Verbal Instructions Research Articles

The acute effect of verbal instructions on performance and landing when dropping from different heights: the ground reaction force-time profile of drop vertical jumps in female volleyball athletes

The acute effect of verbal instructions on performance and landing when dropping from different heights: the ground reaction force-time profile of drop vertical jumps in female volleyball athletes

DO NEURO ONCOLOGY PATIENTS FEEL SUffiCIENTLY SUPPORTED TO MANAGE THEIR SURGICAL WOUNDS AFTER SURGERY?

Abstract AIMS Establish if neuro oncology patients feel they are sufficiently well supported to manage their wounds post operatively. Is there any correlation to patient wound care management and developing wound infections. METHOD There was an anecdotal rise in wound infections in the neuro oncology department, which led to the team investigation a cause. This project was looking to see if patients felt they were sufficiently supported to manage their wounds post operatively. A survey was sent via email to 94 patient’s who had undergone neurosurgery under the neuro oncology team at a London teaching Hospital in December 2023, January 2024, and February 2024. RESULTS There was a response rate of 23.5%. Overall 96% of patients felt able to manage their wound post operatively. 76% of people wished to have the information on wound care at discharge from hospital. 68% advised that they would like to receive information about wound care via printed material and 76% would like verbal instruction with questions. Patients commented that ‘there was a conflict of information’, and ‘the information at discharge could have been better’. They would like information on’ how to clean it [the wound]. 3 patients had a suspect infection but did not have treatment, and 1 had a confirmed infection with treatment. CONCLUSION Neuro oncology patients are able to manage their wounds post operatively, but they feel that they would benefit from extra support via written material, and verbal instructions. Future projects may include developing an evidence based post operative wound care information leaflet and instructions for wound care. Although in this cohort there was only 1 confirmed infection, further investigation is needed to establish the cause for the apparent increase.

Understanding Fitness Trends in the Virtual Age: A Content Analysis of TikTok Workout Videos

ABSTRACT The purpose of this study was to examine the content of workout videos on TikTok. A sample of 297 TikTok workout videos was coded for demographic factors and body shape of content creators, as well as the presence of body positivity messaging, appearance-related messaging, and other relevant themes. The results suggest that TikTok workout content is often presented in a time-lapse format with little verbal instruction, which may make it difficult for viewers to perform the exercises. The majority of the videos depicted young women with athletic bodies and other characteristics associated with culturally based beauty ideals, and approximately half of the videos included non-White content creators. Approximately a quarter of the videos in the sample included objectification and a smaller proportion of the sample included messages about inner positivity. Overall, the TikTok platform may provide underrepresented individuals opportunities to seek out workout content from a more diverse group of instructors; however, the fact that many of these videos including objectifying depictions of the content creators is concerning. Further experimental work is needed in order to more fully elucidate the effects of TikTok workout videos on viewers.

Effects of educational material among children with clubfoot during bracing stage of treatment by Ponseti method

Aims: To identify effects of educational material among children with clubfoot during bracing stage of treatment by Ponseti method. Methods: This study was a quantitative type quasi-experimental research design. Actually, it was an experiment among specific groups and usual groups. Exercises applied with educational material to the material group or experiment group and only usual exercises applied to the non-material group or the control group. A pre-test (before exercises provided by educational material) and post-test (after exercises provided by educational material) was administered with each subject of both groups to compare the effects on children with clubfoot during bracing stage of treatment by Ponseti method. Results: The mean Pirani score before providing exercises with educational material for right feet among the clubfoot babies were 0.56 ± 0.33 (material group) and after providing exercises with educational material for right feet among the clubfoot babies were 0.43 ± 0.41 (material group). Statistically it was found highly significant (t = 2.99, p greater 0.0003). So, it was concluded that exercises with educational material had significant influence on Pirani score reduction for right feet among the clubfoot babies. The mean Pirani score before providing usual exercises for left feet among the clubfoot babies were 0.5 ± 0.15 (non-material group) and after providing usual exercises for left feet among the clubfoot babies were 0.53 ± 0.48 (non-material group). Statistically it was found significant (t = –0.059, p greater 0.056). So, it was concluded that usual exercises without educational material had influence on Pirani score increased for left feet among the clubfoot babies. Conclusion: The modern treatment of clubfoot is Ponseti method which is very effective, outcome oriented, and less invasive surgical procedure. This study was concluded that exercises with educational material had significant influence on Pirani score reduction among the children with club foot. So, there was significant importance of exercises with educational material rather than usual exercises by verbal instructions.

