Minneapolis, MN Pearson. 2010
  93. Hsu S, Lin H, Wu Y, Liao N, Yu W, Chiu E. Test-Retest Reliability, Criterion-Related Validity, and Ecological Validity of the Test of Visual-Motor Skills, Third Edition, in Kindergarten Children with Developmental Coordination Disorder. The American Journal of Occupational Therapy. 2024; 78(1): 7801205030
  94. Emam MM, Al-Attiyah AA, Alhuwilah A, Awed HS, Omara E. Cross-cultural Validation of the Full Range Test of Visual Motor Integration Used with Children in Four Arab Countries. Optometry and Vision Science. 2021; 98(6): 644-653
  95. Korkmaz M, Sapmaz-Yurtsever S, Kacar-Basaran S, Demiral N, Cabuk T. Bender-Gestalt II Test: Psychometric Properties with Global Scoring System of a Turkish Standardization Sample. Child Neuropsychology. 2023; 29(4): 607-627
  96. Brown T, Murdolo Y. The Developmental Test of Visual Perception - Third Edition (DTVP-3): A Review, Critique, and Practice Implications. Journal of Occupational Therapy, Schools & Early Intervention. 2015; 8(4): 336-354
  97. Whiteley HE, Smith CD, Hutchinson J. Empowering early years workers to identify and target areas of difficulty in pre-school children. Early Years. 2005; 25(2): 155-166
  98. 98.0 98.1 Papadopoulos A, Vasileiad I. Detection of difficulties and intervention programme for the improvement of visual-motor integration in preschoolers with special educational needs. Research Square. 2024
  99. Dunn M, Loxton H, Naidoo A. Correlations of scores on the Developmental Test of Visual-Motor Integration and Copying Test in a South African multiethnic preschool sample. Perceptual and Motor Skills. 2006; 103: 951-958
  100. Goodwin K. The effects of a gross motor intervention programme on perceptualmotor skills and academic readiness in preschool children. Stellenbosch University. 2015
  101. 101.0 101.1 Anderson K, Becker D, Duncan R, Lipscomb S, MacDonald M, McClelland M. Relations of pre-schooler's visual-motor and object manipulation skills with executive function and social behaviour. Research Quarterly for Exercise and Sport. 2016; 87(4): 396-407
  102. Ohl AM, Graze H, Weber K, Kenny S, Salvatore C, Wagreigh S. Effectiveness of a 10-week tier-1 response to intervention program in improving fine motor and visualmotor skills in general education kindergarten students. Am J Occup Ther. 2013; 67: 507-514
  103. van Hus JW, Jeukens-Visser M, Koldewijn K, Geldof CJA, Kok JH, Nollet F, Van Wassenaer-Leemhuis AG. Sustained developmental effects of the infant behavioral assessment and intervention program in very low birth weight infants at 5.5 years corrected age. The Journal of Pediatrics. 2013; 162: 1112-9
  104. Case-Smith J. Effects of occupational therapy services on fine motor and functional performance in preschool children. American Journal of Occupational Therapy. 2000; 54(4): 372-380
  105. Desai AS, Rege PV. Correlation between developmental test of visual motor integration (VMI) and handwriting in cerebral palsy children. Indian Journal of Occupational Therapy. 2005; 37(2): 27-32
  106. Tanner K, Schmidt E, Martin K, Bassi M. Interventions within the scope of occupational therapy practice to improve motor performance for children ages 0-5 years: a systematic review. American Journal of Occupational Therapy. 2020; 74(2): 7402180060p1
  107. Sherejini NA, Molanorouzi K, Vakili S. Comparison of the Effect of Motor Independent/Dependent Visual Perception Practice on Visual-Motor Activity Disorder. Journal of Medical Council. 2023; 41(2): 152-159
  108. Taverna L, Tremolada M, Tosetto B, Dozza L, Renata ZS. Impact of Psycho-Educational Activities on Visual-Motor Integration, Fine Motor Skills and Name Writing among First Graders: A Kinematic Pilot Study. Children. 2020; 7(4): 27
  109. Wuang Y, Chen Y, Chiu Y, Wang C, Chen C, Huang C, Wu T, Hsieh T, Ho W. Effectiveness of Kinesthetic Game-Based Training System in Children with Visual-Perceptual Dysfunction. IEEE Access. 2021; 9: 153838-153849