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Background Tactile adaptation is a phenomenon of the sensory system that results in temporal desensitization after an exposure to sustained or repetitive tactile stimuli. Previous studies reported psychophysical and physiological adaptation where perceived intensity and mechanoreceptive afferent signals exponentially decreased during tactile adaptation. Along with these studies, we hypothesized that somatosensory cortical activity in the human brain also exponentially decreased during tactile adaptation. The present neuroimaging study specifically investigated temporal changes in the human cortical responses to sustained pressure stimuli mediated by slow-adapting type I afferents. Methods We applied pressure stimulation for up to 15 s to the right index fingertip in 21 healthy participants and acquired functional magnetic resonance imaging (fMRI) data using a 3T MRI system. We analyzed cortical responses in terms of the degrees of cortical activation and inter-regional connectivity during sustained pressure stimulation. Results Our results revealed that the degrees of activation in the contralateral primary and secondary somatosensory cortices exponentially decreased over time and that intra- and inter-hemispheric inter-regional functional connectivity over the regions associated with tactile perception also linearly decreased or increased over time, during pressure stimulation. Conclusion These results indicate that cortical activity dynamically adapts to sustained pressure stimulation mediated by SA-I afferents, involving changes in the degrees of activation on the cortical regions for tactile perception as well as in inter-regional functional connectivity among them. We speculate that these adaptive cortical activity may represent an efficient cortical processing of tactile information.

Education for those who are visually impaired usually relies on modified materials and unique teaching methods. Nonetheless, the advent of Extended Reality marks a considerable change by providing immersive and interactive experiences that can surpass the challenges encountered in conventional learning due to visual impairments. This study aims to systematically review and analyse the existing literature on the use of extended realities in the education of individuals with visual impairment. This systematic review followed the Preferred Reporting Items for Systematic Reviews (PRISMA) statement as a formal systematic review guideline for data collection to ensure the quality and replicability of the revision process. Data were obtained from research studies over the period 2013–2023. The analysis included a total of 71 papers from Science Direct, ERIC, JSTOR, Taylor & Francis Online, and Scopus databases. The results show that Europe had the most publications on these topics during the past decade and that most papers were focused on higher education. Additionally, virtual reality was the most investigated topic. The findings indicate that extended reality has the potential to promote inclusion for the visually impaired in educational settings and provide them with enhanced educational experiences in many educational disciplines.

Introduction Knowing how to gather information from graphics and to use that information to solve mathematics problems is an important skill. Prior research indicates that many students with visual impairments face considerable challenges when attempting to locate information in math graphics. Little is known about how teachers of students with visual impairments support their students in acquiring graphics skills. Methods Eleven teachers of visually impaired students participated in focus groups. Sessions were audio-recorded and transcribed. Themes were identified. Results The teachers described the importance of individualizing instruction for the student, teaching a systematic approach, and ensuring that graphics are clear to them. Discussion From an early age, visually impaired students need explicit instruction in how to access information in graphics. The use of prescribed low vision devices, manipulatives, and systematic instruction are integral to student success, as are the design and production of clear and accurate graphics. Implications for practitioners Teachers of visually impaired students utilize a variety of strategies to support students in accessing information in graphics. A curriculum and guidelines to assist them in supporting a wide range of learners would be valuable to the field of vision loss.

Additive manufacturing (AM), also known as 3D printing, is a promising tool to produce assistive technology. For instance, individuals with deafblindness (concurrent vision and hearing loss) could benefit from tactile AM-based products as touch may be their main gateway to access information. This study thus aimed to synthesize evidence on the current and potential practices involving AM in the context of deafblindness rehabilitation and to inform healthcare professionals and family caregivers on how AM can improve functioning and quality of life. A comprehensive literature search of ten databases (PsycINFO, MEDLINE, Global Health, PubMed, CINAHL, EMBASE, ERIC, Web of Science, Engineering Village, and Scopus) was performed to identify sources focusing on the use of AM toward rehabilitation goals of individuals with deafblindness. Nine of 1,397 studies met the inclusion criteria. The findings reveal that AM can counter barriers to full accessibility by enabling professionals to produce customized adapted material and communication devices, thus assisting individuals with deafblindness in communication, mobility, and learning. However, this review highlights a need for more AM research, resources, and training: interdisciplinary collaborations with AM specialists thus appear essential in improving rehabilitation services with AM.

