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https://www.readbyqxmd.com/read/28445589/a-network-engineering-perspective-on-probing-and-perturbing-cognition-with-neurofeedback
#1
REVIEW
Danielle S Bassett, Ankit N Khambhati
Network science and engineering provide a flexible and generalizable tool set to describe and manipulate complex systems characterized by heterogeneous interaction patterns among component parts. While classically applied to social systems, these tools have recently proven to be particularly useful in the study of the brain. In this review, we describe the nascent use of these tools to understand human cognition, and we discuss their utility in informing the meaningful and predictable perturbation of cognition in combination with the emerging capabilities of neurofeedback...
April 26, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28442359/emg-biofeedback-training-in-adult-attention-deficit-hyperactivity-disorder-an-active-control-training
#2
Beatrix Barth, Kerstin Mayer, Ute Strehl, Andreas J Fallgatter, Ann-Christine Ehlis
OBJECTIVE: The present study aimed at revealing neurophysiological effects induced by electromyography (EMG) based biofeedback, considered as a semi-active control condition in neurofeedback studies, in adult attention-deficit/hyperactivity disorder (ADHD) patients. METHODS: 20 adult ADHD patients trained their muscle activity in the left and right supraspinatus muscle over the course of 30 EMG biofeedback sessions. Changes induced by the EMG feedback were evaluated at a clinical and neurophysiological level; additionally, the relation between changes in EEG activity recorded at the vertex over the training course and changes of symptom severity over the treatment course were assessed in order to investigate the mechanisms underlying clinical effects of EMG biofeedback...
April 22, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28408873/neurofeedback-of-slow-cortical-potentials-in-children-with-attention-deficit-hyperactivity-disorder-a-multicenter-randomized-trial-controlling-for-unspecific-effects
#3
Ute Strehl, Pascal Aggensteiner, Daniel Wachtlin, Daniel Brandeis, Björn Albrecht, Maria Arana, Christiane Bach, Tobias Banaschewski, Thorsten Bogen, Andrea Flaig-Röhr, Christine M Freitag, Yvonne Fuchsenberger, Stephanie Gest, Holger Gevensleben, Laura Herde, Sarah Hohmann, Tanja Legenbauer, Anna-Maria Marx, Sabina Millenet, Benjamin Pniewski, Aribert Rothenberger, Christian Ruckes, Sonja Wörz, Martin Holtmann
Background: Neurofeedback (NF) in children with attention-deficit/hyperactivity disorder (ADHD) has been investigated in a series of studies over the last years. Previous studies did not unanimously support NF as a treatment in ADHD. Most studies did not control for unspecific treatment effects and did not demonstrate that self-regulation took place. The present study examined the efficacy of NF in comparison to electromyographic (EMG) feedback to control for unspecific effects of the treatment, and assessed self-regulation of slow cortical potentials (SCPs)...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28407727/randomized-clinical-trial-of-real-time-fmri-amygdala-neurofeedback-for-major-depressive-disorder-effects-on-symptoms-and-autobiographical-memory-recall
#4
Kymberly D Young, Greg J Siegle, Vadim Zotev, Raquel Phillips, Masaya Misaki, Han Yuan, Wayne C Drevets, Jerzy Bodurka
OBJECTIVE: Patients with depression show blunted amygdala hemodynamic activity to positive stimuli, including autobiographical memories. The authors examined the therapeutic efficacy of real-time functional MRI neurofeedback (rtfMRI-nf) training aimed at increasing the amygdala's hemodynamic response to positive memories in patients with depression. METHOD: In a double-blind, placebo-controlled, randomized clinical trial, unmedicated adults with depression (N=36) were randomly assigned to receive two sessions of rtfMRI-nf either from the amygdala (N=19) or from a parietal control region not involved in emotional processing (N=17)...
