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https://www.readbyqxmd.com/read/28092509/a-bci-based-environmental-control-system-for-patients-with-severe-spinal-cord-injuries
#1
Rui Zhang, Qihong Wang, Kai Li, Shenghong He, Si Qin, Zhenghui Feng, Yang Chen, Pingxia Song, Tingyan Yang, Yuandong Zhang, Zhuliang Yu, Yaohua Hu, Ming Shao, Yuanqing Li
: This study proposes an event-related potential (ERP) BCI-based environmental control system that integrates household electrical appliances, a nursing bed, and an intelligent wheelchair to provide daily assistance to paralyzed patients with severe spinal cord injuries (SCIs). METHODS: An asynchronous mode is used to switch the environmental control system on or off or to select a device (e.g., a TV) for achieving selfpaced control. In the asynchronous mode, we introduce several pseudo-keys and a verification mechanism to effectively reduce the false operation rate...
January 9, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28092334/is-enhanced-recovery-the-new-standard-of-care-in-microsurgical-breast-reconstruction
#2
Anoushka Afonso, Sabine Oskar, Kay See Tan, Joseph J Disa, Babak J Mehrara, Jihan Ceyhan, Joseph H Dayan
BACKGROUND: Enhanced recovery pathways (ERPs) have been shown to aid in patient recovery and improve outcomes in many surgical settings. At present, there is limited data available regarding the use and feasibility of ERPs for patients undergoing microsurgical breast reconstruction. We sought to assess patient outcomes before and after the introduction of an ERP that was adopted by multiple surgeons at a single cancer center. METHODS: A multidisciplinary ERP was developed for patients undergoing deep inferior epigastric perforator (DIEP) or muscle-sparing free transverse rectus abdominis myocutaneous (TRAM) flap breast reconstruction...
January 12, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28090181/how-much-we-think-of-ourselves-and-how-little-we-think-of-others-an-investigation-of-the-neuronal-signature-of-self-consciousness-between-different-personality-traits-through-an-event-related-potential-study
#3
Auwal Bello Hassan, Tahamina Begum, Mohammed Faruque Reza, Nasir Yusoff
BACKGROUND: Previous studies have revealed that self-related tasks (items) receive more attention than non-self-related, and that they elicit event-related potential (ERP) components with larger amplitudes. Since personality has been reported as one of the biological correlates influencing these components, as well as our behavioural differences, it is important to examine how it affects our self-consciousness in relation to tasks of varied relevance and the neurological basis. METHODS: A total of 33 male and female undergraduate Malaysian medical students of Universiti Sains Malaysia (USM) participated in the study...
November 2016: Malaysian Journal of Medical Sciences: MJMS
https://www.readbyqxmd.com/read/28089714/effects-of-touch-on-emotional-face-processing-a-study-of-event-related-potentials-facial-emg-and-cardiac-activity
#4
M M Spapé, Harjunen, N Ravaja
Being touched is known to affect emotion, and even a casual touch can elicit positive feelings and affinity. Psychophysiological studies have recently shown that tactile primes affect visual evoked potentials to emotional stimuli, suggesting altered affective stimulus processing. As, however, these studies approached emotion from a purely unidimensional perspective, it remains unclear whether touch biases emotional evaluation or a more general feature such as salience. Here, we investigated how simple tactile primes modulate event related potentials (ERPs), facial EMG and cardiac response to pictures of facial expressions of emotion...
January 12, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28089584/pterostilbene-attenuates-high-glucose-induced-oxidative-injury-in-hippocampal-neuronal-cells-by-activating-nuclear-factor-erythroid-2-related-factor-2
#5
Yang Yang, Chongxi Fan, Bodong Wang, Zhiqiang Ma, Dongjin Wang, Bing Gong, Shouyin Di, Shuai Jiang, Yue Li, Tian Li, Zhi Yang, Erping Luo
In the present study, neuroblastoma (SH-SY5Y) cells were used to investigate the mechanisms mediating the potential protective effects of pterostilbene (PTE) against mitochondrial metabolic impairment and oxidative stress induced by hyperglycemia for mimicking the diabetic encephalopathy. High glucose medium (100 mM) decreased cellular viability after 24 h incubation which was evidenced by: (i) reduced mitochondrial complex I and III activities; (ii) reduced mitochondrial cytochrome C; (iii) increased reactive oxygen species (ROS) generation; (iv) decreased mitochondrial membrane potential (ΔΨm); and (v) increased lactate dehydrogenase (LDH) levels...
