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Artykuły w czasopismach na temat „Blind individuals”

Autor: Grafiati

Data publikacji: 25 stycznia 2025

Data aktualizacji: 31 lipca 2025

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1

Nejati, V. "Selective attention and inhibitory control in acquired blind individuals." European Psychiatry 26, S2 (2011): 432. http://dx.doi.org/10.1016/s0924-9338(11)72139-3.

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Background and aimBlindness cause functional and structural change in brain. The aim of this study is evaluation and comparison of selective attention and inhibition in acquired blinds and matched sightedMethodForty five Acquired Blinds of war veteran and fifty six healthy volunteers participated in this cross sectional study. Auditory Stroop Test is used for evaluation of selective attention and inhibitory control. Independent T Test was used for comparing blind with sighted.ResultsFindings show significant difference between two groups so that sighted subjects have higher performance in accu

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Passini, R., J. Delisle, C. Langlois, and G. Proulx. "Wayfinding Information for Congenitally Blind Individuals." Journal of Visual Impairment & Blindness 82, no. 10 (1988): 425–29. http://dx.doi.org/10.1177/0145482x8808201008.

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The paper reports on a wayfinding study aimed at identifying the information needs of the congenitally totally blind population. A route-finding experiment in a complex architectural setting was undertaken with a group of 15 congenitally totally blind and a matched control group of 15 sighted subjects. The experiment showed that, compared to the sighted control group, the blind persons planned the journey in more detail, requiring for this purpose additional environmental information. During the journey, they formulated significantly more decisions and used significantly more units of informat

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Junaidy, Deny Willy, Budi Isdianto, Gregorius Prasetyo Adhitama, Kukuh Rizki Satriaji, and Michael J. Proulx. "Visual Thinking in Congenitally Blind Individuals." International Journal of Diversity in Education 20, no. 1 (2020): 35–48. http://dx.doi.org/10.18848/2327-0020/cgp/v20i01/35-48.

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Aubin, Sébrina, Julie A. E. Christensen, Poul Jennum, Tore Nielsen, Ron Kupers, and Maurice Ptito. "Preserved sleep microstructure in blind individuals." Sleep Medicine 42 (February 2018): 21–30. http://dx.doi.org/10.1016/j.sleep.2017.11.1135.

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Schinazi, Victor R., Tyler Thrash, and Daniel-Robert Chebat. "Spatial navigation by congenitally blind individuals." Wiley Interdisciplinary Reviews: Cognitive Science 7, no. 1 (2015): 37–58. http://dx.doi.org/10.1002/wcs.1375.

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Mahfujur, Rahman, Raishul Islam Md., and M. Atikul Islam S. "Smartly Controlled Cap for Blind Individuals." Journal of Sensor Research and Technologies 7, no. 1 (2025): 29–38. https://doi.org/10.5281/zenodo.14942588.

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<em>This research paper focuses on empowering blind individuals to navigate their surroundings independently. The proposed solution is a Smart Cap, which leverages an Ultrasonic Sensor, NE 555 IC, capacitors, resistors, and other electronic components to detect obstacles and provide auditory guidance. Specifically designed for the visually impaired community, the Smart Cap offers a distinctive approach to improving mobility and safety. Its innovative features include a compact design, user-friendly operation, and real-time obstacle detection, making it an invaluable tool for enhancing the qual

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PRAKASH, CHAUDHARI, and SUTHAR HEMENDRA. "AUDIOMETRY STUDY IN BLIND AND NORMAL SIGHTED INDIVIDUAL." International Journal of Basic and Applied Physiology 7, no. 1 (2018): 118–21. https://doi.org/10.5281/zenodo.4481626.

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Background and Objectives: According to Cross Modal Plasticity theory, the blind people in order to compensate their blindness use their other senses and as a result they develop their hearing, taste, touch and smell senses. Indeed, many studies have confirmed that blind persons have superior abilities for non-visual perceptual tasks, such as pitch-change direction discrimination verbal memory, speech discrimination sound localization or tactile discrimination. Methodology: The study was carried out in 50 healthy sighted volunteers and 50 congenital blind subjects. Audiometric testing was cond

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Finocchietti, Sara, Davide Esposito, and Monica Gori. "Monaural auditory spatial abilities in early blind individuals." i-Perception 14, no. 1 (2023): 204166952211496. http://dx.doi.org/10.1177/20416695221149638.

