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https://www.readbyqxmd.com/read/29021815/analysis-of-eeg-entropy-during-visual-evocation-of-emotion-in-schizophrenia
#1
Wen-Lin Chu, Min-Wei Huang, Bo-Lin Jian, Kuo-Sheng Cheng
BACKGROUND: In this study, the international affective picture system was used to evoke emotion, and then the corresponding signals were collected. The features from different points of brainwaves, frequency, and entropy were used to identify normal, moderately, and markedly ill schizophrenic patients. METHODS: The signals were collected and preprocessed. Then, the signals were separated according to three types of emotions and five frequency bands. Finally, the features were calculated using three different methods of entropy...
2017: Annals of General Psychiatry
https://www.readbyqxmd.com/read/28967866/discriminative-codewaves-a-symbolic-dynamics-approach-to-ssvep-recognition-for-asynchronous-bci
#2
Konstantinos Ilias Georgiadis, Nikolaos Laskaris, Spiros Nikolopoulos, Yiannis Kompatsiaris
Steady-state visual evoked potential (SSVEP) is a very popular approach to establishing a communication pathway in brain computer interfaces (BCIs), without any training requirements for the user. Brain activity recorded over occipital regions, in association with stimuli flickering at distinct frequencies, is used to predict the gaze direction. High performance is achieved when the analysis of multichannel signal is guided by the driving signals. It is the scope of this study to introduce an efficient way to identify the attended stimulus without the need to register the driving signals...
October 2, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28962870/when-birds-and-sias-fly-a-neural-indicator-of-inferring-a-word-meaning-in-context
#3
Pablo Rodríguez-Gómez, Natalia Martínez-García, Miguel A Pozo, José A Hinojosa, Eva M Moreno
Inference generation is a crucial skill in language comprehension. Recent research suggests that readers use both the contents from prior written text and their background knowledge, stored in long-term memory, to generate predictive inferences about what will come up next in a sentence. We recorded Event-Related Potentials (ERPs) to examine the reader's ability to make online inferences even in the presence of pseudowords (orthographically legal, but meaningless letter strings), that is, in the presence of referents with no a priori match to vocabulary stored knowledge...
September 28, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28853229/average-spectral-power-changes-at-the-hippocampal-electroencephalogram-in-schizophrenia-model-induced-by-ketamine
#4
Luis Rafael L Sampaio, Lucas T N Borges, Joyse M F Silva, Francisca Roselin O de Andrade, Talita M Barbosa, Tatiane Q Oliveira, Danielle Macedo, Ricardo F Lima, Leonardo Pimentel Dantas, Manoel Cláudio Azevedo Patrocinio, Otoni C do Vale, Silvania Mendes M de Vasconcelos
The use of ketamine (Ket) as a pharmacological model of schizophrenia is an important tool for understanding the main mechanisms of glutamatergic regulated neural oscillations. Thus, the aim of the current study was to evaluate Ket induced changes in the average spectral power using the hippocampal quantitative electroencephalography (QEEG). To this end, male Wistar rats were submitted to a stereotactic surgery for the implantation of an electrode in the right hippocampus. After three days, the animals were divided into 4 groups that were treated for 10 consecutive days with Ket (10, 50 or 100 mg/kg)...
August 29, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28840774/electroencephalography-pattern-variations-during-motor-skill-acquisition
#5
Mohammadreza Ghasemian, Hamidreza Taheri, Alireza Saberi Kakhki, Majid Ghoshuni
The present study examined how motor skill acquisition affects electroencephalography patterns and compared short- and long-term electroencephalography variations. For this purpose, 17 volunteers with no history of disease, aged 18 to 22 years, attended seven training sessions every other day to practice a pursuit tracking motor skill. Electroencephalography brainwaves were recorded and analyzed on the first and last days within pre- and post-training intervals. The results showed a significant decrease in performance error and variability with practice over time...
January 1, 2017: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/28544507/the-effect-of-binaural-beat-technology-on-the-cardiovascular-stress-response-in-military-service-members-with-postdeployment-stress
#6
MeLisa A Gantt, Stephanie Dadds, Debra S Burns, Dale Glaser, Angelo D Moore
PURPOSE: To assess the efficacy of embedded theta brainwave frequency in music using binaural beat technology (BBT) compared to music alone on the cardiovascular stress response in military service members with postdeployment stress. DESIGN: A double-blinded, randomized, pre- and postintervention trial. METHODS: Seventy-four military services members with complaint of postdeployment stress were randomized to either music with BBT or music alone...
