380 research outputs found

    Objective estimation of visual Acuity with preferential looking

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    Purpose: A novel Preferential Looking (PL) procedure that uses quantitative analysis of visual scanning parameters is presented. Methods: Nine adult subjects were presented with a set of 14 visual stimuli (stimuli included 3 uniform grey fields and 1 field with black and white square wave gratings) spanning the range of spatial frequencies from 1.5 cycles/degree to 35.1 cycles/degree (1.3 logMAR to -0.07 logMAR). A remote gaze-tracking system was used to monitor the subject's eye movements and the relative fixation time (RFT) on the grating target. Subsequently, a four alternative forced-choice psychophysical test (4AFC) was performed with the same visual stimuli. Results: For visual stimuli for which the gratings' positions in the 4AFC test were identified correctly in 100% of the trials ("reliably discriminated"), the mean RFT was 72.5% ± 9.0%. For stimuli for which the spatial frequencies were higher than the subject's psychophysically determined VA threshold ("non-discriminated"), the mean RFT was 25.3% ± 8.5%. Using three repeated trials at each spatial frequency and a VA detector that is based on the conditional probability density functions of the RFT, the average VA was underestimated by 0.06 logMAR (range: 0.00 logMAR to 0.20 logMAR). Conclusions: In adults, automated quantitative analysis of visual scanning patterns can be used to estimate objectively and rapidly (210 seconds) VA with a mean error of 0.06 logMAR. The novel approach may form the basis for PL procedures that are more objective and accurate than the traditional clinical PL procedures

    To Feed or Let Eat! A Scale of Independence, Exploration, and Family to Measure Baby‐led Weaning as a Complementary Feeding Approach

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    Background This article reports the development and validation of a measure of parents\u27 use of baby-led weaning (BLW). BLW is a child-centred approach to complementary feeding where the infant is allowed to eat whole foods (rather than purees) and explore a variety of foods and textures. To date, parents\u27 use of BLW has been assessed using either single items or a wide variety of measures. Method In this study, exploratory and confirmatory factor analyses on independent samples supported three BLW subscales: independence, exploration, and family. Results The final 13-item scale showed adequate fit statistics and good reliability (χ2(62) = 115.02, p \u3c 0.001; CFI = 0.98; TLI = 0.98; RMSEA = 0.05; SRMR = 0.06; exploration a = 0.738; family a = 0.715; independence a = 0.809). In addition, the scale demonstrated good external validity and related in theoretically expected ways to an infant feeding-style measure and parent report of complementary feeding approach. This study was limited as it was mostly white parents, and the scale should be validated on a more diverse sample. Conclusions Future research can use this scale to examine if BLW relates to infant taste preferences, parenting styles, and child eating behaviours to improve child nutrition and health outcomes

    Physical Therapy and Occupational Therapy Well-Being

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    There is a lack of research in the professions of physical therapy and occupational therapy. To be more specific, the areas of stress and burnout have been topics of research within the healthcare field for medical physicians and nurses, but currently there is little research looking at stress and burnout for physical therapists and occupational therapists. (Anderson 2015; Berry 2019). The current study aims to look at the emotional connections between patients and professions, along with the related emotional stress experienced by these professionals. A survey was administered to 59 physical therapists and occupational therapists for the purpose to give data on the mental and physical stress experienced within these two professions. Major findings from this study revealed connections between the emotional and physical stress of bringing additional work home, connections between the years worked and desire to leave the profession, and the high emotional stress experienced within the profession. Therefore, establishing self-care plans and educational courses to better prepare graduate students within these two professions would be effective in reducing overall stress and burnout