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Early blind individuals can localize single sound sources better than sighted participants, even under monaural conditions. Yet, in binaural listening, they struggle with understanding the distances between three different sounds. The latter ability has never been tested under monaural conditions. We investigated the performance of eight early blind and eight blindfolded healthy individuals in monaural and binaural listening during two audio-spatial tasks. In the localization task, a single sound was played in front of participants who needed to localize it properly. In the auditory bisection

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Jonauskaite, Domicele, Lucia Camenzind, C. Alejandro Parraga, et al. "Colour-emotion associations in individuals with red-green colour blindness." PeerJ 9 (April 7, 2021): e11180. http://dx.doi.org/10.7717/peerj.11180.

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Colours and emotions are associated in languages and traditions. Some of us may convey sadness by saying feeling blue or by wearing black clothes at funerals. The first example is a conceptual experience of colour and the second example is an immediate perceptual experience of colour. To investigate whether one or the other type of experience more strongly drives colour-emotion associations, we tested 64 congenitally red-green colour-blind men and 66 non-colour-blind men. All participants associated 12 colours, presented as terms or patches, with 20 emotion concepts, and rated intensities of t

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Lane, Connor, Shipra Kanjlia, Hilary Richardson, Anne Fulton, Akira Omaki, and Marina Bedny. "Reduced Left Lateralization of Language in Congenitally Blind Individuals." Journal of Cognitive Neuroscience 29, no. 1 (2017): 65–78. http://dx.doi.org/10.1162/jocn_a_01045.

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Language processing depends on a left-lateralized network of frontotemporal cortical regions. This network is remarkably consistent across individuals and cultures. However, there is also evidence that developmental factors, such as delayed exposure to language, can modify this network. Recently, it has been found that, in congenitally blind individuals, the typical frontotemporal language network expands to include parts of “visual” cortices. Here, we report that blindness is also associated with reduced left lateralization in frontotemporal language areas. We analyzed fMRI data from two samp

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Awad, Jasmine F., Woon Ju Park, and Ione Fine. "Enhanced auditory segregation in early blind individuals." Journal of Vision 19, no. 10 (2019): 167. http://dx.doi.org/10.1167/19.10.167.

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Graven, Torø. "How individuals who are blind locate targets." British Journal of Visual Impairment 36, no. 1 (2018): 57–74. http://dx.doi.org/10.1177/0264619617737122.

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How do individuals who are blind locate, for example, the ‘@’ in an email address, the black king on a chessboard or their own house on a map? To locate information in peri-personal (non-rotated) tabletop space is a two-phase process: Phase 1 is to detect and identify the target; Phase 2 is to discover its position. This study investigated the relationship between Phase 1 and Phase 2 of the location process. A total of 23 individuals who are blind participated. Their accuracy in Phase 2 was affected by what strategy they had adopted in Phase 1; their location time was not. Three location strat

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Yabe, Takao, and Kimitaka Kaga. "Sound lateralization test in adolescent blind individuals." NeuroReport 16, no. 9 (2005): 939–42. http://dx.doi.org/10.1097/00001756-200506210-00012.

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Rishabh, Baranwal, Gupta Rahul, Tripathi Smrati, and Tripathi Himanshu. "An Intelligent Walking Aid with a GSM Module for the Safety of the Elderly and the Blind." Journal of Advancement in Communication System 6, no. 2 (2023): 1–7. https://doi.org/10.5281/zenodo.7878246.

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<em>Independence can be achieved through developing a strategy for achieving desires, goals, and objectives in life. The paper describes support for blinds (i.e. blind walking stick) using Arduino and different types of sensors. It can be quite difficult for blind and elderly to live freely. Blind or visually impaired all around the world constantly need assistance from others. These individuals have to ask guidance to reach their desired locations. From several decades, the white walking stick became a well-known navigational tool for blind people, and endeavors have since been undertaken to

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Rosyidah, Anifatur, Subagya Subagya, and Supriyadi Supriyadi. "Concerns and Self-Confidence of Blind Individuals in Karanganyar." Jurnal Penelitian dan Pengembangan Pendidikan Luar Biasa 11, no. 1 (2024): 29. https://doi.org/10.17977/um029v11i12024p29-34.