April 14, 2017: American Journal of Psychiatry
https://www.readbyqxmd.com/read/28386224/maintenance-of-voluntary-self-regulation-learned-through-real-time-fmri-neurofeedback
#5
Fabien Robineau, Djalel E Meskaldji, Yury Koush, Sebastian W Rieger, Christophe Mermoud, Stephan Morgenthaler, Dimitri Van De Ville, Patrik Vuilleumier, Frank Scharnowski
Neurofeedback based on real-time functional magnetic resonance imaging (fMRI) is an emerging technique that allows for learning voluntary control over brain activity. Such brain training has been shown to cause specific behavioral or cognitive enhancements, and even therapeutic effects in neurological and psychiatric patient populations. However, for clinical applications it is important to know if learned self-regulation can be maintained over longer periods of time and whether it transfers to situations without neurofeedback...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28385053/using-real-time-fmri-neurofeedback-to-restore-right-occipital-cortex-activity-in-patients-with-left-visuo-spatial-neglect-proof-of-principle-and-preliminary-results
#6
Fabien Robineau, Arnaud Saj, Rémi Neveu, Dimitri Van De Ville, Frank Scharnowski, Patrik Vuilleumier
Hemineglect is common after right parietal stroke, characterised by impaired awareness for stimuli in left visual space, with suppressed neural activity in the right visual cortex due to losses in top-down attention signals. Here we sought to assess whether hemineglect patients are able to up-regulate their right visual cortex activity using auditory real-time functional magnetic resonance imaging (rt-fMRI) neurofeedback. We also examined any effect of this training procedure on neglect severity. Two different neurofeedback methods were used...
April 6, 2017: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/28377691/how-to-build-a-hybrid-neurofeedback-platform-combining-eeg-and-fmri
#7
Marsel Mano, Anatole Lécuyer, Elise Bannier, Lorraine Perronnet, Saman Noorzadeh, Christian Barillot
Multimodal neurofeedback estimates brain activity using information acquired with more than one neurosignal measurement technology. In this paper we describe how to set up and use a hybrid platform based on simultaneous electroencephalography (EEG) and functional magnetic resonance imaging (fMRI), then we illustrate how to use it for conducting bimodal neurofeedback experiments. The paper is intended for those willing to build a multimodal neurofeedback system, to guide them through the different steps of the design, setup, and experimental applications, and help them choose a suitable hardware and software configuration...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28375458/neurofeedback-or-neuroplacebo
#8
Robert T Thibault, Michael Lifshitz, Amir Raz
No abstract text is available yet for this article.
April 1, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28373836/beware-recruitment-of-muscle-activity-by-the-eeg-neurofeedback-trainings-of-high-frequencies
#9
Katarzyna Paluch, Katarzyna Jurewicz, Jacek Rogala, Rafał Krauz, Marta Szczypińska, Mirosław Mikicin, Andrzej Wróbel, Ewa Kublik
EEG-neurofeedback (NFB) became a very popular method aimed at improving cognitive and behavioral performance. However, the EMG frequency spectrum overlies the higher EEG oscillations and the NFB trainings focusing on these frequencies is hindered by the problem of EMG load in the information fed back to the subjects. In such a complex signal, it is highly probable that the most controllable component will form the basis for operant conditioning. This might cause different effects in the case of various training protocols and therefore needs to be carefully assessed before designing training protocols and algorithms...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28367834/electroencephalographic-identifiers-of-motor-adaptation-learning
#10
Ozan Ozdenizci, Mustafa Yalcin, Ahmetcan Erdogan, Volkan Patoglu, Moritz Grosse-Wentrup, Mujdat Cetin
OBJECTIVE: Recent brain-computer interface (BCI) assisted stroke rehabilitation protocols tend to focus on sensorimotor activity of the brain. Relying on evidence claiming that a variety of brain rhythms beyond sensorimotor areas are related to the extent of motor deficits, we propose to identify neural correlates of motor learning beyond sensorimotor areas spatially and spectrally for further use in novel BCI-assisted neurorehabilitation settings. APPROACH: Electroencephalographic (EEG) data were recorded from healthy subjects participating in a physical force-field adaptation task involving reaching movements through a robotic handle...
