Anxiety

Anxiety disorders and stress management: neurofeedback protocols, brain training techniques, and clinical approaches for reducing worry, tension, and panic.

Blog Articles

Research Papers

Showing 6 of 71

A new form of neurotherapy for a patient with anxiety disorder and anomic aphasia after neurosurgery for a ruptured brain aneurysm post-COVID-19

Morga, Rafał, Góral-Półrola, Jolanta, Goździewska, Małgorzata, Krupa, Kamil, Pąchalska, Maria (2023) · Annals of agricultural and environmental medicine: AAEM

INTRODUCTION AND OBJECTIVE: The aim of this study is to evaluate the effectiveness of a new, neuromarker-based form of neurotherapy for a patient with anxiety disorders and anomic aphasia after a neurosurgical operation for a ruptured brain aneurysm of the left middle cerebral artery (MCA), detected after COVID-19. CASE REPORT: A 78-year-old right-handed patient, not previously treated for any chronic diseases except stage II hypertension, contracted COVID-19, confirmed by real time RT- PCR. He was treated on an outpatient basis. Two months later, he developed an unusually severe headache and disorientation. A ruptured brain aneurysm of the left MCA was diagnosed. The patient underwent a neurosurgical operation - clipping- very well, with no neurological or neuropsychiatric disorders, except for mild aphasia and occasional anxiety attacks. Four weeks after surgery, anxiety disorder and mild aphasia worsened. High levels of anxiety on the Hospital Anxiety and Depression (HAD) Scale, and mild anomic aphasia in the Boston Naming Test (BNT) was found. A functional neuromarker of anxiety in comparision to a normative database (Human Brain Index, HBI) was detected. The patient was offered a new, neuromarker-based form of neurotherapy, which proved effective in reducing the disorders. The patient improved in social communication and is gradually returning to social activities. CONCLUSION: In patients with anxiety disorders, anomic aphasia and related difficulties in social functioning after aSAH, especially after COVID-19, multidimensional diagnosis and therapy, preferably based on functional neuromarkers, is needed. HBI methodology can be successfully used in the neurodiagnosis and implementation of individualized neurotherapy for such patients.

View Full Paper →

Effectiveness of Biofeedback in Individuals with Awake Bruxism Compared to Other Types of Treatment: A Systematic Review

Vieira, Maryllian de Albuquerque, Oliveira-Souza, Ana Izabela Sobral de, Hahn, Gesa, Bähr, Luisa, Armijo-Olivo, Susan, Ferreira, Ana Paula de Lima (2023) · International Journal of Environmental Research and Public Health

Excessive masticatory muscle activity is generally present in awake bruxism, which is related to increased anxiety and stress. It has been hypothesized that biofeedback could potentially manage awake bruxism, however, its effectiveness has not been empirically analyzed in a systematic manner. Therefore, this systematic review was designed to determine the effectiveness of biofeedback compared to other therapies in adults with awake bruxism. Extensive searches in five databases looking for randomized controlled trials (RCTs) that included biofeedback to manage awake bruxism were targeted. The risk of bias (RoB) assessment was conducted using the Cochrane RoB-2 tool. Overall, four studies were included in this systematic review, all of which used the electromyographic activity of the masticatory muscles during the day and night as the main endpoint. Auditory and visual biofeedback could reduce the excessive level of masticatory muscle activity in a few days of intervention. The majority of the included studies had a high RoB and only one study had a low RoB. The standardization of the biofeedback protocols was also inconsistent, which makes it difficult to establish the ideal protocol for the use of biofeedback in awake bruxism. Thus, it is proposed that future studies seek to reduce methodological risks and obtain more robust samples.