Rapid formation of picture-word association in cats

It is well known that dogs are capable of following human verbal instructions. However, very little is known about the equivalent ability in cats. In this study, we used a switched stimuli task to examine whether cats rapidly form picture-word association, which is a fundamental ability for word learning. We presented cats with two meaningless picture-word combinations, in the habituation phase. Then, on half of the trials we switched the combination (switched condition), but the other half of the trials remained as before (non-switched condition). If cats rapidly form picture-word association, they were expected to look at the monitor for longer in the switched condition, reflecting detection of the change. We used human speech as stimuli in Exp.1, and mechanical sounds (electronic sounds) in Exp.2. Cats expressed detection of the switched combination in Exp.1, where human speech and objects were paired. However, in Exp.2 where non-social sounds and objects were paired, there was no statistical difference between switched and non-switched conditions, although there was a main effect of condition when the data from the two experiments were pooled. These results demonstrate that cats can rapidly form picture-word association. Further research should investigate whether domestication has played a role in this ability.

Effects of gait retraining in knee joint position sense

BackgroundJoint position sense (JPS) is crucial for maintaining posture, protecting joints, and carrying out daily activities such as walking. Studies show that exercises to strengthen muscles and improve proprioception can positively impact JPS during passive and less complex activities. Evidence suggests that motor training can effectively enhance sensory function, including JPS, due to the extensive connections between the motor cortex and somatosensory areas. Gait retraining using real-time feedback has improved outcomes among patients with musculoskeletal disorders. The effect of gait retraining on JPS has not been investigated. This study assessed the effects of gait retraining to reduce knee extension in joint position sense in individuals with knee hyperextension walking patterns. MethodsTen women with asymptomatic knee hyperextension (KH) >5° during overground walking participated in this study. Sagittal-plane kinematics were assessed using a three-dimensional (3D) motion analysis system. The JPS was assessed using the Knee Position Active Reproduction Test. The knee with the highest hyperextension was the focus of the gait retraining intervention, which consisted of six 1-h sessions using verbal instructions and visual kinematic feedback. Comparisons of peak knee extension during walking and knee JPS overall error (RMSE) were made using a paired t-test. ResultsGait retraining intervention significantly reduced knee extension angle during walking (83.8 % change; p < 0.001; Cohen's d = −1.6) and improved knee JPS (62 % change; p = 0.023; Cohen's d = 0.8) post-training. In addition, the improvements in joint kinematics (36.7 % change; p = 0.005; Cohen's d = −1.2) and JPS (52.6 % change; p = 0.015; Cohen's d = 0.9) were observed in the untrained knee. SignificanceGait retraining can improve joint position sense. This study addresses a gap in our understanding of how gait retraining can influence JPS. Our results corroborate that gait retraining is an evolving and promising strategy for improving gait outcomes, particularly in individuals with KH walking patterns.

Implementation of Natural Language Processing for Bullying Complaints with Voice to Text Conversion

Bullying in high school is frequent and negatively affects students' psychological well-being. The lack of effective reporting mechanisms makes students hesitant to report bullying cases for fear of their identity being exposed, which can lead to stigma or retaliation. The lack of data on bullying incidents also hampers prevention and intervention measures. The study designed and implemented a mobile application that uses natural language processing (NLP) for speech-to-text conversion, enabling anonymous and convenient reporting of bullying cases. The app ensures the anonymity of whistleblowers and facilitates the collection of accurate data on bullying incidents, helping schools respond with appropriate preventive measures. Software engineering methodologies are used with a focus on requirements analysis, system design, implementation, and application testing. NLP technology is used to interpret verbal instructions into text, with the Support Vector Machine (SVM) method for text classification, ensuring high accuracy in detecting bullying incidents. The trial application in several high schools showed the relevance and effectiveness of the application. Ethical and security considerations are top priorities, with an emphasis on whistleblower identity protection and data security. The test results showed that the application achieved 92% accuracy, 90% precision, and 88% recall, demonstrating its effectiveness in collecting bullying reports anonymously and accurately.

