Applied Psychophysiology and Biofeedback最新文献

{"title":"Augmented Reality in Vocal Technique Training: Interactive Visualizations of Breath and Posture Control Using Magic Keys AR.","authors":"Shuang Wan","doi":"10.1007/s10484-026-09786-6","DOIUrl":"https://doi.org/10.1007/s10484-026-09786-6","url":null,"abstract":"<p><p>This study aimed to evaluate the effectiveness of Magic Keys AR as a tool for accelerating vocal learning through synchronized monitoring of breathing, posture, and acoustics. The findings indicate that augmented reality facilitates faster vocal mastery, allowing students to visualize three parameters simultaneously-breathing, posture, and sound. The experiment involved 120 conservatory students aged 18-25 from three Chinese cities, divided into two groups of 60 participants each: the experimental group trained using the Magic Keys AR system, while the control group followed traditional mirror-based instruction. The training lasted 16 weeks. Respiration was measured via plethysmography, body movements were tracked across 37 anatomical points, and voice was recorded in high resolution (96 kHz/24 bit). Students using AR increased phonation duration by 34.1% (up to 16.5 s), while the control group showed a 10.4% increase (up to 13.8 s); the difference was statistically significant (p < 0.001, large effect size: d = 1.07). Vocal instability (jitter) decreased by 28.1% in the AR group versus 9.9% in the control, and shimmer decreased by 31.3% versus 8.2%, respectively. Retention rates reached 91% in the AR group and 68% in the control, with 89% of AR-trained students maintaining skills three months post-training. Machine learning algorithms predicted student success with 84.2% accuracy, identifying proprioceptive awareness (β = 0.34) as the strongest predictor. Conservatories are projected to recover AR investment 2.7 times faster due to reduced vocal strain, accelerated technical mastery, and lower dropout rates.</p>","PeriodicalId":47506,"journal":{"name":"Applied Psychophysiology and Biofeedback","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147718356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Baseline Depressive Symptoms and Heart Rate Variability Indices Predict HRV Biofeedback Outcomes in Young Adults with Depression.","authors":"Chongen Gao, Mara Mather, Hui-Yuan Liao, Kuan-Lin Lee, Yi-Chun Yeh, Chiao-Li Khale Ke, Cheng-Fang Yen, I-Mei Lin","doi":"10.1007/s10484-026-09785-7","DOIUrl":"https://doi.org/10.1007/s10484-026-09785-7","url":null,"abstract":"<p><p>Heart rate variability biofeedback (HRVB) has been confirmed to enhance cardiovagal activation and alleviate depressive symptoms in patients with major depressive disorder (MDD). However, it remains unknown which dimensions of depression predict better treatment outcomes following HRVB. This study utilized a randomized controlled trial design. A total of 59 patients with depressive disorder were enrolled and randomly assigned to either the HRVB group or the relaxation training (RT) group. Both groups receive 60-min training sessions twice weekly for 10 sessions over five weeks. Psychological variables (depression and anxiety) and lead II electrocardiogram (ECG) were collected at pre-test and post-test. ECG data were converted into HRV indices. Two-way mixed-design analyses of variances were conducted to examine the Group (HRVB vs. RT) × Time (pre-test vs. post-test transfer) interaction effects on psychological outcomes and HRV indices. In addition, participants in the HRVB group were classified as responders (n = 10) or non-responders (n = 14) based on change in the root mean square of successive differences between normal heartbeats (RMSSD) following HRVB. Differences in demographic and psychological variables between these subgroups were further examined. (1) Both groups showed significant reductions in depression and anxiety over time; however, no significant differences between groups were observed. (2) At the transfer stage, the HRVB group demonstrated significant increases in HRV indices from pre-test rest stage to post-test transfer stage. (3) Within the HRVB group, responders exhibited significantly lower levels of depressive symptoms (including loss of pleasure, loss of interest, worthlessness, and loss of energy) and lower parasympathetic activity compared with non-responders. HRVB not only alleviated depression and anxiety symptoms but also enhanced autonomic nervous system activity. Moreover, patients who derived the greatest benefit from HRVB tended to exhibit more favorable psychological features at pre-test. These findings may inform the development of personalized and evidence-based psychological interventions for patients with depressive disorders.