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Chen PY, Su IC, Shih CY, Liu YC, Su YK, Wei L, Luh HT, Huang HC, Tsai PS, Fan YC, Chiu HY. Effects of Neurofeedback on Cognitive Function, Productive Activity, and Quality of Life in Patients With Traumatic Brain Injury: A Randomized Controlled Trial. Neurorehabil Neural Repair 2023:15459683231170539. [PMID: 37125901 DOI: 10.1177/15459683231170539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
BACKGROUND Cognitive impairment is common in patients with traumatic brain injury (TBI). Studies that have examined the effectiveness of neurofeedback (NFB) on cognitive function following TBI have had poor study designs and small sample sizes. OBJECTIVES This randomized controlled trial assessed the effects of low-resolution tomography Z-score NFB (LZNFB) and theta/beta NFB on cognitive impairment, return to productive activity, and quality of life in patients with TBI. METHODS We randomly assigned 87 patients with TBI with cognitive impairment to LZNFB, theta/beta NFB, or usual care (UC) groups. Patients in both NFB groups received weekly 60-minute treatment for 10 weeks, and those in the control group received UC and telephone interviews for 10 weeks. The primary outcome was cognitive function as measured by performance on cognitive tasks; the secondary outcomes included productive activity and quality of life based on the Community Integration Questionnaire-revised (CIQ-R) and the Quality of Life after Brain Injury (QOLIBRI), respectively, at baseline and immediately after the last intervention. RESULTS The LZNFB group exhibited significantly greater improvements in immediate recall, delayed recall, recognition memory, and selective attention compared with the UC group; the theta/beta NFB group exhibited improvements in only immediate memory and selective attention (P < .05). The total CIQ-R scores of the LZNFB group after treatment were significantly improved than those of the UC group were. CONCLUSION Consecutive LZNFB achieved therapeutic effects in memory, attention, and productive activity, whereas theta/beta NFB improved memory and attention in patients with TBI.This trial was prospectively registered at ClinicalTrial.gov (registration number: NCT03515317; https://clinicaltrials.gov/ct2/show/NCT03515317).
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Affiliation(s)
- Pin-Yuan Chen
- Department of Neurosurgery, Chang Gung Memorial Hospital Keelung Branch, Keelung City, Taiwan
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan City, Taiwan
- Community Medicine Research Center, Chang Gung Memorial Hospital, Keelung Branch, Keelung City, Taiwan
| | - I-Chang Su
- Taipei Neuroscience Institute, Taipei Medical University, Taipei City, Taiwan
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei City, Taiwan
- Department of Neurosurgery, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
| | - Chun-Ying Shih
- School of Nursing, College of Nursing, Taipei Medical University, Taipei City, Taiwan
| | - Yen-Chun Liu
- School of Nursing, College of Nursing, Taipei Medical University, Taipei City, Taiwan
| | - Yu-Kai Su
- Taipei Neuroscience Institute, Taipei Medical University, Taipei City, Taiwan
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei City, Taiwan
- Department of Neurosurgery, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
- Graduate Institute of Clinical Medicine, Taipei Medical University, Taipei, Taiwan
| | - Li Wei
- Taipei Neuroscience Institute, Taipei Medical University, Taipei City, Taiwan
- Division of Neurosurgery, Department of Surgery, Wan Fang Hospital, Taipei Medical University, Taipei City, Taiwan
- Graduate Institute of Injury Prevention and Control, Taipei Medical University, Taipei City, Taiwan
| | - Hui-Tzung Luh
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei City, Taiwan
- Division of Neurosurgery, Department of Surgery, National Taiwan University Hospital Hsin-Chu Branch, Hsin-Chu City, Taiwan
| | - Hui-Chuan Huang
- School of Nursing, College of Nursing, Taipei Medical University, Taipei City, Taiwan
| | - Pei-Shan Tsai
- School of Nursing, College of Nursing, Taipei Medical University, Taipei City, Taiwan
| | - Yen-Chun Fan
- School of Public Health, College of Public Health, Taipei Medical University, Taipei City, Taiwan
| | - Hsiao-Yean Chiu
- School of Nursing, College of Nursing, Taipei Medical University, Taipei City, Taiwan
- Department of Nursing, Taipei Medical University Hospital, Taipei City, Taiwan
- Research Center of Sleep Medicine, College of Medicine, Taipei Medical University, Taipei City, Taiwan
- Research Center of Sleep Medicine, Taipei Medical University Hospital, Taipei City, Taiwan
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Individual Alpha Peak Frequency, an Important Biomarker for Live Z-Score Training Neurofeedback in Adolescents with Learning Disabilities. Brain Sci 2021; 11:brainsci11020167. [PMID: 33525458 PMCID: PMC7911657 DOI: 10.3390/brainsci11020167] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/22/2021] [Accepted: 01/24/2021] [Indexed: 01/19/2023] Open
Abstract
Learning disabilities (LDs) have an estimated prevalence between 5% and 9% in the pediatric population and are associated with difficulties in reading, arithmetic, and writing. Previous electroencephalography (EEG) research has reported a lag in alpha-band development in specific LD phenotypes, which seems to offer a possible explanation for differences in EEG maturation. In this study, 40 adolescents aged 10–15 years with LDs underwent 10 sessions of Live Z-Score Training Neurofeedback (LZT-NF) Training to improve their cognition and behavior. Based on the individual alpha peak frequency (i-APF) values from the spectrogram, a group with normal i-APF (ni-APF) and a group with low i-APF (li-APF) were compared in a pre-and-post-LZT-NF intervention. There were no statistical differences in age, gender, or the distribution of LDs between the groups. The li-APF group showed a higher theta absolute power in P4 (p = 0.016) at baseline and higher Hi-Beta absolute power in F3 (p = 0.007) post-treatment compared with the ni-APF group. In both groups, extreme waves (absolute Z-score of ≥1.5) were more likely to move toward the normative values, with better results in the ni-APF group. Conversely, the waves within the normal range at baseline were more likely to move out of the range after treatment in the li-APF group. Our results provide evidence of a viable biomarker for identifying optimal responders for the LZT-NF technique based on the i-APF metric reflecting the patient’s neurophysiological individuality.
