Visual–spatial training efficacy in children affected by migraine without aura: a multicenter study
Received 13 August 2016
Accepted for publication 29 December 2016
Published 27 January 2017 Volume 2017:13 Pages 253—258
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 2
Editor who approved publication: Dr Roger Pinder
Francesco Precenzano,1,* Maria Ruberto,2,* Lucia Parisi,3 Margherita Salerno,4 Agata Maltese,3 Beatrice Gallai,5 Rosa Marotta,6 Serena Marianna Lavano,7 Francesco Lavano,6 Michele Roccella3
1Clinic of Child and Adolescent Neuropsychiatry, Headache Center for Children and Adolescent. Department of Mental and Physical Health and Preventive Medicine, Università degli Studi della Campania Luigi Vanvitelli, 2Department of Medical-Surgical and Dental Specialties, Università degli Studi della Campania Luigi Vanvitelli, Naples, 3Department of Psychological, Pedagogical and Educational Sciences, 4Sciences for Mother and Child Health Promotion, University of Palermo, Palermo, 5Department of Surgical and Biomedical Sciences, University of Perugia, Perugia, 6Department of Medical and Surgery Sciences, 7Department of Health Sciences, University “Magna Graecia”, Catanzaro, Italy
*These authors contributed equally to this work
Abstract: Routinely in the clinical practice, children affected by migraine without aura (MwA) tend to exhibit severe and persistent difficulties within cognitive processes such as attention, memory, and visual–motor integration (VMI) skills. The aim of this study was to assess the visual–spatial and visual–motor abilities among a sample of children with MwA and the effects of a specific computerized training. The study population was composed of 84 patients affected by MwA (39 girls and 45 boys; mean age: 8.91±2.46 years), and they were randomly divided into two groups (group A and group B) comparable for age (P=0.581), gender (P=0.826), socioeconomic status (SES), migraine frequency (P=0.415), and intensity (P=0.323). At baseline (T0), the two groups were comparable for movement assessment battery for children (M-ABC) and VMI performances. After 6 months of treatment (T1), group A showed lower scores in the dexterity item of M-ABC test (P<0.001) and higher scores in M-ABC global performance centile (P<0.001) and total (P<0.001), visual (P=0.017), and motor (P<0.001) tasks of VMI test than group B. Moreover, at T1, group A showed higher scores in total (P<0.001) and motor (P<0.001) tasks of VMI test and in M-ABC global performance centile (P<0.001) and lower scores in the dexterity item of M-ABC test (P<0.001) than at T0. Group B showed, at T1, performances comparable to T0 for all evaluations. As reported by recent studies about alteration MwA among children in motor abilities, our study confirmed these difficulties and the efficacy of a specific software training, suggesting a new rehabilitative proposal in childhood.
Keywords: migraine without aura, visual–motor integration, visual–motor training skills
According to the International Classification of Headache Disorders, third version (ICHD-3), migraine has been defined as a common disabling primary headache disorder as ranked in the Global Burden of Disease Survey 2010 that identified migraine as one of the most prevalent disorders and the seventh highest specific cause of disability worldwide.1,2 Particularly, in pediatric age, migraine without aura (MwA) impacts different life aspects such as cognition, sleep habits, metabolic regulation, sociality, parenting, and attachment styles3–19 and seems to be more frequent than estimated, with a 1-year prevalence of 9.1% in children20 and up to 36% among adolescents.21
Recent studies have shown that in addition to the difficulties in performing daily activities, children and adolescents with migraine tend to present typical cognitive and behavioral changes during the attack and various levels of impairment between the attacks.22 Typically, a significant reduction in information speed processing has been reported in migraine sufferers that has also impaired visual–spatial memory, in verbal performances and attentive skills.23 These difficulties seem to be related to deficits in strategic and organizational aspects of learning processing. On the other hand, migraineurs have also found differences in visual cortical processing compared to healthy subjects.24 In particular, the ability to identify the overall direction of motion seems impaired, pinpointing that movement problems frequent in children and adolescents with MwA appear to be purely perceptual origin.25 Moreover, Esposito et al11 reported the association between poor motor coordination and MwA in children suggesting a role of impairment in perceptual organization abilities of children with MwA as the cause for motor coordination and visual–motor integration (VMI) impairment of these subjects.26 In this context, we previously proposed a new rehabilitation approach to these conditions in children affected by MwA,27 suggesting a positive role of exergames in motor coordination improvement, although only partial improvement in VMI abilities has been obtained.