A Smart Water Bottle and Companion App (HidrateSpark 3) to Improve Bladder-Filling Compliance in Patients With Prostate Cancer Receiving Radiotherapy: Nonrandomized Trial of Feasibility and Acceptability.

Patients with prostate cancer undergoing radiation therapy (RT) need comfortably full bladders to reduce toxicities during treatment. Poor compliance is common with standard of care written or verbal instructions, leading to wasted patient value (PV) and clinic resources via poor throughput efficiency (TE). Herein, we assessed the feasibility and acceptability of a smartphone-based behavioral intervention (SBI) to improve bladder-filling compliance and methods for quantifying PV and TE. In total, 36 patients with prostate cancer were enrolled in a single-institution, closed-access, nonrandomized feasibility trial. The SBI consists of a fully automated smart water bottle and smartphone app. Both pieces alert the patient to empty his bladder and drink a personalized volume goal, based on simulation bladder volume, 1.25 hours before his scheduled RT. Patients were trained to adjust their volume goal and notification times to achieve comfortably full bladders. The primary end point was met if qualitative (QLC) and quantitative compliance (QNC) were >80%. For QLC, patients were asked if they prepared their bladders before daily RT. QNC was met if bladder volumes on daily cone-beam tomography were >75% of the simulation's volume. The Service User Technology Acceptability Questionnaire (SUTAQ) was given in person pre- and post-SBI. Additional acceptability and engagement end points were met if >3 out of 5 across 4 domains on the SUTAQ and >80% (15/18) of patients used the device >50% of the time, respectively. Finally, the impact of SBI on PV and TE was measured by time spent in a clinic and on the linear accelerator (linac), respectively, and contrasted with matched controls. QLC was 100% in 375 out of 398 (94.2%) total treatments, while QNC was 88.9% in 341 out of 398 (85.7%) total treatments. Of a total score of 5, patients scored 4.33 on privacy concerns, 4 on belief in benefits, 4.56 on satisfaction, and 4.24 on usability via SUTAQ. Further, 83% (15/18) of patients used the SBI on >50% of treatments. Patients in the intervention arm spent less time in a clinic (53.24, SEM 1.71 minutes) compared to the control (75.01, SEM 2.26 minutes) group (P<.001). Similarly, the intervention arm spent less time on the linac (10.67, SEM 0.40 minutes) compared to the control (14.19, SEM 0.32 minutes) group (P<.001). This digital intervention trial showed high rates of bladder-filling compliance and engagement. High patient value and TE were feasibly quantified by shortened clinic times and linac usage, respectively. Future studies are needed to evaluate clinical outcomes, patient experience, and cost-benefit. ClinicalTrials.gov NCT04946214; https://www.clinicaltrials.gov/study/NCT04946214.

Voice user interfaces for effortless navigation in medical virtual reality environments

In various situations, such as clinical environments with sterile conditions or when hands are occupied with multiple devices, traditional methods of navigation and scene adjustment are impractical or even impossible. We explore a new solution by using voice control to facilitate interaction in virtual worlds to avoid the use of additional controllers. Therefore, we investigate three scenarios: Object Orientation, Visualization Customization, and Analytical Tasks and evaluate whether natural language interaction is possible and promising in each of these scenarios. In our quantitative user study participants were able to control virtual environments effortlessly using verbal instructions. This resulted in rapid orientation adjustments, adaptive visual aids, and accurate data analysis. In addition, user satisfaction and usability surveys showed consistently high levels of acceptance and ease of use. In conclusion, our study shows that the use of natural language can be a promising alternative for the improvement of user interaction in virtual environments. It enables intuitive interactions in virtual spaces, especially in situations where traditional controls have limitations.