January 9, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28088999/standard-step-sectioning-of-skin-biopsy-specimens-diagnosed-as-superficial-basal-cell-carcinoma-frequently-yields-deeper-and-more-aggressive-subtypes
#6
Kim P Nguyen, G Jimmy Knuiman, Piet E J van Erp, Willeke A Blokx, Malou Peppelman, Marie-Jeanne P Gerritsen
No abstract text is available yet for this article.
February 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28088666/vocal-emotion-decoding-in-the-subthalamic-nucleus-an-intracranial-erp-study-in-parkinson-s-disease
#7
Julie Péron, Olivier Renaud, Claire Haegelen, Lucas Tamarit, Valérie Milesi, Jean-François Houvenaghel, Thibaut Dondaine, Marc Vérin, Paul Sauleau, Didier Grandjean
Using intracranial local field potential (LFP) recordings in patients with Parkinson's disease (PD) undergoing deep brain stimulation (DBS), we explored the electrophysiological activity of the subthalamic nucleus (STN) in response to emotional stimuli in the auditory modality. Previous studies focused on the influence of visual stimuli. To this end, we recorded LFPs within the STN in response to angry, happy, and neutral prosodies in 13 patients with PD who had just undergone implantation of DBS electrodes...
January 12, 2017: Brain and Language
https://www.readbyqxmd.com/read/28081196/how-social-ties-influence-consumer-evidence-from-event-related-potentials
#8
Jing Luan, Zhong Yao, Yan Bai
A considerable amount of marketing research has reported that consumers are more saliently influenced by friends (strong social ties) than by acquaintances and strangers (weak social ties). To shed light on the neural and psychological processes underlying such phenomenon, in this study we designed an amended S1-S2 paradigm (product-[reviewer-review]) that is based on realistic consumer purchase experiences. After incoming all given information (product, reviewer, review), participants were required to state their purchase intentions...
2017: PloS One
https://www.readbyqxmd.com/read/28077270/instructions-to-suppress-semantic-memory-enhances-or-has-no-effect-on-p300-in-a-concealed-information-test-cit
#9
J Peter Rosenfeld, Anne Ward, Jesse Drapekin, Elena Labkovsky, Samuel Tullman
The present study investigated the extent to which people can suppress semantic memory as indexed with the P300 ERP and the autobiographical implicit association test (aIAT). In EXP 1, participants (22) were run in a counterbalanced repeated measures study in both simply knowledgeable (SK) and knowledgeable with suppression (SP) conditions. A P300-based, concealed information test ("Complex Trial Protocol"; CTP) with a 50/50 Target/Nontarget (T/NT) ratio was given both with and without instructions to suppress semantic memories...
January 7, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28072468/a-multi-dimensional-functional-principal-components-analysis-of-eeg-data
#10
Kyle Hasenstab, Aaron Scheffler, Donatello Telesca, Catherine A Sugar, Shafali Jeste, Charlotte DiStefano, Damla Şentürk
The electroencephalography (EEG) data created in event-related potential (ERP) experiments have a complex high-dimensional structure. Each stimulus presentation, or trial, generates an ERP waveform which is an instance of functional data. The experiments are made up of sequences of multiple trials, resulting in longitudinal functional data and moreover, responses are recorded at multiple electrodes on the scalp, adding an electrode dimension. Traditional EEG analyses involve multiple simplifications of this structure to increase the signal-to-noise ratio, effectively collapsing the functional and longitudinal components by identifying key features of the ERPs and averaging them across trials...