April 3, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28348527/tuning-up-the-old-brain-with-new-tricks-attention-training-via-neurofeedback
#11
REVIEW
Yang Jiang, Reza Abiri, Xiaopeng Zhao
Neurofeedback (NF) is a form of biofeedback that uses real-time (RT) modulation of brain activity to enhance brain function and behavioral performance. Recent advances in Brain-Computer Interfaces (BCI) and cognitive training (CT) have provided new tools and evidence that NF improves cognitive functions, such as attention and working memory (WM), beyond what is provided by traditional CT. More published studies have demonstrated the efficacy of NF, particularly for treating attention deficit hyperactivity disorder (ADHD) in children...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28348511/constraints-and-adaptation-of-closed-loop-neuroprosthetics-for-functional-restoration
#12
Robert Bauer, Alireza Gharabaghi
Closed-loop neuroprosthetics aim to compensate for lost function, e.g., by controlling external devices such as prostheses or wheelchairs. Such assistive approaches seek to maximize speed and classification accuracy for high-dimensional control. More recent approaches use similar technology, but aim to restore lost motor function in the long term. To achieve this goal, restorative neuroprosthetics attempt to facilitate motor re-learning and to strengthen damaged and/or alternative neural connections on the basis of neurofeedback training within rehabilitative environments...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28345387/multimodal-treatment-in-children-and-adolescents-with-attention-deficit-hyperactivity-disorder-a-6-month-follow-up
#13
Nezla S Duric, Jørg Assmus, Doris Gundersen, Alisa Duric Golos, Irene B Elgen
BACKGROUND: Different treatment approaches aimed at reducing attention-deficit/hyperactivity disorder (ADHD) core symptoms are available. However, factors such as intolerance, side-effects, lack of efficacy, high new technology costs, and placebo effect have spurred on an increasing interest in alternative or complementary treatment. AIM: The aim of this study is to explore efficacy of multimodal treatment consisting of standard stimulant medication (methylphenidate) and neurofeedback (NF) in combination, and to compare it with the single treatment in 6-month follow-up in ADHD children and adolescents...
March 27, 2017: Nordic Journal of Psychiatry
https://www.readbyqxmd.com/read/28342214/real-time-fmri-neurofeedback-in-adolescents-with-attention-deficit-hyperactivity-disorder
#14
Analucia A Alegria, Melanie Wulff, Helen Brinson, Gareth J Barker, Luke J Norman, Daniel Brandeis, Daniel Stahl, Anthony S David, Eric Taylor, Vincent Giampietro, Katya Rubia
Attention Deficit Hyperactivity Disorder (ADHD) is associated with poor self-control, underpinned by inferior fronto-striatal deficits. Real-time functional magnetic resonance neurofeedback (rtfMRI-NF) allows participants to gain self-control over dysregulated brain regions. Despite evidence for beneficial effects of electrophysiological-NF on ADHD symptoms, no study has applied the spatially superior rtfMRI-NF neurotherapy to ADHD. A randomized controlled trial tested the efficacy of rtfMRI-NF of right inferior prefrontal cortex (rIFG), a key region that is compromised in ADHD and upregulated with psychostimulants, on improvement of ADHD symptoms, cognition, and inhibitory fMRI activation...
March 25, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28340429/simple-index-of-functional-connectivity-at-rest-in-multiple-sclerosis-fatigue
#15
Korhan Buyukturkoglu, Camillo Porcaro, Carlo Cottone, Andrea Cancelli, Matilde Inglese, Franca Tecchio
OBJECTIVE: To investigate the EEG-derived functional connectivity at rest (FCR) patterns of fatigued Multiple Sclerosis (MS) patients in order to find good parameters for a future EEG-Neurofeedback intervention to reduce their fatigue symptoms. METHODS: We evaluated FCR between hemispheric homologous areas, via spectral coherence between pairs of corresponding left and right bipolar derivations, in the Theta, Alpha and Beta bands. We estimated FCR in 18MS patients with different levels of fatigue and minimal clinical severity and in 11 age and gender matched healthy controls...
May 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28338742/brain-mechanisms-for-loss-of-awareness-of-thought-and-movement
#16
Eamonn Walsh, David A Oakley, Peter W Halligan, Mitul A Mehta, Quinton Deeley
Loss or reduction of awareness is common in neuropsychiatric disorders and culturally influenced dissociative phenomena but the underlying brain mechanisms are poorly understood. fMRI was combined with suggestions for automatic writing in 18 healthy highly hypnotically suggestible individuals in a within-subjects design to determine whether clinical alterations in awareness of thought and movement can be experimentally modelled and studied independently of illness. Subjective ratings of control, ownership, and awareness of thought and movement, and fMRI data were collected following suggestions for thought insertion and alien control of writing movement, with and without loss of awareness...