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This study aims to determine the relationship between worry and self-confidence of blind individuals at Yayasan Rumah Hebat Karanganyar. This study is a quantitative correlational study. The subjects of this study were 30 blind individuals who are members of Yayasan Rumah Hebat Fatonah aged 16-42 years. The sampling technique used was non-probability sampling with saturated sampling. The data collection technique in this study used two Likert scale instruments consisting of worry and self-confidence questionnaires. The questionnaire used to measure the level of worry of blind individuals was t

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Nakajima, Sawako, Naoyuki Okochi, Naoko Iizumi, Motohiko Tsuru, Kazutaka Mitobe, and Tetsujiro Yamagami. "The Possibility and Challenges for Deaf-Blind Individuals to Enjoy Films in Theater." Journal of Advanced Computational Intelligence and Intelligent Informatics 21, no. 2 (2017): 350–58. http://dx.doi.org/10.20965/jaciii.2017.p0350.

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In recent times, the use of subtitles and audio descriptions in movies for individuals with either hearing or visual impairment and the need to develop systems to provide these have been realized. However, even the need and possibility for deaf-blind individuals to enjoy movies have not been discussed yet. This study created an environment for deaf-blind individuals to “watch” a film, and conducted a screening of feature-length films with subtitles and audio descriptions. Interviews of 26 deaf-blind individuals indicated that 56% had watched films in a theater after becoming deaf-blind and bef

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Iversen, Katrine D., Maurice Ptito, Per Møller, and Ron Kupers. "Enhanced Chemosensory Detection of Negative Emotions in Congenital Blindness." Neural Plasticity 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/469750.

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It is generally acknowledged that congenitally blind individuals develop superior sensory abilities in order to compensate for their lack of vision. Substantial research has been done on somatosensory and auditory sensory information processing of the blind. However, relatively little information is available about compensatory plasticity in the olfactory domain. Although previous studies indicate that blind individuals have superior olfactory abilities, no studies so far have investigated their sense of smell in relation to social and affective communication. The current study compares congen

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Dr., C. N. Prabhavathi. "Image Processing and Bone Conduction for Deaf and Blind People." International Journal of Innovative Science and Research Technology 7, no. 5 (2022): 1458–62. https://doi.org/10.5281/zenodo.6760014.

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When hearing and sight fail, the human need for communication continues to remain intact. Deafblindness is a unique disability that combines varying degrees of both hearing and visual impairment. Individuals who are deaf-blind experience extreme challenges with communication and mobility. Over time and with the advancement in technology, a variety of communication technologies are available for deaf-blind individuals. Despite the available communication technology for deaf- blind individuals and the advancement in the field of Image Processing, we still lack a system/device to help deaf-blind

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Fernandez, Jane Motas, Armie Valencia, Villano Daniel, and Delbert Carlos D. Cunanan. "Assistive Eyewear: Arduino Powered Eyeglasses for Blind Individuals." IC-ITECHS 5, no. 1 (2024): 316–22. https://doi.org/10.32664/ic-itechs.v5i1.1671.

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The quality of life for individuals with visual impairments has been significantly enhanced by assistive technologies. This paper introduces a new solution called Arduino Powered Eyeglasses (APE) for Blind Individuals tailored specifically for blind individuals. APE integrates sophisticated sensors, microcontrollers, and audio feedback systems into a wearable device, enhancing spatial awareness and navigation capabilities. Utilizing ultrasonic sensors, the system detects obstacles in the user's path and delivers real-time audio feedback through a buzzer embedded in the eyeglasses frame. Furthe

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Jednoróg*, Katarzyna, and Anna Grabowska. "Behavioral manifestations of brain plasticity in blind and low-vision individuals." Acta Neurobiologiae Experimentalis 68, no. 1 (2008): 83–90. http://dx.doi.org/10.55782/ane-2008-1675.