</p>","PeriodicalId":47506,"journal":{"name":"Applied Psychophysiology and Biofeedback","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147718330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Impact of Modifying 3D Environments: The Role of Presence in VR Breathing Exercises.","authors":"Patrícia Szabó, Cecilia Sik-Lanyi, Renáta Cserjési","doi":"10.1007/s10484-026-09781-x","DOIUrl":"10.1007/s10484-026-09781-x","url":null,"abstract":"<p><p>This research project investigates the impact of virtual reality (VR) on rehabilitation through a comparative analysis of three distinct 3D environments. Developed as serious games on the Oculus Quest 2 VR platform, these environments aim to enhance breathing techniques for individuals with conditions like Chronic Obstructive Pulmonary Disease (COPD) and post-COVID symptoms, while also addressing anxiety management. The games focus on teaching and practicing specific techniques including Box Breathing, 4-7-8 Breathing, and Bhramari pranayama, known for their relaxation and stress-reduction benefits. Preliminary findings indicate that VR environments and traditional settings for guided breathing techniques without external stimuli are equally effective in reducing anxiety and inducing physiological changes. In a comprehensive study, we observed that the happy environment consistently led to the greatest reduction in STAI-S scores compared to neutral and dark environments. These results underscore VR's potential, particularly in environments fostering positive emotional responses, to augment stress reduction in therapeutic settings.</p>","PeriodicalId":47506,"journal":{"name":"Applied Psychophysiology and Biofeedback","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147640264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: Phonation-Based Spiritual Practices and Autonomic Regulation: A Systematic Review and Meta-Analysis Testing the S-CN Model.","authors":"Baghdad Kebdani","doi":"10.1007/s10484-026-09784-8","DOIUrl":"10.1007/s10484-026-09784-8","url":null,"abstract":"","PeriodicalId":47506,"journal":{"name":"Applied Psychophysiology and Biofeedback","volume":" ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147628964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Role of Regular Meditation Practice, Trait Mindfulness, and Psychological Characteristics in Affective Startle Modulation: A Psychophysiological Study.","authors":"Meenakshi Shukla, Niti Upadhyay, Vishnukant Tripathi, Veena Kumari, Rakesh Pandey","doi":"10.1007/s10484-026-09782-w","DOIUrl":"10.1007/s10484-026-09782-w","url":null,"abstract":"<p><p>Meditation practices, including mindfulness, are linked with adaptive emotional processing and regulation. Although startle response modulation among meditators has been studied using habituation and prepulse-induced startle inhibition paradigms, affective startle modulation, which refers to potentiation by negative stimuli and attenuation by positive stimuli (both relative to neutral stimuli), remains unexplored. This study examined how regular meditation practice, dispositional mindfulness, and affective difficulties influence affective modulation of the acoustic startle reflex. Seventeen meditators and thirty non-meditators were exposed to pleasant, neutral, and unpleasant images while their eye-blink startle responses were recorded. Participants also completed self-report measures of dispositional mindfulness, alexithymia, emotion regulation difficulties, depression, anxiety, and stress. Meditators, compared to non-meditators, reported higher dispositional mindfulness, particularly in the Observing and Non-reactivity domains, lower stress, and fewer difficulties in goal-oriented behaviour during negative emotions; they also had longer startle onset latencies, potentially indicating lower state anxiety, across the entire experiment regardless of the valence of visual images. Higher dispositional mindfulness correlated with lower scores on alexithymia, emotion regulation difficulties, depression, anxiety, and stress across the pooled sample. These findings suggest that mindfulness, whether cultivated through meditation or as a trait, reduces negative emotionality, highlighting its potential for emotional regulation and stress reduction.</p>","PeriodicalId":47506,"journal":{"name":"Applied Psychophysiology and Biofeedback","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147610318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Relationship Between Psychological Factors and Postural Performance under Different Biofeedback Conditions.","authors":"Rosangela Lopes John, Thiago Lemos, Arthur de Sá Ferreira, Luis Aureliano Imbiriba, Fabio Vieira Dos Anjos","doi":"10.1007/s10484-026-09779-5","DOIUrl":"10.1007/s10484-026-09779-5","url":null,"abstract":"<p><p>The postural biofeedback technique has been of potential interest to postural rehabilitation, as it promotes conscious postural control and reduces sway, ensuring body stability. However, it remains unclear whether the enhanced awareness of postural performance with biofeedback influences psychological states. Existing research suggests that psychological states such as confidence and anxiety regarding postural and fall risk may impact postural control. This study investigated the effects of two postural biofeedback techniques on balance confidence and anxiety, as well as the association between posturographic