The aim of the this study was to assess the effect of a specific software for visual–spatial training on VMI abilities in children affected by MwA.
The study population was composed of 84 patients affected by MwA (39 girls and 45 boys; mean age: 8.91±2.46 years), consecutively referred to the tertiary level Center for Childhood Headache of the Department of Child and Adolescent Neuropsychiatry, Università degli Studi della Campania Luigi Vanvitelli, University of Palermo, University of Perugia, and University of Catanzaro.
MwA diagnosis was performed according to the ICHD-3 criteria.1
Exclusion criteria were the following: prematurity and/or lower gestation (birth weight),28,29 mental retardation (IQ <70), borderline intellectual functioning (71< IQ <85),30,31 genetic syndromes (eg, down syndrome, Prader–Willi syndrome, and fragile X syndrome),32–34 hypothyroidism,35 psychiatric disorders (schizophrenia, mood disorders, and attention-deficit hyperactivity disorder [ADHD]),36 movement disorders, neuromuscular disorders, epilepsy,37–39 and obesity.40–42
All the subjects were Caucasian. As previously reported,43 a semi-structured interview (Hollingshead Four-Factor Index of Social Status)44 was conducted to collect information from the parents to assess the socioeconomic status (SES). The whole population underwent a clinical evaluation to assess the VMI and motor coordination skills at baseline (T0), and a headache diary was kept to collect the frequency of attacks and estimate migraine intensity according to a 5-point visual analog scale (VAS) evaluation.
After T0 evaluation, the study group was randomly divided into two groups (group A and group B) composed of 42 children in each group. Group A underwent a specific training course for 6 months using the software “Allenare le abilità visuo-spaziali”, commonly used for coaching visual–spatial skills in pediatric age.48 The training software was present in each participant’s study center, and all the recruited children followed the same protocol training, for three times per week and for a duration of 2 hours for each session. The patient treatment compliance for 100% and no adverse effects have been reported. For group B, only migraine preventive therapy was administered.
After 6 months of treatment (T1), the two groups underwent a clinical evaluation to compare the VMI and motor coordination skills.
Written informed consent was obtained from the parents of all children. Departmental ethics committees at the University of Palermo, Perugia and Catanzaro approved the study protocol (EudraCT number: 2015-001161-36).
Evaluation of motor coordination skills
The impairment of motor coordination performance related to age expectations was determined using the movement assessment battery for children (M-ABC) test. This test is frequently used in both clinical and research settings to assess children for motor coordination impairment and has high reliability and validity.49 In fact, it assesses fine and gross motor skills using three manual dexterity tasks, two ball skills tasks, and three balance tasks, each of which is scored on a 5-point scale. The raw score of each item is then converted to a score scale ranging from 0 to 5. The higher score indicates a less-than-adequate performance. Consequently, 0 reflects a complete success by the candidate on the task examined, while 5 reflects a failure in the execution of the task; in fact, failed (F), inappropriate (I), or refused (R) performances are transformed into 5. The sum of the eight scores of items corresponds to the total score of disability, ranging between 0 and 40, where a lower score is a result of implementing the best move. The content of the items differs depending on the age of the child examined, with increasing difficulty according to age, so that the battery is made up of four different types of activities considered to be made in relation to age (4–6 years, 7–8 years, 9–10 years, and 11–12 years). Each subject was assessed individually in ~20–40 min.49 The total impairment score was calculated from these individual tasks and used to generate a centile score compared to the standardization sample.
Evaluation of VMI skills
The fine motor coordination and the VMI were assessed by the Beery VMI task,50 a paper-and-pencil test, where children had to imitate or copy up to 27 geometric forms with increasing complexity using paper and pencil. Copying errors were marked if they reflected problems in fine motor coordination, rather than a pure visuospatial problem. The task is specifically designed for children and takes ~10 min. The Beery VMI scores were standardized for age and gender using normative data for the Italian general population.50 The centile scores were used for diagnosing the visual–motor abnormalities in our sample, and a value of ≤5 was considered for VMI impairment.
Software “Allenare le abilità visuo-spaziali”
For the treatment and strengthening of visual–spatial skills and improving the nonverbal activities, particularly useful in the context of learning, this software offers in the form of classic games and tests a series of exercises that stimulate visual perception, such as rotation of figures, the playback of a track, the reconstruction of an image or a photo, the orientation of visual configurations, and the spatial organization. These exercises are structured in three levels of difficulty and focus on the natural interest of the kids toward games and video games.