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Tactile sensitivity enhancement (TSE) observed in blind people is probably a result of intensified tactile training. Although many researchers consider TSE in the blind to be an example of use-dependent plasticity, it is unclear whether the effects of training (Braille reading) are specific, i.e. restricted to the trained function and hand, or if they are more general. To examine this issue further, blind Braille readers, low-vision subjects (Braille readers and non-Braille readers) and sighted controls were tested in two tasks: a texture task resembling the Braille system and a dissimilar gro

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Sorokowska, Agnieszka. "Olfactory Performance in a Large Sample of Early-Blind and Late-Blind Individuals." Chemical Senses 41, no. 8 (2016): 703–9. http://dx.doi.org/10.1093/chemse/bjw081.

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McDaniel, Troy, Diep Tran, Abhik Chowdhury, Bijan Fakhri, and Sethuraman Panchanathan. "Recognition of Tactile Facial Action Units by Individuals Who Are Blind and Sighted: A Comparative Study." Multimodal Technologies and Interaction 3, no. 2 (2019): 32. http://dx.doi.org/10.3390/mti3020032.

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Given that most cues exchanged during a social interaction are nonverbal (e.g., facial expressions, hand gestures, body language), individuals who are blind are at a social disadvantage compared to their sighted peers. Very little work has explored sensory augmentation in the context of social assistive aids for individuals who are blind. The purpose of this study is to explore the following questions related to visual-to-vibrotactile mapping of facial action units (the building blocks of facial expressions): (1) How well can individuals who are blind recognize tactile facial action units comp

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Bertonati, Giorgia, Maria Bianca Amadeo, Claudio Campus, and Monica Gori. "Auditory speed processing in sighted and blind individuals." PLOS ONE 16, no. 9 (2021): e0257676. http://dx.doi.org/10.1371/journal.pone.0257676.

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Multisensory experience is crucial for developing a coherent perception of the world. In this context, vision and audition are essential tools to scaffold spatial and temporal representations, respectively. Since speed encompasses both space and time, investigating this dimension in blindness allows deepening the relationship between sensory modalities and the two representation domains. In the present study, we hypothesized that visual deprivation influences the use of spatial and temporal cues underlying acoustic speed perception. To this end, ten early blind and ten blindfolded sighted part

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Paré, Samuel, Maxime Bleau, Ismaël Djerourou, Vincent Malotaux, Ron Kupers, and Maurice Ptito. "Spatial navigation with horizontally spatialized sounds in early and late blind individuals." PLOS ONE 16, no. 2 (2021): e0247448. http://dx.doi.org/10.1371/journal.pone.0247448.

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Blind individuals often report difficulties to navigate and to detect objects placed outside their peri-personal space. Although classical sensory substitution devices could be helpful in this respect, these devices often give a complex signal which requires intensive training to analyze. New devices that provide a less complex output signal are therefore needed. Here, we evaluate a smartphone-based sensory substitution device that offers navigation guidance based on strictly spatial cues in the form of horizontally spatialized sounds. The system uses multiple sensors to either detect obstacle

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Belanich, James, and Sheri Gelvar. "Adaptive technology for individuals who are deaf-blind." Journal of Vocational Rehabilitation 6, no. 2 (1996): 167–74. http://dx.doi.org/10.3233/jvr-1996-6208.

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Pieniak, Michal, Kinga Lachowicz‐Tabaczek, Maciej Karwowski, and Anna Oleszkiewicz. "Sensory compensation beliefs among blind and sighted individuals." Scandinavian Journal of Psychology 63, no. 1 (2021): 72–82. http://dx.doi.org/10.1111/sjop.12781.

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Bertonati, Giorgia, Maria Bianca Amadeo, Claudio Campus, and Monica Gori. "Auditory speed processing in sighted and blind individuals." Journal of Vision 21, no. 9 (2021): 2519. http://dx.doi.org/10.1167/jov.21.9.2519.

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Cattaneo, Zaira, Micaela Fantino, Juha Silvanto, Carla Tinti, and Tomaso Vecchi. "Blind individuals show pseudoneglect in bisecting numerical intervals." Attention, Perception, & Psychophysics 73, no. 4 (2011): 1021–28. http://dx.doi.org/10.3758/s13414-011-0094-x.

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Fleming, Piers, Linden J. Ball, Thomas C. Ormerod, and Alan F. Collins. "Analogue versus propositional representation in congenitally blind individuals." Psychonomic Bulletin & Review 13, no. 6 (2006): 1049–55. http://dx.doi.org/10.3758/bf03213924.