View Full Paper →

Effects of occupational therapy on quality of life in breast cancer patients: A systematic review and meta-analysis

He, Kang, Jiang, Junjie, Chen, Mengmeng, Wang, Taiwei, Huang, Xuemiao, Zhu, Ruiting, Zhang, Zhiyuan, Chen, Junyu, Zhao, Lijing (2023) · Medicine

BACKGROUND: The objective was to discuss the impact of occupational therapy on different domains of quality of life in breast cancer patients. We performed a literature search to identify articles published before June 27, 2023, using the following databases: PubMed, Embase, Web of Science, Cochrane Library, and Scopus. OBJECTIVE: The objective was to discuss the impact of occupational therapy on different domains of quality of life in breast cancer patients. DATA SOURCES: We performed a literature search to identify articles published before June 27, 2023, using the following databases: PubMed, Embase, Web of Science, Cochrane Library, and Scopus. METHODS: This study was reported following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. Randomized controlled trials that reported the effects of occupational therapy on quality of life in breast cancer patients were identified. Two reviewers independently assessed eligibility, extracted data, and determined risks of bias. Pooled standardized mean differences (SMDs) with 95% confidence intervals (CIs) were estimated using random-effects meta-analyses. Galbraith plots, meta-regression analysis, subgroup analysis, and sensitivity analysis were used to identify heterogeneity in treatment effects. RESULTS: Eight studies were included, with a total of 543 patients. The experimental group exhibited better global health (pooled SMD = 0.640, 95% CI = 0.251-1.028, P = .001), physical health (pooled SMD = 0.640, 95% CI = 0.251-1.028, P = .019), social health (pooled SMD = 0.251, 95% CI = 0.011-0.490, P = .040), and cognitive function (pooled SMD = 0.863, 95% CI = 0.266-1.460, P = .05) and improve fatigue (pooled SMD = -0.389, 95% CI = -0.586 to -0.192, P = .000), and role function (pooled SMD = 0.287, 95% CI = 0.029-0.546, P = .029) than the control group. The 2 groups exhibited comparable emotional health (pooled SMD = 0.243, 95% CI = -0.051 to 0.536, P = .105) and pain (pooled SMD = -0.312, 95% CI = -0.660 to 0.036, P = .079). CONCLUSION: The current evidence shows that occupational therapy can improve the quality of life of breast cancer patients, especially their global health, physical health, social health, cognitive function, fatigue, and role function.

View Full Paper →

Neurofeedback for post-traumatic stress disorder: systematic review and meta-analysis of clinical and neurophysiological outcomes

Askovic, Mirjana, Soh, Nerissa, Elhindi, James, Harris, Anthony W. F. (2023) · European Journal of Psychotraumatology

Background: Posttraumatic stress disorder (PTSD) is a debilitating condition affecting millions of people worldwide. Existing treatments often fail to address the complexity of its symptoms and functional impairments resulting from severe and prolonged trauma. Electroencephalographic Neurofeedback (NFB) has emerged as a promising treatment that aims to reduce the symptoms of PTSD by modulating brain activity.Objective: We conducted a systematic review and meta-analysis of ten clinical trials to answer the question: how effective is NFB in addressing PTSD and other associated symptoms across different trauma populations, and are these improvements related to neurophysiological changes?Method: The review followed the Preferred Reporting Items for Systematic Reviews and Meta analyses guidelines. We considered all published and unpublished randomised controlled trials (RCTs) and non-randomised studies of interventions (NRSIs) involving adults with PTSD as a primary diagnosis without exclusion by type of trauma, co-morbid diagnosis, locality, or sex. Ten controlled studies were included; seven RCTs and three NRSIs with a total number of participants n = 293 (128 male). Only RCTs were included in the meta-analysis (215 participants; 88 male).Results: All included studies showed an advantage of NFB over control conditions in reducing symptoms of PTSD, with indications of improvement in symptoms of anxiety and depression and related neurophysiological changes. Meta-analysis of the pooled data shows a significant reduction in PTSD symptoms post-treatment SMD of -1.76 (95% CI -2.69, -0.83), and the mean remission rate was higher in the NFB group (79.3%) compared to the control group (24.4%). However, the studies reviewed were mostly small, with heterogeneous populations and varied quality.Conclusions: The effect of NFB on the symptoms of PTSD was moderate and mechanistic evidence suggested that NFB leads to therapeutic changes in brain functioning. Future research should focus on more rigorous methodological designs, expanded sample size and longer follow-up.