    Maternal Feeding Goals and Restaurant Menu Choices for Young Children

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    Background: Childhood obesity remains a major public health issue. One recent effort to improve the obesogenic environment is mandating that restaurants provide calorie and other nutritional content on menus. Little is known about whether maternal feeding for young children is influenced by calorie disclosure on menus. This study examined (1) whether maternal feeding goals associate with mothers' food selections for their young children and (2) whether mothers change entrée and side selections for their children when calories/fat grams are listed on menus. Methods: One-hundred seventy mothers of children ages of 3?6 years participated in an online survey. Most participants identified as white (76.5%), with a mean BMI of 25.68 (standard deviation=5.94). Mothers were presented two menus (one with and one without calorie/fat information). Results: The goal of feeding for the child's familiarity with the food was significantly associated with mothers' selection of original side dish and entrées, with greater endorsement of this goal associated with choosing high-calorie/-fat sides and entrées. Feeding for natural content was associated with mothers' selection of original entrée, with greater endorsement of this goal associated with choosing low-calorie/-fat entrées. Significantly fewer mothers chose a higher-calorie entrée when there was menu labeling. Conclusions: Maternal feeding goals are associated with mothers' selection of entrée and side dishes on restaurant menus. Results from this study suggest that menu labeling of calories and fat grams may influence entrée choices by mothers. Targeting mothers' feeding goals and labeling restaurant menus may improve the diets of young children.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/140340/1/chi.2015.0014.pd

    Impact of Stress and Decision Fatigue on Parenting Practices Related to Food and Physical Activity During COVID‐19

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    Background The COVID-19 pandemic has resulted in substantial disruptions to daily functioning and lifestyle behaviours, with negative health consequences for youth. Parents play a large role in their children\u27s health behaviour; yet changes to parenting behaviours during the pandemic related to food and physical activity remain relatively unexplored. The present study is the first to our knowledge to examine specific changes in American parents\u27 parenting behaviours related to food and physical activity during COVID-19, and potential correlates of such changes, including perceived stress and decision fatigue. Methods A total of 140 parents (88.57% female; 88.41% White; 87.59% married; with one to five children) from middle to upper income households completed an online survey assessing demographics, perceived stress (Perceived Stress Scale), decision fatigue (Decision Fatigue Scale) and food and activity parenting behaviour changes during COVID-19. Results Overall, a greater proportion of parents engaged primarily in positive (57.14%) than negative (22.86%) parenting practices related to food and physical activity during the pandemic. Moderation analyses showed that the negative relation between perceived stress and positive parental behaviour changes was stronger at higher perceived increases in decision fatigue during the pandemic. Conclusions In the face of a major public health crisis, adaptive parental responses may emerge, but perceived stress may inhibit such behaviour change. Perceived stress and decision fatigue may represent important explanatory factors in parental health promoting behaviours during times of uncertainty and change

    Predicting children's fussiness with vegetables:the role of feeding practices

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    Vegetables are commonly rejected by children, making it is important to consider factors that are associated with children's fussiness with vegetables. The current study aimed to investigate whether fussiness with vegetables is associated with a number of factors including caregiver and child vegetable consumption; caregivers' general feeding practices; and caregivers' vegetable-specific feeding practices. Caregivers (N = 297) of preschool children completed questionnaire measures of their child's fussiness with vegetables, as well as several caregiver and child factors hypothesised to be associated with children's fussiness with vegetables. Findings indicate that children who are fussier with vegetables consume a smaller quantity of vegetables and that almost all have caregivers who eat a smaller quantity of vegetables. Children's fussiness with vegetables was not significantly related to any general feeding practices used by caregivers. However, children's fussiness with vegetables was significantly associated with the use of several vegetable specific feeding practices. Caregivers of fussier children used more encouragement/pressure to eat with vegetables (r = 0.14, p = .01), hid vegetables within other foods more often (r = 0.30, p = <.01), used more food rewards for vegetable consumption (r = 0.19, p <.01), more other rewards for vegetable consumption (r = 0.21, p < .01), and compromised more when feeding vegetables (r = 0.14, p = .01). These findings suggest that rather than caregivers' general feeding practices being related to children's fussiness with vegetables, the specific feeding practices used when vegetables are rejected are more significant. It may therefore be helpful to develop advice for caregivers about which feeding practices to avoid when faced with a child who is fussy about eating vegetables