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Meeuwsen KD, Groeneveld KM, Walker LA, Mennenga AM, Tittle RK, White EK. Z-score neurofeedback, heart rate variability biofeedback, and brain coaching for older adults with memory concerns. Restor Neurol Neurosci 2021; 39:9-37. [PMID: 33386829 PMCID: PMC7990441 DOI: 10.3233/rnn-201053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND The three-month, multi-domain Memory Boot Camp program incorporates z-score neurofeedback (NFB), heart rate variability (HRV) biofeedback, and one-on-one coaching to teach memory skills and encourage behavior change in diet, sleep, physical fitness, and stress reduction. OBJECTIVE This prospective trial evaluates the Memory Boot Camp program for adults ages 55 to 85 with symptoms of Mild Cognitive Impairment (MCI) and subjective memory complaints. METHODS Participants were evaluated via the Montreal Cognitive Assessment (MoCA), NeuroTrax Global Cognitive Score, measures of anxiety, depression, sleep, quality of life, quantitative electroencephalography (QEEG), and HRV parameters at four timepoints: baseline, pre-program, post-program, and follow-up. The trial included a three-month waiting period between baseline and pre-program, such that each participant acted as their own control, and follow-up took place six months after completion of the program. RESULTS Participants' MoCA scores and self-reported measures of anxiety, depression, sleep quality, and quality of life improved after treatment, and these changes were maintained at follow-up. Physiological changes in HRV parameters after treatment were not significant, however, breathing rate and QEEG parameters were improved at post-program and maintained at follow-up. Finally, participants' improvement in MoCA score over the treatment period was correlated with their improvement in two brain oscillation parameters targeted by the z-score NFB protocol: relative power of delta and relative power of theta. CONCLUSIONS Trial results suggest that the Memory Boot Camp program is a promising treatment strategy for older adults with symptoms of MCI and subjective memory complaints.
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Coben R, Hammond DC, Arns M. 19 Channel Z-Score and LORETA Neurofeedback: Does the Evidence Support the Hype? Appl Psychophysiol Biofeedback 2020; 44:1-8. [PMID: 30255461 PMCID: PMC6373269 DOI: 10.1007/s10484-018-9420-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Neurofeedback is a well-investigated treatment for ADHD and epilepsy, especially when restricted to standard protocols such as theta/beta, slow cortical potentials and sensori-motor rhythm neurofeedback. Advances in any field are welcome and other techniques are being pursued. Manufacturers and clinicians are marketing ‘superior’ neurofeedback approaches including 19 channel Z-score neurofeedback (ZNFB) and 3-D LORETA neurofeedback (with or without Z-scores; LNFB). We conducted a review of the empirical literature to determine if such claims were warranted. This review included the above search terms in Pubmed, Google scholar and any references that met our criteria from the ZNFB publication list and was restricted to group based studies examining improvement in a clinical population that underwent peer review (book chapters, magazine articles or conference presentations are not included since these are not peer reviewed). Fifteen relevant studies emerged with only six meeting our criterion. Based on review of these studies it was concluded that empirical validation of these approaches is sorely lacking. There is no empirical data that supports the notion that 19-channel z-score neurofeedback is effective or superior. The quality of studies for LNFB was better compared to ZNFB and some suggestion for efficacy was demonstrated for ADHD and Tinnitus distress. However, these findings need to be replicated, extended to other populations and have yet to show any “superiority.” Our conclusions continue to emphasize the pervasive lack of evidence supporting these approaches to neurofeedback and the implications of this are discussed.
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Affiliation(s)
- Robert Coben
- Integrated Neuroscience Services, 92 W. Sunbridge Drive, Fayetteville, AR, 72701, USA
| | | | - Martijn Arns
- Department of Experimental Psychology, Utrecht University, Utrecht, The Netherlands. .,Research Institute Brainclinics, Nijmegen, The Netherlands. .,neuroCare Group, Munich, Germany.