P067 HOME BLOOD PRESSURE MEASUREMENTS ARE NOT PERFORMED ACCORDING TO GUIDELINES AND STANDARDIZED EDUCATION IS URGENTLY NEEDED: A MIXED-METHODS STUDY AMONG AUSTRALIAN ADULTS

Background and Objective. Home blood pressure (BP) measurement should be undertaken according to guideline recommendations to ensure accurate BP measurement. Patient education is required to provide knowledge and skills for home BP measurement. However, little is known about how BP is measured at home and what education is provided to patients, which was the aim of this study. Methods. A 30-item survey (n=350) and interviews (n=34) among Australian adults who measure BP at home (June–December 2023). Survey questions included steps taken and education received for home BP measurement. Interviews were conducted among a purposive sample to explore survey topics in detail. Results. No participants reported always undertaking home BP measurement according to all the guideline recommendations (Figure 1). However, most participants measured BP seated (n=316, 90%), with the cuff on a bare arm (n=269, 77%) and legs uncrossed (n=232, 66%). In addition, most participants recorded their BP measurements (n=280, 80%) and reported them to a medical professional (n=232, 79%). Interview participants reported measuring BP in an ad-hoc manner, using different steps each time they measure BP at home. “I [measure BP] at different times of the day after doing different things”. Only 37% (n=112) participants received education for home BP measurement. Interview participants who received education described healthcare practitioners giving verbal instructions for BP measurement. However, there were no differences in performing home BP measurement according to guideline recommendations between participants that received education and those that did not. In the absence of education, many interview participants described mimicking BP measurement methods of their healthcare provider. “I do it the way I’ve seen them do it”. Conclusions. This study found that home BP measurement is not performed according to guideline recommendations and standardised, high-quality education is rarely delivered on how to measure BP at home. These findings highlight an urgent need for effective education strategies to support high-quality home BP measurement to appropriately inform BP management.

Walking balance control in different settings: Effects of walking speed and biological sex

BackgroundPrevious research has suggested that spatiotemporal step parameters differ between settings; however, it remains unclear how different settings influence walking balance control. Research questionHow do settings and sex influence walking balance control during walking at different speeds for young adults? MethodsForty-two adults (21 male (23 ± 4 years), 21 female (24 ± 5 years)) completed overground walking trials in four settings: laboratory (10 m), hallway, indoor open, and outdoor pathway (all 20 m) at three self-selected speeds (slow, preferred, fast) following verbal instructions. Participants wore 17 inertial sensors (Xsens Awinda, Movella, Henderson, NV) to capture total body kinematics. The number of included strides was matched across all conditions, with six strides included in each condition for all participants. Medial-lateral and anterior-posterior total body angular momentum range over each stride was calculated (HML range and HAP range). Setting × speed × sex mixed factorial analysis of variance with repeated measures on setting and speed were used for statistical analysis (α =.05). ResultsSignificant setting × speed interactions (p <.001) were present for both outcomes. HML range was greater in the laboratory and hallway compared to the indoor open and outdoor pathway settings for slow walking speed only. HAP range was lower in the outdoor pathway compared to all indoor settings at slow and preferred walking speeds. Differences in HAP range between settings was more pronounced at the slow speed condition. Across setting and speed conditions, HML range was greater for males compared to females. SignificanceYoung adults may alter their balance control strategy depending on the setting (laboratory, indoor open and outdoor pathway), particularly at slow speeds. Researchers and clinicians are cautioned not to assume walking in laboratory settings reflects walking in all settings nor that males and females can be examined as a single group.