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Lerens, Elodie, Rodrigo Araneda, Laurent Renier, and Anne G. De Volder. "Improved Beat Asynchrony Detection in Early Blind Individuals." Perception 43, no. 10 (2014): 1083–96. http://dx.doi.org/10.1068/p7789.

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Striem-Amit, Ella, Smadar Ovadia-Caro, Ningcong Tong, Xiaoying Wang, Yanchao Bi, and Alfonso Caramazza. "Visual cortex connectivity variability in congenitally blind individuals." Journal of Vision 19, no. 10 (2019): 159c. http://dx.doi.org/10.1167/19.10.159c.

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Occelli, Valeria, Jonathan B. Lin, Simon Lacey, and K. Sathian. "Spatial imagery and cognitive style in blind individuals." Multisensory Research 26, no. 1-2 (2013): 186. http://dx.doi.org/10.1163/22134808-000s0139.

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Parreira, Rodolfo Borges, Luanda André Collange Grecco, and Claudia Santos Oliveira. "Postural control in blind individuals: A systematic review." Gait & Posture 57 (September 2017): 161–67. http://dx.doi.org/10.1016/j.gaitpost.2017.06.008.

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Gamond, Lucile, Tomaso Vecchi, Chiara Ferrari, Lotfi B. Merabet, and Zaira Cattaneo. "Emotion processing in early blind and sighted individuals." Neuropsychology 31, no. 5 (2017): 516–24. http://dx.doi.org/10.1037/neu0000360.

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Park, Woon Ju, and Ione Fine. "How do early blind individuals experience auditory motion?" Journal of Vision 22, no. 14 (2022): 3098. http://dx.doi.org/10.1167/jov.22.14.3098.

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Werner, Mona M., and Alfred D. Hagle. "Library services to blind and physically handicapped individuals." Book Research Quarterly 5, no. 3 (1989): 60–65. http://dx.doi.org/10.1007/bf02683783.

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Chan, Chetwyn C. H., Alex W. K. Wong, Kin-Hung Ting, Susan Whitfield-Gabrieli, Jufang He, and Tatia M. C. Lee. "Cross auditory-spatial learning in early-blind individuals." Human Brain Mapping 33, no. 11 (2011): 2714–27. http://dx.doi.org/10.1002/hbm.21395.

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Lee, Jarrett G. W., Bongshin Lee, Soyoung Choi, JooYoung Seo, and Eun Kyoung Choe. "Identify, Adapt, Persist." Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies 8, no. 2 (2024): 1–21. http://dx.doi.org/10.1145/3659585.

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Personal health technologies (PHTs) often do not consider the accessibility needs of blind individuals, preventing access to their capabilities and data. However, despite the accessibility barriers, some blind individuals persistently use such systems and even express satisfaction with them. To obtain a deeper understanding of blind users' prolonged experiences in PHTs, we interviewed 11 individuals who continue to use such technologies, discussing and observing their past and current interactions with their systems. We report on usability issues blind users encounter and how they adapt to the

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M, Sharmila. "DESIGN OF AN INTELLIGENT ELECTRIC VEHICLE VISUALLY CHALLENGED PERSON." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 05 (2024): 1–5. http://dx.doi.org/10.55041/ijsrem33221.

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Blind individuals now utilise a conventional cane to guide them as they go from one location to another. Even though the standard cane is the most widely used aid for the blind today, it is unable to assist them in identifying hazards from various degrees of obstruction. Within this framework, we suggest a novel intelligent system to assist those who are blind or partially sighted. Through the usage of this device, blind persons may walk around with the same confidence and ease as sighted people. The system is connected to a GSM- GPS module in order to pinpoint the blind person's position and

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Szubielska, Magdalena, Marta Szewczyk, Paweł Augustynowicz, Wojciech Kędziora, and Wenke Möhring. "Adults’ spatial scaling of tactile maps: Insights from studying sighted, early and late blind individuals." PLOS ONE 19, no. 5 (2024): e0304008. http://dx.doi.org/10.1371/journal.pone.0304008.