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Groeneveld KM, Mennenga AM, Heidelberg RC, Martin RE, Tittle RK, Meeuwsen KD, Walker LA, White EK. Z-Score Neurofeedback and Heart Rate Variability Training for Adults and Children with Symptoms of Attention-Deficit/Hyperactivity Disorder: A Retrospective Study. Appl Psychophysiol Biofeedback 2019; 44:291-308. [PMID: 31119405 PMCID: PMC6834758 DOI: 10.1007/s10484-019-09439-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
ADHD is a common condition that causes suffering for those affected and economic loss for society at large. The current standard treatment for ADHD includes stimulant medications, which are not effective for all patients, may include side effects, and can be non-medically misused. Z-score neurofeedback (NFB) and heart rate variability (HRV) biofeedback are alternative treatment strategies that have been associated with Attention-Deficit/Hyperactivity Disorder (ADHD) symptom improvement. We utilized a retrospective pre-post study design to quantify the change in clients' ADHD symptoms after combined NFB + HRV treatment (which included simultaneous z-score training at four sites). We also assessed whether relevant physiological measures changed in accordance with the protocol, which would be consistent with effective NFB + HRV training. Adults (n = 39) and children (n = 100) with Borderline or Clinical ADHD classifications by the Achenbach System of Empirically Based Assessment (ASEBA) received 30 sessions of NFB + HRV training. Measures were compared before and after treatment for the ASEBA, the Integrated Visual and Auditory Continuous Performance Test (IVA), ADHD medication use, HRV and breathing parameters, and quantitative electroencephalogram (QEEG) parameters. Average ASEBA Attention-Deficit/Hyperactive Problems score improved after treatment for adults and children (p < 0.0001), with Cohen effect sizes (dz) of -1.21 and -1.17, respectively. 87.2% of adults and 80.0% of children experienced improvements of a magnitude greater than or equal to the Minimal Clinically Important Difference. After treatment, 70.8% of adults and 52.8% of children who began in the ASEBA Clinical range, and 80.0% of adults and 63.8% of children who began in the ASEBA Borderline range, were classified in the Normal range. IVA scores also improved after treatment. Changes in HRV and breathing pattern after treatment were consistent with the protocol. QEEG parameters after treatment were closer to the age-based normative mean, which is consistent with effective z-score NFB training.
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Affiliation(s)
| | - Anna M. Mennenga
- Neurocore, 201 Monroe Avenue NW Suite 300, Grand Rapids, MI 49503 USA
| | | | - Rachel E. Martin
- Neurocore, 201 Monroe Avenue NW Suite 300, Grand Rapids, MI 49503 USA
| | - Rachel K. Tittle
- Neurocore, 201 Monroe Avenue NW Suite 300, Grand Rapids, MI 49503 USA
| | - Kyle D. Meeuwsen
- Neurocore, 201 Monroe Avenue NW Suite 300, Grand Rapids, MI 49503 USA
| | - Linda A. Walker
- Neurocore, 201 Monroe Avenue NW Suite 300, Grand Rapids, MI 49503 USA
- Saybrook University, Alameda, CA USA
| | - Elyse K. White
- Neurocore, 201 Monroe Avenue NW Suite 300, Grand Rapids, MI 49503 USA
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Wigton NL, Krigbaum G. Attention, Executive Function, Behavior, and Electrocortical Function, Significantly Improved With 19-Channel Z-Score Neurofeedback in a Clinical Setting: A Pilot Study. J Atten Disord 2019; 23:398-408. [PMID: 25823743 DOI: 10.1177/1087054715577135] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Neurofeedback (NF) is gaining recognition as an evidence-based intervention grounded in learning theory, and 19-channel z-score NF (19ZNF) is a new NF model. This pilot study sought to evaluate the efficacy of 19ZNF in a clinical setting. METHOD Outcome measures framed groups such that 19ZNF was evaluated, as it relates to the neuropsychological constructs of attention ( n = 10), executive function ( n = 12), behavior ( n = 14), and electrocortical functioning ( n = 21). One-tailed t tests compared pre-post difference scores. RESULTS For all pre-post comparisons, the direction of change was in the predicted direction, and differences were statistically significant ( p = .000 to p = .008, effect sizes 1.29 to 3.42). CONCLUSION Results suggest 19ZNF improved attention, executive function, behavior, and electrocortical function. This study provides beginning evidence of 19ZNF's efficacy, adds to what is known about 19ZNF, and offers an innovative approach for using quantitative electroencephalographic (QEEG) metrics as outcome measures.
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Affiliation(s)
- Nancy L Wigton
- 1 Grand Canyon University, Phoenix, AZ, USA.,2 Applied Neurotherapy Center, Scottsdale, AZ, USA
| | - Genomary Krigbaum
- 1 Grand Canyon University, Phoenix, AZ, USA.,3 Marian University College of Osteopathic Medicine, Indianapolis, IN, USA
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