parameters and confidence and anxiety, respectively. Twenty-six participants were tested in three 60s tasks on a force platform: (1) eyes open (EO); (2) posturographic biofeedback (BF-COP), requiring participants to keep the centre of pressure (COP) close to a visual target; (3) laser biofeedback (BF-Laser), involving pointing a handheld laser at the same target with right wrist movements. The following COP parameters were computed: sway area, standard deviation, mean velocity and mean frequency in the antero-posterior (AP) and medio-lateral (ML) directions. Balance confidence and anxiety were assessed after each task using visual analog scales (0–100). ANOVA revealed lower balance confidence in the BF-COP task (mean ± SD; 73 ± 22%) compared to EO (86 ± 22%). For the anxiety scale, no significant differences were found between EO (21 ± 33%), BF-COP (28 ± 25%) and BF-Laser (24 ± 30%). For the BF-COP task, sway area, ML standard deviation, and ML mean velocity showed a negative moderate correlation with balance confidence, with greater body sway corresponding to lower confidence. Current findings suggest that psychological factors may be associated with postural stability changes during the postural biofeedback.</p>","PeriodicalId":47506,"journal":{"name":"Applied Psychophysiology and Biofeedback","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147515721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Just a Minute: A Pupil-Based Machine Learning Approach to Depression Screening.","authors":"Jung Joo Lee, Young Il Cho","doi":"10.1007/s10484-026-09780-y","DOIUrl":"10.1007/s10484-026-09780-y","url":null,"abstract":"<p><p>This study aimed to develop a pupillometry indicator-based machine learning model for depression screening based on pupillary time-series responses to images. Forty participants completed an experiment in which they were presented with a total of 55 emotional stimuli. Pupil responses to each stimulus were treated as independent samples per participant, from which a total of 45 pupil-based features were extracted. A t-test was performed to compare pupil-based features between the highest and lowest 10% groups, as determined by depression scores on the Korean version of the Center for Epidemiologic Studies Depression Scale. The images were subsequently ranked based on their effectiveness in distinguishing between these groups. The results demonstrated that maximum prediction accuracy was achieved using only the top two ranked stimuli. This stimulus optimization process significantly reduced the number of stimuli and measurement duration to under one minute while maintaining high predictive performance. Synthetic minority oversampling technique was applied to address the severe imbalance between the depressed and non-depressed groups. The model was trained and evaluated using a light gradient boosting machine classifier with group 3-fold cross-validation. The optimized model exhibited excellent predictive performance, achieving an accuracy of 89.0%, precision of 80.0%, recall of 75.0%, F1 score of 0.74, specificity of 93.0%, and an area under the curve of 0.85. This model can effectively screen individuals at risk for depression under concise measurement conditions, suggesting future clinical applications as an accessible pupillometry indicator-based tool for depression screening.</p>","PeriodicalId":47506,"journal":{"name":"Applied Psychophysiology and Biofeedback","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147504899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phonation-Based Spiritual Practices and Autonomic Regulation: A Systematic Review and Meta-Analysis Testing the S-CN Model.","authors":"Baghdad Kebdani","doi":"10.1007/s10484-026-09778-6","DOIUrl":"10.1007/s10484-026-09778-6","url":null,"abstract":"<p><p>Resonant nasal phonation is hypothesized to modulate autonomic function via vagal pathways, offering a potential non-pharmacological self-regulation strategy. A comprehensive efficacy synthesis and testable neuro-acoustic mechanism are lacking. This study introduces the Spirituo-Cardio-Neurology (S-CN) framework. To quantify the efficacy of phonation-based protocols on vagal tone (HRV-RMSSD, H2) and stress (cortisol, H3) and generate preliminary evidence for a mechanistic hypothesis (H1) linking acoustic properties to autonomic outcomes. A PRISMA 2020-compliant systematic review of 9248 records identified 123 studies. A random-effects meta-analysis of 23 high-quality trials (N = 1247) evaluated primary outcomes. A complementary computational linguistic analysis quantified nasal phoneme density using Quranic Tajwid recitation as a standardized, high-fidelity acoustic model. A meta-regression analysis controlled for respiratory parameters to isolate a unique phonetic effect. Meta-analysis confirmed that phonation-based protocols significantly enhance vagal tone (H2: RMSSD SMD = 0.92, 95% CI [0.65, 1.19], p < 0.001) and reduce cortisol (H3: SMD = − 0.54, 95% CI [− 0.72, − 0.36], p < 0.001 p < 0.001). The computational analysis established the high nasal phoneme density of the model corpus. Crucially, the meta-regression yielded a conservative, adjusted estimate for the unique association between nasal phoneme exposure and vagal tone enhancement (β = 0.42, p < 0.01), offering preliminary quantitative support for the proposed neuro-acoustic mechanism (H1) and grounding future biofeedback applications.