    Fertility Preservation in Girls

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    Children that undergo treatment for cancer are at risk of suffering from subfertility or hormonal dysfunction due to the detrimental effects of radiotherapy and chemotherapeutic agents on the gonads. Cryopreservation of ovarian tissue prior to treatment offers the possibility of restoring gonadal function after resumption of therapy. Effective counseling and management of pediatric patients is crucial for preserving their future reproductive potential. The purpose of this article is to review recent literature and to revise recommendations we made in a 2007 article. Pediatric hemato-oncology, reproductive endocrinology, surgery, anesthesia and bioethics perspectives are discussed and integrated to propose guidelines for offering ovarian cryopreservation to premenarcheal girls with cancer

    Fundamental constructs in food parenting practices: a content map to guide future research

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    Although research shows that “food parenting practices” can impact children’s diet and eating habits, current understanding of the impact of specific practices has been limited by inconsistencies in terminology and definitions. This article represents a critical appraisal of food parenting practices, including clear terminology and definitions, by a working group of content experts. The result of this effort was the development of a content map for future research that presents 3 overarching, higher-order food parenting constructs – coercive control, structure, and autonomy support – as well as specific practice subconstructs. Coercive control includes restriction, pressure to eat, threats and bribes, and using food to control negative emotions. Structure includes rules and limits, limited/guided choices, monitoring, meal- and snacktime routines, modeling, food availability and accessibility, food preparation, and unstructured practices. Autonomy support includes nutrition education, child involvement, encouragement, praise, reasoning, and negotiation. Literature on each construct is reviewed, and directions for future research are offered. Clear terminology and definitions should facilitate cross-study comparisons and minimize conflicting findings resulting from previous discrepancies in construct operationalization

    Cortical Binocularity and Monocular Optokinetic Asymmetry in Early-Onset Esotropia

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    PURPOSE. TO investigate the correlation between directional asymmetry in ocular responses to monocularly viewed optokinetic stimuli (monocular optokinetic nystagmus, MOKN) and sensory fusion in infants and toddlers with early-onset esotropia. METHODS. Subjects were 14 infants and toddlers with early-onset esotropia (7-26 months old; median, 10 months), and 16 with no esotropia (6-22 months; median, 11 months) who provided control data. Monocular optokinetic nystagmus in response to a 30°/sec square-wave grating (0.25 cycles/ 0 ) was measured by electro-oculogram. Sensory fusion was assessed with visual evoked potentials (VEPs) to random-dot correlograms after correction of the strabismus angle with Fresnel prisms. RESULTS. All subjects with early-onset esotropia had MOKN with a faster slow-phase component for temporal-to-nasalward (TN) than nasal-to-temporalward (NT) motion. Ninety-three percent of subjects had MOKN asymmetry higher than the 95th percentile of the control group. Of subjects who cooperated with VEP fusion testing, 5 subjects with early-onset esotropia (45%) and 11 control subjects (92%) showed evidence of sensory fusion. CONCLUSIONS. Symmetrical MOKN did not develop in infants and toddlers with early-onset esotropia. This deficit existed in most infants who showed sensory-cortical fusion. These results are consistent with the belief that optokinetic nystagmus asymmetry may not be associated with a deficit in the cortical fusion facility, but rather with deficits in binocular pathways projecting to MOKN control centers. These deficits may be associated with abnormal processing subsequent to sensory fusion or with abnormal processing in motion pathways, which run parallel to sensory fusion pathways. (.Invest Ophthalmol Vis Sci. 1998;39:1352-1360 E arly-onset esotropia, also known as infantile esotropia, is a fairly common clinical disorder; estimates of prevalence have varied from 0.09% to 0.5%.&apos; Early-onset esotropia occurs within the first 6 months of life. 2 When visual development is normal, binocular single vision and stereopsis develop quickly during a critical period within the first few months of life. &quot; 9 The development of binocular single vision is accompanied by the development of oculomotor systems that function to keep images from the two eyes aligned. As part of this system, the vergence control system receives fusion and disparity information to align the binocular fixation point to different depth planes, 10 whereas the optokinetic control system receives fusion and disparity information to stabilize moving images of binocularly fused stimuli. 11 &quot; 13 This interaction undergoes considerable refine
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