LEAP Motion Technology and Psychology: A Mini-Review on Hand Movements Sensing for Neurodevelopmental and Neurocognitive Disorders

Advances in applying somatosensory interaction technology in geriatric care: A bibliometric analysis

Objectives

Somatosensory Interaction Technology (SIT) is used in various aspects of geriatric care. We aimed to conduct a bibliometric analysis to summarize relevant publications and visualize publication characteristics, current hotspots, and development trends, thereby inspiring subsequent researches.

Methods

We searched the Web of Science Core Collection database for publications on the application of SIT in geriatric care. Bibliometric visualization and clustering analysis were performed using VOSviewer V1.6.18 Software, while keywords burst detection analysis was conducted with CiteSpace 6.1.R6 Software.

Results

After screening, a total of 1,019 publications were included. The number of publications on SIT in geriatric care is gradually increasing, exhibiting a rapid growth rate. The United States, Canada, and Australia led in terms of publication volume. Keyword clustering analysis identified major research hotspots: crisis warning, somatic abilities, rehabilitation training and psychosocial support. Initial studies primarily explored themes such as recovery, movement, systems, and later shifted towards gait analysis, muscle strength, parameters, and home-based care. More recently, research themes have evolved to dementia, machine learning, and gamification.

Conclusions

SIT is innovative for promoting active aging, advancing intelligent healthcare, and elevating the daily quality of life for older adults in clinical and domestic settings. Applications of SIT can be categorized into early warning systems for crises, detailed analyses of physical conditions, rehabilitation enhancement, and support for psychosocial health. Research trends have transitioned from whole-body recognition to precise feedback, from a focus on physical health to mental health, and from technical feasibility to user-friendliness. Future research should focus on developing accessible and user-friendly devices, fostering interdisciplinary collaborations for innovation, expanding research to address both the physical and mental health needs of diverse older adults, and integrating emerging technologies to enhance data precision and accelerate the development of intelligent platforms.

Effects of a Virtual Reality Game With Leap Motion Controller on Brain Activity Related to Attentional Function in Healthy Adults - A Pilot EEG Study

Objective Virtual reality (VR) games with the Leap Motion Controller (LMC) are used in clinical practice for cognitive rehabilitation to improve attentional function. However, the effects of VR games using the LMC on brain activity related to attentional function have not yet been elucidated. This study aimed to elucidate the effects of a VR game with the LMC on brain activity related to attentional function. Methods This single-arm study included 15 healthy adults (mean age, 23.2 ± 0.9 years; seven females) and analyzed their electroencephalography (EEG) findings. We measured event-related potentials (ERPs) before and after the VR game with the LMC, and the α, θ, and β values during the VR game with the LMC. EEG measurements were based on the international 10-20 system, with dish electrodes placed at F3, F4, Fz, C3, C4, Cz, P3, P4, Pz, O1, and O2 using EEG caps. For statistical analysis, the N1 peak amplitudes before and after the VR game were compared using paired t-tests. In addition, the average amplitudes of α, θ, and β at 10-20 ms and 280-290 ms during the VR game were compared using paired t-tests only for positions that showed significant changes in the N1 peak amplitude before and after the VR game. Results After the VR game, the N1 peak amplitude was significantly greater at the F4 (pre: -4.51 ± 3.49 μV, post: -6.31 ± 2.60 μV, P = 0.010), Fz (pre: -4.68 ± 2.85 μV, post: -6.29 ± 2.17 μV, P = 0.033), and C4 (pre: -4.43 ± 3.94 μV, post: -6.24 ± 2.56 μV, P = 0.015) positions. During the VR game, the average amplitude of α at the F4 position (during a VR game of 10-20 ms: 7.86 ± 1.33 μV; during a VR game of 280-290 ms: 9.40 ± 2.69 μV, P = 0.010) was significantly higher at 280-290 ms. Conclusions The N1 peak amplitude, meaning selective attention, in F4, Fz, and C4 and the amplitude of α, meaning control interference of unwanted stimuli in a task, in F4 were increased in the post-VR game using LMC. VR games using the LMC may contribute to improvements in attentional function. Further studies are required to assess their applications in cognitive rehabilitation.