One can check the results of each player in each activity and set the options to adapt the program to the specific needs of navigation through a section dedicated to software management.48
For comparison between the two groups (group A and group B), paired t-test and, where appropriate, the Chi-square test were applied at T0 and T1.
Repeated-measures ANOVA was performed to compare the training effects within each group between T0 (baseline) and after 6 months of training (T1). P-values <0.05 were considered statistically significant.
For statistical analysis, the software “STATISTICA” (data analysis software system, version 6; StatSoft, Inc., 2001) was used.
The study population was composed of 84 patients affected by MwA (39 girls and 45 boys; mean age: 8.91±2.46 years), and they were randomly divided into two groups (group A and group B). In the two groups, there were no statistical differences in age (P=0.581), gender (P=0.826), SES (Table 1), migraine frequency (P=0.415), and intensity (P=0.323; Table 1).
Table 1 Comparison between the two study groups for demographic and migraine characteristics at T0
At T0, in the two groups, no statistical differences were found for M-ABC and VMI performances (Table 2).
Table 2 Comparison between the two study groups for VMI and M-ABC evaluations at T0
At T1, group A showed lower scores in the dexterity item of M-ABC test (P<0.001) and higher scores in M-ABC global performance centile (P<0.001) and total (P<0.001), visual (P=0.017), and motor (P<0.001) tasks of VMI test than group B (Table 3).
Moreover, at T1, group A showed higher scores in total (P<0.001) and motor (P<0.001) tasks of VMI test and in M-ABC global performance centile (P<0.001) and lower scores in the dexterity item of M-ABC test (P<0.001) than T0 (Table 4).
Group B showed, at T1, performances that were not statistically different with respect to T0 for all evaluations (Table 5).
Despite considerable progress in the study of the pathophysiology of headache, the effects of migraine in daily life are not yet fully understood, especially in the developmental age. Reports on cognitive functioning and visual–spatial abilities of children with migraine during the interictal phase are scarce and conflicting.
D’Andrea et al51 evaluated 20 children with MwA aged 7–11 years, not showing impairment in cognitive functioning, except for performances that were significantly compromised in the short- and long-term memory tasks.
Moreover, Calandre et al52 suggested that visuomotor processing speed may be considered the first sign of neuropsychological dysfunction in adults with migraine.
Conversely, Esposito et al26 conducted the first study on the association between poor motor coordination and MwA in children, using standardized tools, highlighting the higher prevalence of developmental coordination disorder and VMI impairment than controls.
Again, the same study reported a lower performance at the M-ABC test and in motor coordination task of VMI test in children with migraine than controls. In this light, our findings seem to show a positive impact on visual–spatial abilities of children with MwA, highlighting the role of overall management of unusual comorbidities of migraine.
On the other hand, as reported by Smits-Engelsman et al,53 repeating the same task in a controlled way using a standardized exergaming learning session seems to be a good way to examine motor learning skills. In this light, using virtual environments can be identified as beneficial to the efficiency and outcome of rehabilitative program in children with disabling medical conditions or lower level of physical fitness.27 Moreover, considering that children with migraine are identified as less inclined to engaging in physical activities,27 stimulating them through exergaming and/or software training (active computer games), which they enjoy, may be useful to promote their motor skills. On the other hand, many reports showed specific links between neuropsychological impairment and neuroimaging findings in migraine subjects in both adults and children. Schmitz et al54 demonstrated in adults with migraine a correlation between executive function impairment and density deficit in frontal and parietal gray matter. Moreover, Rocca et al55 showed in children affected by migraine atrophy in several gray matter regions of temporal and frontal lobes, including the cingulum, which are involved in executive functioning.
Alternatively, the executive functioning impairment and abnormalities in frontal regions may induce a reduction in perceptual organization abilities in children with MwA. Such changes may also affect motor coordination and visual–motor skills that seem to explain the results of this study with respect to the high prevalence of borderline motor skills in children with MwA.
The current study demonstrates the effectiveness of visuospatial training with specific software for the enhancement of visuospatial abilities in children with MwA, emphasizing the importance of precocious evaluation and management of all aspects of migraine comorbidities.
We thank Giovanni Messina, MD, PhD, Senior Researcher, working at Foggia University and Naples University for his intellectual contribution to the manuscript.
The authors report no conflicts of interest in this work.
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