Abstract representations emerge in human hippocampal neurons during inference

Humans have the remarkable cognitive capacity to rapidly adapt to changing environments. Central to this capacity is the ability to form high-level, abstract representations that take advantage of regularities in the world to support generalization1. However, little is known about how these representations are encoded in populations of neurons, how they emerge through learning and how they relate to behaviour2,3. Here we characterized the representational geometry of populations of neurons (single units) recorded in the hippocampus, amygdala, medial frontal cortex and ventral temporal cortex of neurosurgical patients performing an inferential reasoning task. We found that only the neural representations formed in the hippocampus simultaneously encode several task variables in an abstract, or disentangled, format. This representational geometry is uniquely observed after patients learn to perform inference, and consists of disentangled directly observable and discovered latent task variables. Learning to perform inference by trial and error or through verbal instructions led to the formation of hippocampal representations with similar geometric properties. The observed relation between representational format and inference behaviour suggests that abstract and disentangled representational geometries are important for complex cognition.

Verbal and Non-Verbal Communication between Coach and Trainees during Swimming Lessons

The article presents the process of communication between the coach and the trainees during swimming lessons. The focus falls on verbal communication through the use of terminology specific to the sport and non-verbal communication through the implementation of particular signs. Swimming is a sport that is a 465 Биляна Рангелова, Красимира Дешева, Петър Тодоров combination of specific physical movements of the body and a specific technique for breathing and exhaling in a non-human environment – water. Furthermore, swimming is suitable for practicing by children with special educational needs and disabilities (SEND), due to the fact that it allows the achievement of social integration, on the one hand, and the development of the physical condition of the body, on the other. Practicing the sport of swimming poses various challenges, as the person with SEND may have one or more disabilities that require an individual approach. Practicing the sport in an aquatic environment further complicates the communication between a coach and a trainee. In this respect, both verbal and non- verbal communication can be used. For instance, with visually impaired children, communication involves verbal commands and instructions that must be clear and understandable. For children with impaired hearing and/or speech, communication is carried out through gestures and facial expressions similar to sign language. The article will review the literature on the problem and will provide practical examples of the application of different types of communication during swimming lessons. The article has been written as part of the activities of the project “Innovative system of verbal and non-verbal means of communication within physical education and sports activities for children with SEND”, financed by the SUMMIT Sofia University Marking Momentum for Innovation and Technological Transfer Project.

Understanding caregiver preferences and technology access to plan improvement of pediatric emergency department discharge instructions.

Approximately 95% of children treated in emergency departments (EDs) in Alberta, Canada, are discharged home. Discharge teaching is an opportunity to provide caregivers with the information that they need to manage their child's condition at home and ensure appropriate follow-up. Our ED lacked a standard discharge instruction process. In preparation for local quality improvement, we sought to understand caregiver preferences regarding discharge instructions by assessing the preferred format, need for translated resources, and ability to effectively access electronic information using a Quick Response (QR) code. This project was completed at a tertiary pediatric ED in Calgary, Alberta in July and August 2021. Caregivers of pediatric patients were invited to complete a survey. Families requiring an interpreter were not eligible; however, this was recorded to estimate translation needs. Survey questions addressed preference of discharge instruction modality (verbal, printed, electronic), primary language spoken at home, ability to use English resources, and ability to use QR codes. Descriptive analyses were performed, and preferences were compared. Of 117 caregivers approached, 104 completed the survey (89%). Caregivers had a strong preference for receiving written discharge instructions, with 98% desiring either electronic or printed resources in addition to verbal instructions. There was a similar likelihood of using printed (75%) versus electronic (79%) resources (p = 0.5). Three percent of families were unable to complete the survey due to a language barrier. Of the 104 participants, 19% noted that their primary language at home was not English but that they would still use English discharge instructions. Eighty percent of participants were able to successfully use the QR code. Caregivers had a strong preference for receiving written discharge instructions, with electronic or paper formats preferred equally. Translated resources will be important for some families. QR codes may be an effective tool for distributing electronic resources to most but not all families.

Acute Effect of Transcranial Direct Current Stimulation in Pelvic Floor Muscle Function in Young Healthy Women: Initial Findings of a Randomized Controlled Trial.