Impact of AI-Powered Solutions in Rehabilitation Process: Recent Improvements and Future Trends

Rehabilitation is an important and necessary part of local and global healthcare services along with treatment and palliative care, prevention of disease, and promotion of good health. The rehabilitation process helps older and young adults even children to become as independent as possible in activities of daily life and enables participation in useful living activities, recreation, work, and education. The technology of Artificial Intelligence (AI) has evolved significantly in recent years. Many activities related to rehabilitation have been getting benefits from using AI techniques. The objective of this review study is to explore the advantages of AI for rehabilitation and how AI is impacting the rehabilitation process. This study aims at the most critical aspects of the rehabilitation process that could potentially take advantage of AI techniques including personalized rehabilitation apps, rehabilitation through assistance, rehabilitation for neurological disorders, rehabilitation for developmental disorders, virtual reality rehabilitation, rehabilitation of neurodegenerative diseases and Telerehabilitation of Cardiovascular. We presented a survey on the newest empirical studies available in the literature including the AI-based technology helpful in the Rehabilitation process. The novelty feature included but was not limited to an overview of the technological solutions useful in rehabilitation. Seven different categories were identified. Illustrative examples of practical applications were detailed. Implications of the findings for both research and practice were critically discussed. Most of the AI applications in these rehabilitation types are in their infancy and continue to grow while exploring new opportunities. Therefore, we investigate the role of AI technology in rehabilitation processes. In addition, we do statistical analysis of the selected studies to highlight the significance of this review work. In the end, we also present a discussion on some challenges, and future research directions.

Quantitative measurement of finger usage in stroke hemiplegia using ring-shaped wearable devices

BACKGROUND

In post-stroke rehabilitation, positive use of affected limbs in daily life is important to improve affected upper-limb function. Several studies have quantitatively evaluated the amount of upper-limb activity, but few have measured finger usage. In this study, we used a ring-shaped wearable device to measure upper-limb and finger usage simultaneously in hospitalized patients with hemiplegic stroke and investigated the association between finger usage and general clinical evaluation.

METHODS

Twenty patients with hemiplegic stroke in an inpatient hospital participated in this study. All patients wore a ring-shaped wearable device on both hands for 9 h on the day of the intervention, and their finger and upper-limb usage were recorded. For the rehabilitation outcome assessments, the Fugl-Meyer Assessment of the Upper Extremity (FMA-UE), Simple Test for Evaluating Hand Function (STEF), Action Research Arm Test (ARAT), Motor Activity Log-14 (MAL), and Functional Independence Measure Motor (FIM-m) were performed and evaluated on the same day as the intervention.

RESULTS

Finger usage of the affected hand was moderately correlated with STEF ([Formula: see text], [Formula: see text]) and STEF ratio ([Formula: see text], [Formula: see text]). The finger-usage ratio was moderately correlated with FMA-UE ([Formula: see text], [Formula: see text]) and ARAT ([Formula: see text], [Formula: see text]), and strongly correlated with STEF ([Formula: see text], [Formula: see text]) and STEF ratio ([Formula: see text], [Formula: see text]). The upper-limb usage of the affected side was moderately correlated with FMA-UE ([Formula: see text], [Formula: see text]), STEF ([Formula: see text], [Formula: see text]) and STEF ratio ([Formula: see text], [Formula: see text]), and strongly correlated with ARAT ([Formula: see text], [Formula: see text]). The upper-limb usage ratio was moderately correlated with ARAT ([Formula: see text], [Formula: see text]) and STEF ([Formula: see text], [Formula: see text]), and strongly correlated with the STEF ratio ([Formula: see text], [Formula: see text]). By contrast, there was no correlation between MAL and any of the measurements.

CONCLUSIONS

This measurement technique provided useful information that was not biased by the subjectivity of the patients and therapists.

On the Multimodal Resolution of a Search Sequence in Virtual Reality

In virtual reality (VR), participants may not always have hands, bodies, eyes, or even voices—using VR helmets and two controllers, participants control an avatar through virtual worlds that do not necessarily obey familiar laws of physics; moreover, the avatar’s bodily characteristics may not neatly match our bodies in the physical world. Despite these limitations and specificities, humans get things done through collaboration and the creative use of the environment. While multiuser interactive VR is attracting greater numbers of participants, there are currently few attempts to analyze the in situ interaction systematically. This paper proposes a video-analytic detail-oriented methodological framework for studying virtual reality interaction. Using multimodal conversation analysis, the paper investigates a nonverbal, embodied, two-person interaction: two players in a survival game strive to gesturally resolve a misunderstanding regarding an in-game mechanic—however, both of their microphones are turned off for the duration of play. The players’ inability to resort to complex language to resolve this issue results in a dense sequence of back-and-forth activity involving gestures, object manipulation, gaze, and body work. Most crucially, timing and modified repetitions of previously produced actions turn out to be the key to overcome both technical and communicative challenges. The paper analyzes these action sequences, demonstrates how they generate intended outcomes, and proposes a vocabulary to speak about these types of interaction more generally. The findings demonstrate the viability of multimodal analysis of VR interaction, shed light on unique challenges of analyzing interaction in virtual reality, and generate broader methodological insights about the study of nonverbal action.

