Testing Stereopsis in Children

2022 ◽  
pp. 32-43
Author(s):  
Kristen L. Kerber

Stereopsis develops very early in life and is thought to be present in a normally developing child by six months of age. In order to develop stereopsis, multiple components of visual development must be intact including visual acuity and bifoveal fixation. Stereopsis is the most sensitive way to assess sensory fusion but can be unreliable in very young age groups due to difficulty understanding the test or instructions. It is best to choose an option with global stereopsis (high level cortical stereo), as local stereopsis may overestimate ability due to available monocular cues. Global is created using random dot stereograms (RDS) – computer-generated patterns to create a stereoscopic form, while local contains line stereograms which create horizontal retinal image disparity giving the perception of depth. Stereopsis can be affected by strabismus, amblyopia, and other binocular vision dysfunctions that interfere with visual efficiency (especially in school-age children). The chapter discusses the most commonly used clinical tests of global and local stereopsis.

2019 ◽  
Vol 4 (6) ◽  
pp. 1311-1315
Author(s):  
Sergey M. Kondrashov ◽  
John A. Tetnowski

Purpose The purpose of this study was to assess the perceptions of stuttering of school-age children who stutter and those of adults who stutter through the use of the same tools that could be commonly used by clinicians. Method Twenty-three participants across various ages and stuttering severity were administered both the Stuttering Severity Instrument–Fourth Edition (SSI-4; Riley, 2009 ) and the Wright & Ayre Stuttering Self-Rating Profile ( Wright & Ayre, 2000 ). Comparisons were made between severity of behavioral measures of stuttering made by the SSI-4 and by age (child/adult). Results Significant differences were obtained for the age comparison but not for the severity comparison. Results are explained in terms of the correlation between severity equivalents of the SSI-4 and the Wright & Ayre Stuttering Self-Rating Profile scores, with clinical implications justifying multi-aspect assessment. Conclusions Clinical implications indicate that self-perception and impact of stuttering must not be assumed and should be evaluated for individual participants. Research implications include further study with a larger subject pool and various levels of stuttering severity.


2017 ◽  
Author(s):  
Edward Goldstein

AbstractBackgroundThere is limited information about the role of different age groups, particularly subgroups of school-age children and younger adults in propagating influenza epidemics.MethodsFor a communicable disease outbreak, some subpopulations may play a disproportionate role during the ascent of the outbreak due to increased susceptibility and/or contact rates. Such subpopulations can be identified by considering the proportion that cases in a subpopulation represent among all cases in the population occurring before the epidemic peak (Bp), the corresponding proportion after the epidemic peak (Ap), to calculate the relative risk for a subpopulation, RR=Bp/Ap. We estimated RR for several age groups using data on reported influenza A cases in Germany between 2002-2017.ResultsChildren aged 14-17y had the highest RR estimates for 7 out of 15 influenza A epidemics in the data, including the 2009 pandemic, and the large 2016/17, 2008/09, and 2006/07 seasons. Children aged 10-13y had the highest RR estimates during 3 epidemics, including the large 2014/15 and 2004/05 seasons. Children aged 6-9y had the highest RR estimates during two epidemics, including the large 2012/13 season. Children aged 2-5y had the highest RR estimate during the moderate 2015/16 season; adults aged 18-24y had the highest RR estimate during the small 2005/06 season; adults aged 25-34y had the highest RR estimate during the large, 2002/03 season.ConclusionsOur results support the prominent role of all school-age children, particularly the oldest ones, in propagating influenza epidemics in the community. We note that national vaccination coverage levels among older school-age children were lower than among younger school-age children during the recent influenza seasons in the US, and influenza vaccination program in England has not been phased in yet for secondary school students.


2019 ◽  
Vol 16 (2) ◽  
pp. 152-153
Author(s):  
Luis Monteiro Rodrigues

The Nutrition and Food Sciences section includes two sequential papers regarding the anthropometric evaluation of pre-school and school age children from the Canarian Islands (Biomed & Biopharm Research, 2019;(16) 2; 154-164 DOI:10.19277/bbr.16.2.207) and from Azores (Biomed & Biopharm Research, 2019;(16) 2; 165-175 DOI:10.19277/bbr.16.2.208). These two cross-sectional studies focus the prevalence of normal weight, overweight, and obesity in those age groups, completing similar information published in the last issue of our journal in reference to the Madeiran Islands. A complete characterization of this condition is now achieved and described for the entire European Macaronesian islands, underlining the originality and interest of these papers.