View Full Paper →

16 Aberrant emotional memory encoding in a transdiagnostic sample of patients with intrusive memories

Smith, Alicia J., Bisby, James A., Dercon, Quentin, Bevan, Anna, Dalgleish, Tim, Hitchcock, Caitlin, Nord, Camilla (2022) · Journal of Neurology, Neurosurgery & Psychiatry

Emotion can affect the way in which experiences are stored in our memory. The dual representation account proposes that traumatic events may be encoded as fragmented sensory-perceptual details without a broader conceptual organisation. This can result in involuntary retrieval of perceptual information triggered by environmental cues without the associated context – a phenomenon referred to as intrusive memories.Currently, it is unknown whether individuals who experience intrusive memories have an underlying vulnerability to aberrant memory encoding, which may lead to the onset or maintenance of symptoms.In Experiment 1, we examined memory recall for neutral and negative images in a transdiagnostic sample of patients with intrusive memories (N = 36), compared to healthy controls (N = 44). Clinical diagnoses in the patient sample included Post-Traumatic Stress Disorder, Major Depressive Disorder, Social Anxiety Disorder, Generalised Anxiety Disorder, Panic Disorder and Other Specified Feeding or Eating Disorders. We excluded participants currently taking psychotropic medication. At encoding, participants viewed neutral, negative and mixed valence image pairs. In the test phase, participants were presented with cues and, if recognised, were asked to recall the associated image. We found a significant group effect, with patients demonstrating impaired item memory for negative images [F(1,280) = 4.435, p = 0.036], relative to healthy controls. This group difference might suggest that individuals with intrusive memories experienced greater sensitivity to negative stimuli, leading to disruptions in memory encoding. Recent work highlights attention maintenance on threat and high levels of threat-related emotional arousal in anxiety- and fear-related disorders which may be one factor driving the disruption to item memory observed in our clinical population.For Experiment 2, in a separate sample of healthy participants (N = 18) we measured eye-tracking behaviour during the encoding phase of the same task. Healthy participants showed greater item memory [F(3, 136 = 2.893, p = 0.0377] and avoidance of fixation [F(1, 110) = 4.898, p = 0.029] on highly arousing, negative stimuli relative to neutral. This might suggest that a shift in attention away from negative stimuli prevents item memory impairments for emotional information.Our future work will identify biological factors driving attentional biases and higher emotional arousal in clinical populations.

View Full Paper →

Effect of neurofeedback therapy on neurological post-COVID-19 complications (A pilot study)

Orendáčová, Mária, Kvašňák, Eugen, Vránová, Jana (2022) · PloS One

OBJECTIVE: Anxiety, fatigue and depression are common neurological manifestations after COVID-19. So far, post-COVID complications were treated by rehabilitation, oxygen therapy and immunotherapy. Effects of neurofeedback on post-COVID complications and their potential interrelatedness have not been studied yet. In this pilot study, we investigated the effectiveness of neurofeedback (Othmer method) for treatment of fatigue, anxiety, and depression after COVID-19. METHODS: 10 participants met inclusion criteria for having positive anamnesis of at least one of the following complications following COVID-19: fatigue, anxiety, and depression which were measured by questionnaires. ANOVA was used for calculating differences in questionnaire score before and after neurofeedback. Pearson's correlation coefficient was used to calculate correlations between anxiety, depression and fatigue. RESULTS: After five neurofeedback sessions, there came to significant reduction of severity of post-COVID anxiety and depression persisting for at least one month. Effect of neurofeedback on fatigue was insignificant. Severity of anxiety, fatigue and depression as well as reductions in depression and fatigue were positively correlated with each other. CONCLUSION: These findings showed effectiveness neurofeedback for reducing anxiety and depression after COVID-19 and for studying correlations between neurological complications after COVID-19. However, since our pilot clinical trial was open-label, it is hard to differentiate between neurofeedback-specific and unspecific effects on our participants. Future randomized controlled trials with more robust sample are necessary to investigate feasibility of neurofeedback for post-COVID neurological complications. The study has identification number trial ID ISRCTN49037874 in ISRCTN register of clinical trials (Retrospectively registered).

View Full Paper →

Ready to Optimize Your Brain?

Schedule a free consultation to discuss anxiety and how neurofeedback training can help

* Required fields