Impact of Virtual Reality Cognitive and Motor Exercises on Brain Health

Innovative technologies of the 21st century have an extremely significant impact on all activities of modern humans. Among them, virtual reality (VR) offers great opportunities for scientific research and public health. The results of research to date both demonstrate the beneficial effects of using virtual worlds, and indicate undesirable effects on bodily functions. This review presents interesting recent findings related to training/exercise in virtual environments and its impact on cognitive and motor functions. It also highlights the importance of VR as an effective tool for assessing and diagnosing these functions both in research and modern medical practice. The findings point to the enormous future potential of these rapidly developing innovative technologies. Of particular importance are applications of virtual reality in basic and clinical neuroscience.

Precision and accuracy of measuring finger motion with a depth camera: a cross-sectional study of healthy participants

The purpose of this cross-sectional study was to determine the precision and accuracy of the measurement of finger motion with a depth camera. Fifty-five healthy adult hands were included. Measurements were done with a depth camera and compared with traditional manual goniometer measurements. Repeated measuring showed that the overall repeatability and reproducibility of extension measured with the depth camera were within 3° and 4° and that of flexion were within 13° and 14°. Compared with traditional manual goniometry, biases of extension of all finger joints and flexion of metacarpophalangeal joints were less than 5°, and the average bias of flexion of proximal and distal interphalangeal joints was 29°. We conclude that the measurement of finger extension and flexion of the metacarpophalangeal joints with a depth camera was reliable, but improvement is required in the precision and accuracy of interphalangeal joint flexion.

Validity and Reliability of a Depth Camera-Based Quantitative Measurement for Joint Motion of the Hand

Purpose

Quantitative measurement of hand motion is essential in evaluating hand function. This study aimed to investigate the validity and reliability of a novel depth camera-based contactless automatic measurement system to assess hand range of motion and its potential benefits in clinical applications.

Methods

Five hand gestures were designed to evaluate the hand range of motion using a depth camera-based measurement system. Seventy-one volunteers were enrolled in performing the designed hand gestures. Then, the hand range of motion was measured with the depth camera and manual procedures. System validity was evaluated based on 3 dimensions: repeatability, within-laboratory precision, and reproducibility. For system reliability, linear evaluation, the intraclass correlation coefficient, paired t -test and bias were employed to test the consistency and difference between the depth camera and manual procedures.

Results

When measuring phalangeal length, repeatability, within-laboratory precision, and reproducibility were 2.63%, 12.87%, and 27.15%, respectively. When measuring angles of hand motion, the mean repeatability and within-laboratory precision were 1.2° and 3.3° for extension of 5 digits, 2.7° and 10.2° for flexion of 4 fingers, and 3.1° and 5.3° for abduction of 4 metacarpophalangeal joints, respectively. For system reliability, the results showed excellent consistency (intraclass correlation coefficient = 0.823; P < .05) and good linearity with the manual procedures (r = 0.909-0.982, approximately; P < .001). Besides, 78.3% of the measurements were clinically acceptable.

Conclusions

Our depth camera-based evaluation system provides acceptable validity and reliability in measuring hand range of motion and offers potential benefits for clinical care and research in hand surgery. However, further studies are required before clinical application.

Clinical relevance

This study suggests a depth camera-based contactless automatic measurement system holds promise for assessing hand range of motion in hand function evaluation, diagnosis, and rehabilitation for medical staff. However, it is currently not adequate for all clinical applications.