Author(s):  
Alessandro Benati ◽  
Tanja Angelovska

AbstractThe present study investigates the effects of Processing Instruction on two different age groups and the role that cognitive task demands might play in the results generated by Processing Instruction. This study includes school-age children and adult native speakers of German learning English as a foreign language – a language combination not previously investigated within the Processing Instruction and individual differences research paradigm. The present study investigates directly whether two different age groups will benefit equally from Processing Instruction in altering their reliance on lexical temporal indicators and redirecting their attention to verb forms on Processing Instruction activities with different cognitive demands. The grammatical feature chosen for this study is the English past simple tense marking tested on both interpretation and production measures. The results from this study provide further evidence that the Processing Instruction is an effective instructional treatment in helping school-age children and adult L2 learners to make accurate form-meaning connections. The results from the first sentence-level interpretation task and the production task showed that Processing Instruction has positive and equal effects on both age groups (school-age learners and adults). The positive effects of instruction were maintained over the delayed post-test for both age groups who made similar gains on the immediate post-test. The results from the second (cognitively more complex) sentence-level interpretation task indicated that the adults made greater gains than school-age learners. However, both groups retained the positive effects of instruction over time. The difference in gains between the two age groups on the second sentence-level interpretation task can be explained in terms of cognitive processing load.


2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Judith R. Glynn ◽  
Paul A. H Moss

Abstract The COVID-19 pandemic has ignited interest in age-specific manifestations of infection but surprisingly little is known about relative severity of infectious disease between the extremes of age. In a systematic analysis we identified 142 datasets with information on severity of disease by age for 32 different infectious diseases, 19 viral and 13 bacterial. For almost all infections, school-age children have the least severe disease, and severity starts to rise long before old age. Indeed, for many infections even young adults have more severe disease than children, and dengue was the only infection that was most severe in school-age children. Together with data on vaccine response in children and young adults, the findings suggest peak immune function is reached around 5–14 years of age. Relative immune senescence may begin much earlier than assumed, before accelerating in older age groups. This has major implications for understanding resilience to infection, optimal vaccine scheduling, and appropriate health protection policies across the life course.


2019 ◽  
Vol 86 (2) ◽  
pp. 158-168
Author(s):  
Yu-Chen Lin ◽  
Yen-Li Chao ◽  
Chieh-Hsiang Hsu ◽  
Hsiao-Man Hsu ◽  
Po-Tsun Chen ◽  
...  

Background. Knowledge regarding the relationship between writing kinetics and the difference among writing tasks is limited. Purpose. This study examined the differences in handwriting performance when doing tasks with different levels of challenge from both temporal and kinetic perspectives among children in four different age groups. Method. The cross-sectional design introduced a force-acquisition pen to detect differences of pen grip and writing kinetics among 170 school-age children doing writing tasks at different difficulty levels. Data were obtained on the force information of the digits and pen tip and the kinetic parameters to examine the coordination-and-control mechanism between the digits and pen. Statistical analyzes were carried out to indicate the differences in writing performance among groups and tasks. Findings. Statistical differences in the pen-grip forces, force fluctuation, and force ratio between grip and pen-tip forces were found when performing different writing tasks and among different age groups. Implications. The study provides an alternative method to explore how writing performance among school-age children can vary according to the difficulty of the writing tasks.


2013 ◽  
Vol 4 (3) ◽  
pp. 74-76
Author(s):  
Lyubov Aleksandrovna Reshetnik ◽  
Yelena Olegovna Parfenova ◽  
Nadezhda Sergeyevna Krivickaya

Acetonemic vomiting is a syndromic condition that occurs in 4–7-year-old children more often than in the other age groups (t = 53,5; p(0,001). Girls are more exposed to acetonemia (t = 55,5; p(0,001), but its severity is more expressed in boys (the average duration of ketoacidosis for boys is 1,58 days, for girls — 1,17 days (t = 3,8; p(0,001). There is also more expressed ketoacidosis in pre-school children as compared with toddlers (t = 2,9; p(0,01) and compared with school-age children (t = 2,8; p(0,01). There are no reliable gender differences in ketoacidosis’ severity. Now the number of children hospitalized to Ivano-Matreninskaya state pediatric hospital with cyclic vomiting syndrome (CVS) has increased by 8 times in the last 10 years.