</p>","PeriodicalId":47506,"journal":{"name":"Applied Psychophysiology and Biofeedback","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147475248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Smart HRV-Guided Respiratory Biofeedback System for Combined Respiratory and Psychological Recovery During COVID-19 Oxygen Weaning.","authors":"Mohanad A Deif, Mohamed A Hafez, Sally Mohammed Farghaly Abdelaliem, Mohammad Khishe","doi":"10.1007/s10484-026-09770-0","DOIUrl":"10.1007/s10484-026-09770-0","url":null,"abstract":"<p><p>The COVID-19 pandemic has placed substantial pressure on intensive care units (ICUs), particularly in managing patients who require oxygen therapy and must be safely weaned from it. This study evaluated an HRV-guided respiratory biofeedback program as a non-pharmacological method to reduce respiratory discomfort and psychological distress during oxygen weaning in COVID-19 patients. A non-randomized quasi-experimental study was conducted with 80 ICU patients at Albehera Hospital, Beheira, Egypt. Patients were allocated to either a biofeedback group ([Formula: see text]) or a control group ([Formula: see text]). Both groups received standard oxygen-weaning care and routine nursing support, but only the biofeedback group received structured sessions combining diaphragmatic breathing with heart rate variability based respiratory training. The Respiratory Distress Observation Scale (RDOS) and the Depression Anxiety Stress Scale (DASS-21) were administered before and after the intervention. After adjusting for baseline scores, the biofeedback group demonstrated a markedly larger reduction in RDOS scores (from 14.48 to 4.23; [Formula: see text]) and significant improvements in DASS-21 depression, anxiety, and stress subscales ([Formula: see text]), whereas the control group showed only minimal changes. These findings suggest that HRV-guided respiratory biofeedback may enhance both respiratory comfort and psychological well-being during oxygen weaning in COVID-19 patients and could serve as a valuable adjunct to standard ICU care. Further randomized controlled trials are warranted to confirm these results and guide clinical implementation.</p>","PeriodicalId":47506,"journal":{"name":"Applied Psychophysiology and Biofeedback","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147469458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Task-Based EEG Neurofeedback Enhances Training Effects in Dynamic Visual Search.","authors":"Xiao Yang, Xiaoyu Wang, Zhaonan Ma, Jian Yang, Chao Guo, Zhanbo Feng, Han Xu, Yubo Zhao, Fengyu Cong","doi":"10.1007/s10484-026-09776-8","DOIUrl":"10.1007/s10484-026-09776-8","url":null,"abstract":"<p><p>Dynamic visual search is essential for efficient performance in high-demand perceptual and operational environments. However, effectively improving such a higher-order cognitive ability remains challenging. Although conventional training approaches based on repeated practice can enhance visual search performance, their effectiveness tends to reach a ceiling, thereby constraining further development. To address this limitation, the present study developed a task-based EEG neurofeedback (NF) paradigm by integrating parietal beta upregulation training into the moving object discrimination (MOD) paradigm, a dynamic visual search task. We then conducted well-designed training procedures with 88 healthy participants randomly assigned to the NF group (task-based NF training), the Sham group (sham-feedback training), and the Control group (no training). Results showed that (i) the NF group exhibited significantly greater increases in parietal beta power both within and across training sessions, compared to the Sham group; and (ii) the NF group achieved significantly greater reductions in response time (RT) during the MOD task compared to both the Sham and Control groups. The enhanced training effects likely resulted from the direct modulation of task-relevant neural activity and the promotion of sustained attentional engagement during task execution through parietal beta upregulation. Overall, these findings underscore the utility of task-based NF in facilitating more effective training in cognitively demanding contexts and provide a promising framework for developing high-efficiency, domain-specific training interventions. Nevertheless, the present findings should be interpreted with caution due to the absence of a conventional practice-based training comparison and limited participant diversity.</p>","PeriodicalId":47506,"journal":{"name":"Applied Psychophysiology and Biofeedback","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147357114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}