Transcranial direct current stimulation (tDCS) can enhance muscle function in healthy individuals. However, it is unknown if tDCS associated with pelvic floor muscle training (PFMT) can improve pelvic floor muscle function (PFMF) in healthy women. The aim of this study was to investigate the acute effect of a single session of tDCS in PFMF compared with sham-tDCS in healthy women. A double-blind, cross-over, randomized clinical trial was conducted with healthy, nulliparous and sexually active women. PFMF was assessed by bidigital palpation (PERFECT scale) and intravaginal pressure by a manometer (Peritron™). Participants randomly underwent two tDCS sessions (active and sham) 7 days apart. The electrode was positioned equal for both protocols, the anode electrode in the supplementary motor area (M1) and the cathode electrode in the right supraorbital frontal cortex (Fp2). The current was applied for 20min at 2mA in active stimulation and for 30s in sham-tDCS. The tDCS applications were associated with verbal instructions to PFMT in a seated position. After each tDCS session PFMF was reevaluated. Twenty young healthy women (aged 23.4 ± 1.7years; body mass index 21.7 ± 2.2kg/m2) were included. No difference was observed in power, endurance, and intravaginal pressure of PFMF (p > 0.05). The number of sustained contractions improved from 3.0 (2.0-3.5) to 4.0 (3.0-5.0) after active-tDCS (p = 0.0004) and was superior to sham-tDCS (p = 0.01). The number of sustained contractions of PFM improved immediately after a single active-tDCS session, with a difference compared with the post-intervention result of sham-tDCS in healthy young women.

Intraoperative Telestration System in Endoscopic Transsphenoidal Surgery Contributes to Improved Surgical Safety and Efficient Surgical Education

ObjectiveTo evaluate the effectiveness of a “telestration” system in which the mentor annotates the view of the surgical field, for endoscopic transsphenoidal surgery (ETS). MethodsThe use of telestration was evaluated for sellar floor-opening during ETS and for a task performed using ETS simulation training. During ETS, the mentor outlined the opening area of the sella turcica on the monitor and then the trainee surgeon opened the sella, either with the telestration displayed (telestration (+) group, n=8) or without (telestration (-) group, n=7). In the task using an ETS training model, 18 subjects were asked to touch the indicated targets with the forceps, once with the instructions given via telestration and once with verbal instructions only. ResultsDuring ETS, the telestration (+) group had a significantly higher concordance rate between the planned bone window and actual bone window than the telestration (-) group (92.97±4.16% vs. 77.57±10.51%, P=0.014). In the ETS model, the time required to finish the task was significantly less with telestration than with verbal instructions alone (P=0.002). None of the subjects had errors when telestration was used, while subjects made an average of 0.33±0.59 errors and had to re-listen to the instructions 0.27±0.46 times when only verbal instructions were given. ConclusionsThe use of the telestration system during ETS facilitated the communication of the mentor's intentions to the trainee surgeon and contributed to safer, more accurate surgery. The system was also thought to be useful in reducing operative time.

Too Scared to Talk: Managing Selective Mutism in an Abandoned Girl

Selective mutism (SM) is a complex anxiety-related disorder, primarily prevalent in girls, and usually diagnosed in early childhood. The main diagnostic features include persistent failure to speak in some social situations, where there is an expectation for speaking, despite normal or near-normal speech in other social settings. AD, an abandoned girl, about 3-year-old, from a child care institute was referred for a medical examination to a tertiary care pediatric hospital. The major complaints were poor appetite, failure to speak to others, and excessive aloofness. She had no major behavioral difficulties, was cooperative, and complied with all verbal instructions. She would use gestures to communicate. The child was diagnosed with SM and a comprehensive individualized therapeutic plan was implemented. The management plan focused on enhancing attachment, cognitive stimulation, and language skills. As a first step, AD was enrolled in a day care center. An enabling and enriching environment was provided with plentiful opportunities for play and interaction with peers. Defocused communication that involved sitting alongside the child rather than face to face, creating joint attention using tasks that the child enjoyed, not asking direct questions, giving the child adequate time to reply, and continuing with the conversation even if she did not respond verbally was used as the primary treatment strategy. Collaborative teams including pediatricians and mental health professionals can play an integral role in early diagnosis and in overseeing the challenging path of overcoming SM in young children from adverse circumstances.