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The current study investigated spatial scaling of tactile maps among blind adults and blindfolded sighted controls. We were specifically interested in identifying spatial scaling strategies as well as effects of different scaling directions (up versus down) on participants’ performance. To this aim, we asked late blind participants (with visual memory, Experiment 1) and early blind participants (without visual memory, Experiment 2) as well as sighted blindfolded controls to encode a map including a target and to place a response disc at the same spot on an empty, constant-sized referent space.

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Jaén-Vargas, Milagros, Josué Pagán, Shiyang Li, et al. "AI-driven balance evaluation: a comparative study between blind and non-blind individuals using the mini-BESTest." PeerJ Computer Science 11 (March 14, 2025): e2695. https://doi.org/10.7717/peerj-cs.2695.

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There are 2.2 billion visually impaired individuals and 285 million blind people worldwide. The vestibular system plays a fundamental role in the balance of a person related to sight and hearing, and thus blind people require physical therapy to improve their balance. Several clinical tests have been developed to evaluate balance, such as the mini-BESTest. This test has been used to evaluate the balance of people with neurological diseases, but there have been no studies that evaluate the balance of blind individuals before. Furthermore, despite the scoring of these tests being not subjective,

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Balaban, Tilbert, and Anatoly Sachenko. "Development of a Web Application for Taking Tests by Blind People." Advances in Cyber-Physical Systems 8, no. 1 (2023): 1–8. http://dx.doi.org/10.23939/acps2023.01.001.

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The main purpose of this article is to de- scribethe process of creating a web application designed specifically for blind individuals to take tests. The author discusses the challenges that visually impaired individuals face when taking tests and how the new web application addresses these challenges. The application has been devel- oped using web accessibility guidelines and includes features such as screen reader compatibility, speech recognition, keyboard navigation, and high-contrast options. The author also discusses the testing process used to ensure that the application was effective a

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Priyanshu, Kumar, Kumar Gupta Rahul, and Tiwari Kunal. "Ultrasonic Smart Goggles For Blind People." Journal of Control System and its Recent Developments 7, no. 1 (2024): 31–34. https://doi.org/10.5281/zenodo.10929853.

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<em>The field of embedded systems technology is expanding quickly these days, and our project—obstacle detection for the blind—was created on an embedded system platform. Using the newest technology, an Arduino board, the primary goal of this project is to protect blind individuals from hazards. One of the main problems for those who are blind or partially blind is obstacle detection. The primary goal of this project is to identify nearby obstacles and alert the user to their location, allowing them to choose the best course of action. In this project, an Arduino and an ultrasonic

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van der Heijden, Kiki, Elia Formisano, Giancarlo Valente, Minye Zhan, Ron Kupers, and Beatrice de Gelder. "Reorganization of Sound Location Processing in the Auditory Cortex of Blind Humans." Cerebral Cortex 30, no. 3 (2019): 1103–16. http://dx.doi.org/10.1093/cercor/bhz151.

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Abstract Auditory spatial tasks induce functional activation in the occipital—visual—cortex of early blind humans. Less is known about the effects of blindness on auditory spatial processing in the temporal—auditory—cortex. Here, we investigated spatial (azimuth) processing in congenitally and early blind humans with a phase-encoding functional magnetic resonance imaging (fMRI) paradigm. Our results show that functional activation in response to sounds in general—independent of sound location—was stronger in the occipital cortex but reduced in the medial temporal cortex of blind participants i

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Fieger, Anne, Brigitte Röder, Wolfgang Teder-Sälejärvi, Steven A. Hillyard, and Helen J. Neville. "Auditory Spatial Tuning in Late-onset Blindness in Humans." Journal of Cognitive Neuroscience 18, no. 2 (2006): 149–57. http://dx.doi.org/10.1162/jocn.2006.18.2.149.

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Blind individuals who lost their sight as older children or adults were compared with normally sighted controls in their ability to focus auditory spatial attention and to localize sounds in a noisy acoustic environment. Event-related potentials (ERPs) were recorded while participants attended to sounds presented in free field from either central or peripheral arrays of speakers with the task of detecting infrequent targets at the attended location. When attending to the central array of speakers, the two groups detected targets equally well, and their spatial tuning curves for both ERPs and t

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Leo, Andrea, Giulio Bernardi, Giacomo Handjaras, Daniela Bonino, Emiliano Ricciardi, and Pietro Pietrini. "Increased BOLD Variability in the Parietal Cortex and Enhanced Parieto-Occipital Connectivity during Tactile Perception in Congenitally Blind Individuals." Neural Plasticity 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/720278.