July 2017: Journal of Nursing Scholarship
https://www.readbyqxmd.com/read/28484488/progress-in-eeg-based-brain-robot-interaction-systems
#7
REVIEW
Xiaoqian Mao, Mengfan Li, Wei Li, Linwei Niu, Bin Xian, Ming Zeng, Genshe Chen
The most popular noninvasive Brain Robot Interaction (BRI) technology uses the electroencephalogram- (EEG-) based Brain Computer Interface (BCI), to serve as an additional communication channel, for robot control via brainwaves. This technology is promising for elderly or disabled patient assistance with daily life. The key issue of a BRI system is to identify human mental activities, by decoding brainwaves, acquired with an EEG device. Compared with other BCI applications, such as word speller, the development of these applications may be more challenging since control of robot systems via brainwaves must consider surrounding environment feedback in real-time, robot mechanical kinematics, and dynamics, as well as robot control architecture and behavior...
2017: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/28348527/tuning-up-the-old-brain-with-new-tricks-attention-training-via-neurofeedback
#8
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/28290068/eeg-based-alpha-neurofeedback-training-for-mood-enhancement
#9
Swee Wu Phneah, Humaira Nisar
The aim of this paper is to develop a preliminary neurofeedback system to improve the mood of the subjects using audio signals by enhancing their alpha brainwaves. Assessment of the effect of music on the human subjects is performed using three methods; subjective assessment of mood with the help of a questionnaire, the effect on brain by analysing EEG signals, and the effect on body by physiological assessment. In this study, two experiments have been designed. The first experiment was to determine the short-term effect of music on soothing human subjects, whereas the second experiment was to determine its long-term effect...
March 13, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/28262140/additive-effects-of-neurofeedback-on-the-treatment-of-adhd-a-randomized-controlled-study
#10
RANDOMIZED CONTROLLED TRIAL
Eun-Jeong Lee, Chul-Ho Jung
Neurofeedback (NF) has been identified as a "possibly efficacious" treatment in current evidence-based reviews; therefore, more research is needed to determine its effects. The current study examined the potential additive effect of NF for children diagnosed with ADHD beginning a medication trial first. Thirty-six children (6-12 years) with a DSM-IV-TR diagnosis of ADHD were randomly assigned to an NF with medication (NF condition) or a medication only condition. Children in the NF group attended 20 twice-weekly sessions...
February 2017: Asian Journal of Psychiatry
https://www.readbyqxmd.com/read/28208777/development-and-experimental-validation-of-a-dry-non-invasive-multi-channel-mouse-scalp-eeg-sensor-through-visual-evoked-potential-recordings
#11
Donghyeon Kim, Chanmi Yeon, Kiseon Kim
In this paper, we introduce a dry non-invasive multi-channel sensor for measuring brainwaves on the scalps of mice. The research on laboratory animals provide insights to various practical applications involving human beings and other animals such as working animals, pets, and livestock. An experimental framework targeting the laboratory animals has the potential to lead to successful translational research when it closely resembles the environment of real applications. To serve scalp electroencephalography (EEG) research environments for the laboratory mice, the dry non-invasive scalp EEG sensor with sixteen electrodes is proposed to measure brainwaves over the entire brain area without any surgical procedures...
February 9, 2017: Sensors
https://www.readbyqxmd.com/read/28138830/attempts-to-suppress-episodic-memories-fail-but-do-produce-demand-evidence-from-the-p300-based-complex-trial-protocol-and-an-implicit-memory-test
#12
Anne C Ward, J Peter Rosenfeld
Instructions to voluntarily suppress memories of a mock crime have been reported to result in decreased P300 amplitude during a P300-based concealed information test (CIT) and reduced autobiographical Implicit Association Test (aIAT) D scores, supporting successful suppression. However, one such study, (Hu et al., Psychological science 26(7):1098-1106, 2015) used the P300-based Complex Trial Protocol with a 50-50 target to nontarget ratio, which could impose much response switching and thereby drain cognitive resources, also resulting in reduced P300...
January 30, 2017: Applied Psychophysiology and Biofeedback
https://www.readbyqxmd.com/read/28118405/increased-gamma-brainwave-amplitude-compared-to-control-in-three-different-meditation-traditions
#13
COMPARATIVE STUDY
Claire Braboszcz, B Rael Cahn, Jonathan Levy, Manuel Fernandez, Arnaud Delorme
Despite decades of research, effects of different types of meditation on electroencephalographic (EEG) activity are still being defined. We compared practitioners of three different meditation traditions (Vipassana, Himalayan Yoga and Isha Shoonya) with a control group during a meditative and instructed mind-wandering (IMW) block. All meditators showed higher parieto-occipital 60-110 Hz gamma amplitude than control subjects as a trait effect observed during meditation and when considering meditation and IMW periods together...