Introduction Technological advances have introduced three-dimensional (3-D) printing as an option for creating tactile maps for people with visual impairments (that is, those who are blind or have low vision), diversifying the types of map products that are available. At the same time, it presents a challenge to map makers to implement designs across multiple production methods. We evaluated map symbols to determine their discriminability across three different materials: microcapsule paper, 3-D printer plastic, and embossed paper. Methods In a single session lasting less than 90 minutes, participants completed a matching task and provided informal feedback regarding their preferences. We measured speed and accuracy to establish discriminability of map symbols on each of the materials. Eighteen participants were recruited from a referred sample among attendees at the American Council of the Blind annual convention in 2013. Results Response times were significantly different across the three materials (p < 0.001). Without sacrificing accuracy, response times were faster for the 3-D printed graphics than for either the microcapsule paper (p < 0.001) or the embossed paper (p < 0.001). User preference was divided across the three materials. Some people disliked the “sharp” corners of the 3-D printed symbols, while others preferred their “crisp” edges. Discussion Our results demonstrate faster discriminability of a set of tactile symbols produced on a 3-D printer compared to those same symbols printed on microcapsule paper, the material for which the symbols were originally designed. Participant feedback reflected preferences both in favor of and against reading symbols produced on the 3-D printer. Implications for practitioners This article discusses the functional equivalence of tactile symbols produced across multiple production technologies. It addresses two considerations when using 3-D printing to make tactile maps: preparing digital files for printing and the printing work flow. Digital files ready for printing on each of the three materials are available for download (Brittell, Lobben, & Lawrence 2016).

the purpose of this study was to examine whether visually impaired students can build educational robots and program them if they receive adapted materials and instructions with guided instruction from well-trained educators in the fields of inclusive STEM Classrooms. Discussion of the technologies and our experimental approach is presented in this paper and validated through the continued successful effort with visually impaired students for two years of the program and specialists in the field of visual impairment and STEAM, we also validated our approach by performing experimental classes for students with different visual impairments and ages. The results indicated that the approach used by BASAER team was successful in enabling the blind and visually impaired students to build and program educational robotics and to participate effectively in national and international STEAM programs and competitions, with some limitations and Challenges encountered and explored during this research. The results from this study will be used to suggest a fully adapted system to support full inclusion for blind and visually impaired students in educational robots in STEAM context and to promote the adoption of this study and similar studies toward Inclusive STEM Classrooms.

Along with the expansion of education and laying the foundations of self-sufficiency for all members of society, the visually impaired students continued their education with other students in various fields of higher education. In this process, the limitations caused by visual impairment and the limitations originating from the shortcomings of the environment other than the visually impaired individuals themselves lead to many difficulties, which must be minimised to receive quality education. The aim of the research is to interpret and evaluate the problems and suggest solutions to visually impaired university students and reveal their similar and different aspects and new inferences through a systematic review of qualitative research findings between the years 2000 and 2021, using a meta-synthesis method. The results suggest that accessing campus from residence, accessing information, using technology and virtual materials on campus, social and educational attitudes, educational conditions, and assessment results cause different difficulties for visually impaired university students. Issuing legal regulations, improving the performance level of the visually impaired individuals in orientation and mobility, providing professional staff training, and procuring trained live readers or screen readers, hearing aids, touching aids, and helpers, as well as providing sufficient time for analysing tactile materials such as Braille and carefully answering the questions, are all recommended to solve the rising difficulties.

The \"Next Generation Science Standards\" (NGSS) stress the need for all students to receive excellent science instruction--including those with disabilities--based upon disciplinary core ideas, crosscutting concepts, and science and engineering practices (NGSS Lead States 2013). Further, the NGSS emphasize reducing disparities in student achievement across all groups (Miller and Januszyk 2014). Also central to the NGSS is the notion that science should be taught via inquiry-based methods, a strategy proven effective for all students, but particularly effective for those with visual impairments (Koehler 2017). In addition, for students with vision impairments, accommodations and modified equipment are necessary for their full participation in inquiry-based instruction (Wild and Koehler 2017). Most science teachers have no training in teaching visually impaired students and are unaware of available modified lab equipment or specialized accommodations for such students. Further, the literature is bereft of studies surrounding modifications for visually impaired students in high school science courses (Koehler and Wild 2019), thus a search for helpful textual information may prove fruitless. However, many studies exist surrounding accommodations for the visually impaired in other subject areas, and many of these ideas can be adapted for the high school science student.

Introduction Data were collected from youths with visual impairment about their experiences with tactile graphics and braille materials used in mathematics and science classes. Methods Youths answered questions and explored four tactile graphics made using different production methods. They located specific information on each graphic and shared their thoughts about the quality of the graphics. Results Twelve youths in 6th to 12th grades participated. Almost all participants reported typically receiving braille materials and using tactile graphics in their mathematics and science classes. Participants varied in their accuracy in locating specific information in four tactile graphics. They all reported that what made a tactile graphic “good” was clarity of information. Discussion The majority of the youths reported that occasionally they do not have access to mathematics and science materials at the same time as their peers. Some seemed concerned by the lack of materials, and others did not. The lack of materials may be problematic, since some of the students reported completing the assignments later or not at all. Youths overwhelmingly reported a need to have tactually distinctive elements in graphics. Implications for practitioners Professionals should consult youths when preparing materials for them for use in mathematics and science classes. Additionally, youths who are tactile readers need direct instruction in how to measure objects as well as how to locate specific information in a variety of graphics prepared using different production methods.