The effect of motion games on improving the psychomotor and intellectual performance of children with autism spectrum disorder and intellectual disabilities

Introduction. Depressive states and anxiety are common symptoms of children with autism spectrum disorder (ASD). The persons with intellectual disabilities show problems related to the development of basic motor skills, having learning problems compared to normal ones, imbalances between the processes of arousal and inhibition, limited motor ability, difficult understanding of language and motor tasks, difficult concentration, mechanical assimilation etc. Objectives. The study analyzes the effectiveness of structures and motion games, applied in specific activities for children with intellectual disabilities (ID) and autism spectrum disorders (ASD). Material and Methods. The research involved an experimental group of 5 children with one of these disabilities or their combination (age 10-11 years), included in a training process at the Ion Teodorescu Special Vocational School in Slobozia / Ialomița / Romania and comparing their results with a control group (6 normal children, with an average age of 10 years), between 20.09.2020-10.03.2021. The assessment of the level of psychomotor and intellectual development was made by the Cutout Test, the Cohs Cube Test (light task configurations) and an Attention Flexibility Test (movement to the corners of the room/field depending on the assigned color, counting successful attempts and mistakes). Results and discussion. The obtained results confirm the working hypothesis, so the use of the structures and games proposed in the program contributes to a significant improvement of the psychomotor and intellectual performances of students with intellectual disabilities and autism spectrum. Conclusion. espite all these improvements, they cannot approach or equal the reference values of children without problems, falling into the same age category. Keywords: psychomotor skills, adapted physical activities, recovery, children, learning disabilities,

BEAGLE-A Kinematic Sensory System for Objective Hand Function Assessment in Technology-Mediated Rehabilitation

We present a hand functions assessment system (BEAGLE) for kinematic tracking of hand and finger movements, envisioned as a technology-mediated rehabilitation tool. The system is custom-designed for fast and easy placement on an impaired hand (spastic or flaccid), featuring inertial sensors integrated into simple finger caps and a hand strap. An algorithm for a range of motion (ROM) estimation was implemented to provide an objective assessment of hand functions. The efficacy and feasibility of the BEAGLE system were examined in a pilot clinical study performed with ten stroke survivors in the subacute phase. Participants received therapy within two consecutive intensity-matched rehabilitation cycles. The first consisted of conventional therapy, while the second involved a combination of conventional therapy and advanced functional electrical stimulation. Assessments were performed before and after each phase. These included BEAGLE estimates of active voluntary ROM for wrist and various digits, as well as two referent clinical measures for hand functions assessment, Fugl-Meyer and Action Research Arm Test. The results indicate that the ROM assessments can detect change with sensitivity comparable to the standardized clinical scales. Statistically significant changes between the beginning and the end of the second cycle existed in all observed measures, whereas none of these measurements showed a statistically significant improvement in the first therapy cycle. The noted usability metrics indicate that the BEAGLE could be integrated into the rehabilitation workflow in a clinical environment.

Helping patients connect remotely with their loved ones modulates distress in healthcare workers: a tend-and-befriend hypothesis for COVID-19 front liners

The no-visitor policies endorsed by healthcare organizations to limit COVID-19 virus risk exposure have unfortunately contributed to the isolation of patients further exacerbating distress in relatives and frontline healthcare workers. To contrast such effects, many healthcare institutions have adopted technology-based solutions helping patients and families communicate online through the aid of virtual devices. To date, no study has investigated whether facilitating patient-family videocalls would mitigate distress levels in frontline healthcare professionals. Caring for emotional needs of patients by re-establishing affiliative connections interrupted by the pandemic through patient-family videocalls is expected to mitigate distress in engaged healthcare workers as an example of a tend-and-befriend response to stress caused by the pandemic. We tested this hypothesis in a cross-sectional study conducted during 1-30 June 2020, involving 209 healthcare workers (nurses = 146; physicians = 63) engaged in the COVID-19 frontline in Italy. Half of participants in our sample (n = 107) had assisted efforts aimed at connecting patients remotely with families through videocalls. Psychological distress measures included symptoms of burnout, post-traumatic stress, anxiety, depression, and difficulty in sleep and wakefulness. Partially in line with our expectations we found a modulation effect specific for professional category: nurses assisting patient-family videocalls reported significantly lower levels of distress and a better quality of wakefulness compared to those who did not, whereas physicians reported higher levels of distress during such virtual communications. We interpret these findings from the perspective of patient-family communication and differences in skills and training between nurses and physicians. These findings highlight that technology-based solutions aimed at reducing barriers and alleviating distress in healthcare settings should be promoted in concert with skill enhancement training for healthcare professionals especially in terms of communicating online and communicating difficult topics with patients and families.