The Tactual Profile: Development of a procedure to assess the tactual functioning of children who are blind

Contains fulltext : 77264.pdf (publisher's version ) (Closed access)The Tactual Profile assesses tactual functioning of children with severe visual impairments between 0 and 16 years of age. The Tactual Profile consists of 430 items, measuring tactile skills required for performing everyday tasks at home and in school. Items are graded according to age level and divided into three domains: tactual sensory, tactual motor and tactual perceptual. The development of the instrument is described and the psychometric properties that were studied reported. Most items had an acceptable difficulty level, and test—retest reliability proved to be good. The analyses for the construct validity showed moderately high correlations between the Tactual Profile and intelligence tests. These correlations were higher for the haptic performance subtests than for the verbal tests. High correlations with other haptic tests were found. However, these associations disappeared after factoring out intelligence, possibly because current methods for examining tactual functioning are strongly affected by intelligence. A summary of work planned in further development of the procedure is provided

Finding friends online: Online activities by deaf students and their well-being

Contains fulltext : 125129.pdf (publisher's version ) (Open Access)Generally, deaf and hard of hearing (D/HH) children have fewer friends than hearing peers and their friendships are of a lower quality. The research hypothesis was that using the computer to communicate with new online friends through social network sites or playing games with offline friends is associated with D/HH friendship qualities, because it removes certain communication barriers D/HH face in offline communication settings. With online questionnaires the relation between computer use and online, mixed (offline friend who you also speak in online settings), and offline friendship quality of D/HH and hearing students (18–25 years) was compared in both the Netherlands (n = 100) and the United States (n = 122). In addition, the study examined whether the different friendship qualities were related to the participants' well-being. Results showed that, in general, D/HH students' friendship qualities and levels of well-being were similar to their hearing peers. The quality of the mixed friendships was positively related to well-being. Furthermore, the frequency of pc use with both online and offline friends was positively related to friendships qualities in both hearing and D/HH students. A combination of the online and offline friendship seems to be the most important friendship type for both hearing and D/HH students and it is worthwhile to encourage this friendship type.10 p

Interventions to improve functioning, participation, and quality of life in children with visual impairment: a systematic review

Visual impairment in childhood often has life-long implications. To aim for the highest levels of functioning, participation, and quality of life and to ensure children's well-being, children should be entitled to the most effective rehabilitation programs. We review evidence for the effectiveness of rehabilitation interventions for children with visual impairment to improve skills and behavior, thereby improving participation and quality of life as an ultimate goal. Of the 441 potentially relevant articles identified, 66 studies met our inclusion criteria (i.e., 28 randomized controlled trials, 18 nonrandomized controlled trials, and 20 before-after comparisons). The results suggest that sports camps, prescription and training in the use of low vision devices, and oral hygiene programs might be effective in improving functioning and elements of participation and quality of life in children with visual impairment. Other interventions showed mixed or negative results. The results should be interpreted with caution because of moderate to high risk of bias and suboptimal reporting. Heterogeneity of results and the use of over 50 different outcome measures prevented a meta-analysis. Future studies should focus on promising interventions for which effectiveness is still unclear (e.g., mobility, social skills), with adequately designed methodology

A review of intervention studies on teaching AAC to individuals who are deaf and blind

Item does not contain fulltextWe reviewed intervention studies on teaching augmentative and alternative communication (AAC) to deaf–blind individuals. Studies meeting pre-determined inclusion-exclusion criteria were identified through electronic databases and hand searching and were summarized in terms of: (a) participants, (b) AAC mode, (c) target skills, (d) intervention procedures, and (e) main findings. Certainty of evidence was assessed through critical appraisal of each study’s design and methodological rigor. Seventeen studies, comprising 103 participants, were identified. Most participants had combinations of developmental, physical, and sensory impairments. A range of AAC modes were taught, including textures, tangible objects, and line-drawn symbols. Basic requesting skills were the most common intervention targets and these were most often taught using well-established behavioral procedures (e.g., prompting, differential reinforcement). Positive outcomes were reported for 90% of participants, but the evidence for 11 of the 17 studies was inconclusive because of methodological weaknesses. Implications for clinical practice and future research are discussed

The use of exploratory procedures by blind and sighted adults and children

Contains fulltext : 121154.pdf (publisher's version ) (Open Access)The study examined exploratory procedures (EPs) of congenitally blind and sighted children and adults on a haptic match-to-sample task. The aim was to examine the influence of age, visual status, and familiarity on the use of EPs when people haptically examine the object properties of weight, size, exact shape, and texture. EPs in the first and last of four series of trials were compared. The results showed that all four groups chose the same dominant EP for examining the four different object properties, all of them in agreement with the ones found by Lederman and Klatzky (Cognitive Psychology 19:342–368, 1987). Children were found to use more EPs, rather than using only the most efficient EP, for the dimension under study. Overall, performance was affected more by age than by visual status, and repeating the task led to increased efficiency in all groups. To describe exploratory behaviors in more detail, actions were introduced. Actions are single or sequential hand movements occurring in parallel with the EPs or apart from the EPs. The use of actions explained, in part, individual variation among the participants.14 p

Pragmatic Abilities in Children with Congenital Visual Impairment: An Exploration of Non-literal Language and Advanced Theory of Mind Understanding

Contains fulltext : 102796.pdf (publisher's version ) (Closed access)Children with congenital visual impairment have been reported to be delayed in theory of mind development. So far, research focused on first-order theory of mind, and included mainly blind children, whereas the majority of visually impaired children is not totally blind. The present study set out to explore whether children with a broader range of congenital visual impairments have a delay in more advanced theory of mind understanding, in particular second-order theory of mind (i.e. awareness that other people have beliefs about beliefs) and non-literal language (e.g. irony or figure of speech). Twenty-four children with congenital visual impairment and 24 typically developing sighted children aged between 6 and 13 were included. All children were presented with a series of stories involving understanding of theory of mind and non-literal language. When compared with sighted children of similar age and verbal intelligence, performance of children with congenital visual impairment on advanced theory of mind and non-literal stories was alike. The ability to understand the motivations behind non-literal language was associated with age, verbal intelligence and theory of mind skills, but was not associated with visual ability