2020 ◽  
Vol 99 (7) ◽  
pp. 719-724
Author(s):  
Sergey N. Filimonov ◽  
Natalia V. Tapeshkina ◽  
Elena V. Koskina ◽  
Oksana P. Vlasova ◽  
Elena M. Sitnikova ◽  
...  

The purpose of this study was to evaluate the nutritional status of school-age children living in monotown.Material and methods. A computer test was used to assess nutrition, namely, the program of the analysis of the frequency of food consumption «Human nutrition analysis» differentiated by classes of education for schoolchildren aged 7-10 years (junior classes), 11-13 years (middle link of education) and 15-16 years (high school). The total sample size amounted to 612 schoolchildren. The comparative analysis of qualitative and quantitative indices of the composition of the diet was carried out based on existing regulations.Results. In all age groups of schoolchildren, an imbalance in the intake of macro- and micronutrients with diets was revealed, which was due to the imbalance of the food set. In the daily diet of children of 7-16 years, there was a fairly adequate caloric value, however, they were deficient in total protein (89.0-96.4%) and excessive in fat (100.4-124.3%) and carbohydrates (105.3-118.5% of physiological norms). The protein content of animal origin in the daily diets of all schoolchildren was below the norms of physiological needs and accounted for 88.0%, 85.4%, 90.7%, respectively. Diets were scarce in their content of meat and meat products (68.1-73.2% from the recommended level of consumption), fish and seafood (32.9-47.5%), eggs (62.3-82.4%), milk and dairy products (48.5%-72.1% per day), bakery products (79.4-93.6%), potatoes (62.9-71.0%). Actual food consumption and the intake of nutrients are influenced by the age of the schoolchild (the determination coefficient of 0.53).Conclusion. The development of programs to optimize the nutrition of schoolchildren should be carried out in the light of previously identified violations corresponding to the regional nature.


1998 ◽  
Vol 83 (3) ◽  
pp. 1075-1080 ◽  
Author(s):  
Ryuji Sato ◽  
Toru Hosokawa ◽  
Atsushi Tanaka ◽  
Norio Murai

The present study was designed to investigate characteristics by 38 school-age children in Grades 2, 4, and 6 of perseverative errors using the Wisconsin Card Sorting Test. Children's performance was measured as number of categories completed and perseverative errors, which were classified into perseverative errors of types described by Milner in 1963 and Nelson in 1976. Analysis indicated that the number of completed categories increased and perseverative errors decreased across age groups. Perseverative errors (Milner) were very similar in these grades and perseverative errors (Nelson) were significantly different between children in Grades 2 and 4. The results suggested a pattern of development for shifting inhibiting set.


2016 ◽  
Vol 2 (1) ◽  
pp. 00049-2015 ◽  
Author(s):  
Maria Pia Villa ◽  
Hanaa Shafiek ◽  
Melania Evangelisti ◽  
Jole Rabasco ◽  
Manuela Cecili ◽  
...  

The sleep clinical record (SCR) may be a valid method for detecting children with obstructive sleep apnoea (OSA). This study aimed to evaluate whether there were differences in SCR depending on age and to identify the possible risk factors for OSA development.We enrolled children with sleep disordered breathing between 2013 and 2015, and divided them according to age into preschool- and school-age groups. All patients underwent SCR and polysomnography.OSA was detected in 81.1% and 83.6% of preschool- and school-age groups, respectively. Obesity, malocclusions, nasal septal deviation and inferior turbinate hypertrophy were significantly more prevalent in school-age children (p<0.05); however, only tonsillar hypertrophy had significant hazard ratio (2.3) for OSA development. Saddle nose, nasal hypotonia, oral breathing and tonsillar hypertrophy were significantly more prevalent for development of OSA in preschoolers (p<0.03). The SCR score was significantly higher among preschool children than in school-age children (8.4±2.22versus7.9±2.6; p=0.044). Further, SCR score >6.5 had a sensitivity of 74% in predicting OSA in preschool children with positive predictive value of 86% (p=0.0001).Our study confirms the validity of the SCR as a screening tool for patient candidates for a PSG study for suspected OSA, in both school and preschool children.


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