February 17, 2017: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/28335000/better-than-sham-a-double-blind-placebo-controlled-neurofeedback-study-in-primary-insomnia
#17
RANDOMIZED CONTROLLED TRIAL
Manuel Schabus, Hermann Griessenberger, Maria-Teresa Gnjezda, Dominik P J Heib, Malgorzata Wislowska, Kerstin Hoedlmoser
See Thibault et al. (doi:10.1093/awx033) for a scientific commentary on this article.Neurofeedback training builds upon the simple concept of instrumental conditioning, i.e. behaviour that is rewarded is more likely to reoccur, an effect Thorndike referred to as the 'law of effect'. In the case of neurofeedback, information about specific electroencephalographic activity is fed back to the participant who is rewarded whenever the desired electroencephalography pattern is generated. If some kind of hyperarousal needs to be addressed, the neurofeedback community considers sensorimotor rhythm neurofeedback as the gold standard...
April 1, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28321945/quantitative-representations-of-an-exaggerated-anxiety-response-in-the-brain-of-female-spider-phobics-a-parametric-fmri-study
#18
Anna Zilverstand, Bettina Sorger, Anita Kaemingk, Rainer Goebel
We employed a novel parametric spider picture set in the context of a parametric fMRI anxiety provocation study, designed to tease apart brain regions involved in threat monitoring from regions representing an exaggerated anxiety response in spider phobics. For the stimulus set, we systematically manipulated perceived proximity of threat by varying a depicted spider's context, size, and posture. All stimuli were validated in a behavioral rating study (phobics n = 20; controls n = 20; all female). An independent group participated in a subsequent fMRI anxiety provocation study (phobics n = 7; controls n = 7; all female), in which we compared a whole-brain categorical to a whole-brain parametric analysis...
March 21, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28321406/a-randomized-trial-of-comparing-the-efficacy-of-two-neurofeedback-protocols-for-treatment-of-clinical-and-cognitive-symptoms-of-adhd-theta-suppression-beta-enhancement-and-theta-suppression-alpha-enhancement
#19
RANDOMIZED CONTROLLED TRIAL
Arash Mohagheghi, Shahrokh Amiri, Nafiseh Moghaddasi Bonab, Gholamreza Chalabianloo, Seyed Gholamreza Noorazar, Seyed Mahmoud Tabatabaei, Sara Farhang
Introduction. Neurofeedback (NF) is an adjuvant or alternative therapy for children with Attention Deficit Hyperactivity Disorder (ADHD). This study intended to compare the efficacy of two different NF protocols on clinical and cognitive symptoms of ADHD. Materials and Methods. In this clinical trial, sixty children with ADHD aged 7 to 10 years old were randomly grouped to receive two different NF treatments (theta suppression/beta enhancement protocol and theta suppression/alpha enhancement protocol). Clinical and cognitive assessments were conducted prior to and following the treatment and also after an eight-week follow-up...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28293109/effects-of-a-structured-20-session-slow-cortical-potential-based-neurofeedback-program-on-attentional-performance-in-children-and-adolescents-with-attention-deficit-hyperactivity-disorder-retrospective-analysis-of-an-open-label-pilot-approach-and-6-month-follow
#20
Johanna S Albrecht, Sarah Bubenzer-Busch, Anne Gallien, Eva Lotte Knospe, Tilman J Gaber, Florian D Zepf
OBJECTIVE: The aim of this approach was to conduct a structured electroencephalography-based neurofeedback training program for children and adolescents with attention-deficit hyperactivity disorder (ADHD) using slow cortical potentials with an intensive first (almost daily sessions) and second phase of training (two sessions per week) and to assess aspects of attentional performance. PATIENTS AND METHODS: A total of 24 young patients with ADHD participated in the 20-session training program...
2017: Neuropsychiatric Disease and Treatment
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