Implementasi Sistem Navigasi Terintegrasi untuk Pembuatan Petunjuk Jalan di Jalan Juma Gaja, Sikunihan 1, Sikunihan 2, dan Siboras

Road signs are visual or verbal information that provides road users with instructions or directions to help them reach their destination safely and efficiently. Traffic signs can be traffic signs, directional signs, road markings, or verbal instructions given by GPS navigation or road guidance. The purpose of directions is to provide clear information regarding direction, distance and travel route to the desired destination. The aim of this research is to develop effective guidelines for the Juma Gaja, Sikunihan 1, Sikunihan 2 and Siboras areas. By analyzing user needs and integrating GPS technology, we have designed a navigation system that can provide accurate and efficient directions. Field test methodology is used to ensure system effectiveness. The results show that the system implemented has succeeded in providing guidance that is timely and easy to use. The practical implication of this research is increasing mobility and transportation affordability in the study area..

Real-Time Visual Feedback Based on MIMUs Technology Reduces Bowing Errors in Beginner Violin Students.

Violin is one of the most complex musical instruments to learn. The learning process requires constant training and many hours of exercise and is primarily based on a student-teacher interaction where the latter guides the beginner through verbal instructions, visual demonstrations, and physical guidance. The teacher's instruction and practice allow the student to learn gradually how to perform the correct gesture autonomously. Unfortunately, these traditional teaching methods require the constant supervision of a teacher and the interpretation of non-real-time feedback provided after the performance. To address these limitations, this work presents a novel interface (Visual Interface for Bowing Evaluation-VIBE) to facilitate student's progression throughout the learning process, even in the absence of direct teacher intervention. The proposed interface allows two key parameters of bowing movements to be monitored, namely, the angle between the bow and the string (i.e., α angle) and the bow tilt (i.e., β angle), providing real-time visual feedback on how to correctly move the bow. Results collected on 24 beginners (12 exposed to visual feedback, 12 in a control group) showed a positive effect of the real-time visual feedback on the improvement of bow control. Moreover, the subjects exposed to visual feedback judged the latter as useful to correct their movement and clear in terms of the presentation of data. Although the task was rated as harder when performed with the additional feedback, the subjects did not perceive the presence of a violin teacher as essential to interpret the feedback.

Just Keep Spinning? The Impact of Auditory and Somatosensory Cues on Rotary Chair Testing.

The purpose of this study was to determine whether providing realistic auditory or somatosensory cues to spatial location would affect measures of vestibulo-ocular reflex gain in a rotary chair testing (RCT) context. This was a fully within-subject design. Thirty young adults age 18-30 years (16 men, 14 women by self-identification) completed sinusoidal harmonic acceleration testing in a rotary chair under five different conditions, each at three rotational frequencies (0.01, 0.08, and 0.32 Hz). We recorded gain as the ratio of the amplitude of eye movement to chair movement using standard clinical procedures. The five conditions consisted of two without spatial information (silence, tasking via headphones) and three with either auditory (refrigerator sound, tasking via speaker) or somatosensory (fan) information. Two of the conditions also included mental tasking (tasking via headphones, tasking via speaker) and differed only in terms of the spatial localizability of the verbal instructions. We used linear mixed-effects modeling to compare pairs of conditions, specifically examining the effects of the availability of spatial cues in the environment. This study was preregistered on Open Science Framework (https://osf.io/2gqcf/). Results showed significant effects of frequency in all conditions (p < .05), but the only pairs of conditions that were significantly different were those including tasking in one condition but not the other (e.g., tasking via headphones vs. silence). Post hoc equivalence testing showed that the lack of significance in the other comparisons could be confirmed as not meaningfully different. These findings suggest that the presence of externally localizable sensory information, whether auditory or somatosensory, does not affect measures of gain in RCT to any relevant degree. However, these findings also contribute to the increasing body of evidence suggesting that mental engagement ("tasking") does increase gain whether or not it is provided via localizable instructions.