2017: PloS One
https://www.readbyqxmd.com/read/27999538/robotic-and-virtual-reality-bcis-using-spatial-tactile-and-auditory-oddball-paradigms
#14
REVIEW
Tomasz M Rutkowski
The paper reviews nine robotic and virtual reality (VR) brain-computer interface (BCI) projects developed by the author, in collaboration with his graduate students, within the BCI-lab research group during its association with University of Tsukuba, Japan. The nine novel approaches are discussed in applications to direct brain-robot and brain-virtual-reality-agent control interfaces using tactile and auditory BCI technologies. The BCI user intentions are decoded from the brainwaves in realtime using a non-invasive electroencephalography (EEG) and they are translated to a symbiotic robot or virtual reality agent thought-based only control...
2016: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/27747819/familiarity-effects-in-eeg-based-emotion-recognition
#15
Nattapong Thammasan, Koichi Moriyama, Ken-Ichi Fukui, Masayuki Numao
Although emotion detection using electroencephalogram (EEG) data has become a highly active area of research over the last decades, little attention has been paid to stimulus familiarity, a crucial subjectivity issue. Using both our experimental data and a sophisticated database (DEAP dataset), we investigated the effects of familiarity on brain activity based on EEG signals. Focusing on familiarity studies, we allowed subjects to select the same number of familiar and unfamiliar songs; both resulting datasets demonstrated the importance of reporting self-emotion based on the assumption that the emotional state when experiencing music is subjective...
March 2017: Brain Informatics
https://www.readbyqxmd.com/read/27739372/phosphoinositide-3-kinases-as-the-novel-therapeutic-targets-for-the-inflammatory-diseases-current-and-future-perspectives
#16
Preeti Vyas, Divya Vohora
Recent findings have publicized phosphoinositide-3-kinases (PI3Ks) as novel therapeutic targets, which are also purported to be involved in the complex pathophysiology of inflammatory and various other diseases. They are recognized to participate in the inflammatory cellular responses by modulating the growth, development and proliferation of various immune cells and hence, affect the release of various cytokines and other inflammatory mediators involved in these manifestations. The review presents a brief synopsis of the PI3K/AKT/mTOR signalling pathway along with the current and future prospects of targeting PI3Ks for various diseases, like malignant, autoimmune, inflammatory, cardiovascular, neurological disorders etc...
October 13, 2016: Current Drug Targets
https://www.readbyqxmd.com/read/27580077/blue-black-or-white-gold-early-stage-processing-and-the-color-of-the-dress
#17
Jeff Rabin, Brook Houser, Carolyn Talbert, Ruh Patel
PURPOSE: In Feb 2015 an image of a dress posted on Tumblr triggered an internet phenomenon: Is the Dress blue and black (BB) or white and gold (WG)? Many claim BB and others insist WG while the true colors are BB. The prevailing theory is that assumptions about the illuminant govern perception of the Dress with WG due to bluish lighting and BB due to yellowish. Our purpose was to determine if early stage optical, retinal and/or neural factors also impact perception of the Dress. METHODS: Thirty-nine subjects were categorized as BB or WG based on their initial perception of the Dress and their perception reported when viewing the Dress on iPhone 5, iPad, and 22" LCD displays...
2016: PloS One
https://www.readbyqxmd.com/read/27543971/brainwaves-in-concert-the-20th-century-sonification-of-the-electroencephalogram
#18
Bart Lutters, Peter J Koehler
No abstract text is available yet for this article.
October 2016: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/27498944/high-level-hands-free-control-of-wheelchair-a-review
#19
Sharmila Ashok
A vital perception in designing human-machine interfaces for people with disabilities is hands-free control. It is important in setting up communication among a machine and the part of human body. Nowadays, hands-free control is extensively used to help disabled people to control the wheelchair. The hands-free control functions are not only helpful to elderly and disabled, but also useful for normal people who might require using their hands for other tasks at the same time. As a result, normal people are capable of manipulating multiple tasks at the same time...
January 2017: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/27462511/effects-of-modified-electroconvulsive-therapy-on-the-electroencephalogram-of-schizophrenia-patients
#20
Ling Zhao, Yansheng Jiang, Hongxing Zhang
BACKGROUND: This study aimed to investigate the modified electroconvulsive therapy (MECT) on the electroencephalogram (EEG) of schizophrenia patients. A total of 26 schizophrenia patients who received MECT were recruited. EEG recording was initiated at 30 min before 1st and 6th MECT and terminated on the 2nd day. Images without artifacts were selected for the analysis of δ, θ, α1, α2 and β bands. The wave energy at each frequency, index of waves at different bands from the same lead, index of waves at the same band from different leads, time of epileptic discharge, time of resting state, and time to the stable EEG were determined and compared...
2016: SpringerPlus
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