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Previous studies in early blind individuals posited a possible role of parieto-occipital connections in conveying nonvisual information to the visual occipital cortex. As a consequence of blindness, parietal areas would thus become able to integrate a greater amount of multimodal information than in sighted individuals. To verify this hypothesis, we compared fMRI-measured BOLD signal temporal variability, an index of efficiency in functional information integration, in congenitally blind and sighted individuals during tactile spatial discrimination and motion perception tasks. In both tasks, t

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Choi, Hyo Jung, Jeong-Sug Kyong, Jae Hee Lee, Seung Ho Han, and Hyun Joon Shim. "The Impact of Spectral and Temporal Degradation on Vocoded Speech Recognition in Early-Blind Individuals." eneuro 11, no. 5 (2024): ENEURO.0528–23.2024. http://dx.doi.org/10.1523/eneuro.0528-23.2024.

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This study compared the impact of spectral and temporal degradation on vocoded speech recognition between early-blind and sighted subjects. The participants included 25 early-blind subjects (30.32 ± 4.88 years; male:female, 14:11) and 25 age- and sex-matched sighted subjects. Tests included monosyllable recognition in noise at various signal-to-noise ratios (−18 to −4 dB), matrix sentence-in-noise recognition, and vocoded speech recognition with different numbers of channels (4, 8, 16, and 32) and temporal envelope cutoff frequencies (50 vs 500 Hz). Cortical-evoked potentials (N2 and P3b) were

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Sonwane, Prof Vishnu. "Ultrasonic Vibrator Glove for Enhanced Mobility and Safety in Visually Impaired Individuals." International Journal for Research in Applied Science and Engineering Technology 11, no. 11 (2023): 1509–15. http://dx.doi.org/10.22214/ijraset.2023.56518.

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Abstract: This paper explores the conception, production, and actual use of an ultrasonic vibrator glove intended to aid the blind. The glove accomplishes real-time obstacle detection and offers tactile feedback by merging cutting-edge components such an ultrasonic sensor, haptic motor, and Arduino UNO board. For people who are blind, this breakthrough dramatically improves mobility, independence, and safety. The glove's integration of haptic vibration and ultrasonic detection overcomes conventional constraints and gives users a natural approach to understand their environment. The Ultrasonic

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LEGER, Damien, Christian GUILLEMINAULT, Remy DEFRANCE, Alain DOMONT, and Michel PAILLARD. "Prevalence of sleep/wake disorders in persons with blindness." Clinical Science 97, no. 2 (1999): 193–99. http://dx.doi.org/10.1042/cs0970193.

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Blind individuals are not only handicapped by their loss of vision, but are also affected because the loss of sight may have a secondary impact on functioning of their biological clock. The objective of the present study was to determine the impact of visual loss on sleep/wake disorders. A prospective 48-item questionnaire survey was distributed to blind individuals through the French Association Valentin Haüy, which serves blind persons. A control group matched by age, sex, geographical location and professional activity/non-activity was obtained from a panel of 20000 households representativ

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Klerman, Elizabeth B., David W. Rimmer, Derk-Jan Dijk, Richard E. Kronauer, Joseph F. Rizzo, and Charles A. Czeisler. "Nonphotic entrainment of the human circadian pacemaker." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 274, no. 4 (1998): R991—R996. http://dx.doi.org/10.1152/ajpregu.1998.274.4.r991.

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In organisms as diverse as single-celled algae and humans, light is the primary stimulus mediating entrainment of the circadian biological clock. Reports that some totally blind individuals appear entrained to the 24-h day have suggested that nonphotic stimuli may also be effective circadian synchronizers in humans, although the nonphotic stimuli are probably comparatively weak synchronizers, because the circadian rhythms of many totally blind individuals “free run” even when they maintain a 24-h activity-rest schedule. To investigate entrainment by nonphotic synchronizers, we studied the endo

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