January 10, 2017: Biometrics
https://www.readbyqxmd.com/read/28072462/reliability-of-the-electrocortical-response-to-gains-and-losses-in-the-doors-task
#11
Amanda R Levinson, Brittany C Speed, Zachary P Infantolino, Greg Hajcak
The ability to differentiate between rewards and losses is critical for motivated action, and aberrant reward and loss processing has been associated with psychopathology. The reward positivity (RewP) and feedback negativity (FN) are ERPs elicited by monetary gains and losses, respectively, and are promising individual difference measures. However, few studies have reported on the psychometric properties of the RewP and FN-crucial characteristics necessary for valid individual difference measures. The current study examined the internal consistency and 1-week test-retest reliability of the RewP and FN as elicited by the doors task among 59 young adults...
January 10, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28069542/hemispheric-asymmetries-in-the-transition-from-action-preparation-to-execution
#12
Valentina Sulpizio, Giuliana Lucci, Marika Berchicci, Gaspare Galati, Sabrina Pitzalis, Francesco Di Russo
Flexible and adaptive behavior requires the ability to contextually stop inappropriate actions and select the right one as quickly as possible. Recently, it has been proposed that three brain regions, i.e., the inferior frontal gyrus (iFg), the anterior insula (aIns), and the anterior intraparietal sulcus (aIPs), play an important role in several processing phases of perceptual decision tasks, especially in the preparation, perception and action phases, respectively. However, little is known about hemispheric differences in the activation of these three areas during the transition from perception to action...
January 6, 2017: NeuroImage
https://www.readbyqxmd.com/read/28068353/speech-timing-deficit-of-stuttering-evidence-from-contingent-negative-variations
#13
Ning Ning, Danling Peng, Xiangping Liu, Shuang Yang
The aim of the present study was to investigate the speech preparation processes of adults who stutter (AWS). Fifteen AWS and fifteen adults with fluent speech (AFS) participated in the experiment. The event-related potentials (ERPs) were recorded in a foreperiod paradigm. The warning signal (S1) was a color square, and the following imperative stimulus (S2) was either a white square (the Go signal that required participants to name the color of S1) or a white dot (the NoGo signal that prevents participants from speaking)...
2017: PloS One
https://www.readbyqxmd.com/read/28065167/diagnostic-utility-of-brain-activity-flow-patterns-analysis-in-attention-deficit-hyperactivity-disorder
#14
J Biederman, P Hammerness, B Sadeh, Z Peremen, A Amit, H Or-Ly, Y Stern, A Reches, A Geva, S V Faraone
BACKGROUND: A previous small study suggested that Brain Network Activation (BNA), a novel ERP-based brain network analysis, may have diagnostic utility in attention deficit hyperactivity disorder (ADHD). In this study we examined the diagnostic capability of a new advanced version of the BNA methodology on a larger population of adults with and without ADHD. METHOD: Subjects were unmedicated right-handed 18- to 55-year-old adults of both sexes with and without a DSM-IV diagnosis of ADHD...
January 9, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28064099/an-enhanced-recovery-programme-after-caesarean-delivery-increases-maternal-satisfaction-and-improves-maternal-neonatal-bonding-a-case-control-study
#15
Anne Laronche, Luiza Popescu, Dan Benhamou
OBJECTIVES: Enhanced recovery programmes (ERP) have been shown to improve postoperative outcomes. The aim of our study was to investigate the impact of an ERP after caesarean delivery on maternal feelings and satisfaction towards mother-child bonding initiation, in comparison with traditional postoperative care. STUDY DESIGN: A comparative, prospective and multicentre study was conducted in three maternity units of the Paris area: one applied traditional postoperative care while the two others applied an ERP, were included patients after elective or emergency caesarean delivery who had given birth to full-term healthy singleton newborns...
December 30, 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28064077/that-note-sounds-wrong-age-related-effects-in-processing-of-musical-expectation
#16
Andrea R Halpern, Ioanna Zioga, Martin Shankleman, Job Lindsen, Marcus T Pearce, Joydeep Bhattarcharya
Part of musical understanding and enjoyment stems from the ability to accurately predict what note (or one of a small set of notes) is likely to follow after hearing the first part of a melody. Selective violation of expectations can add to aesthetic response but radical or frequent violations are likely to be disliked or not comprehended. In this study we investigated whether a lifetime of exposure to music among untrained older adults would enhance their reaction to unexpected endings of unfamiliar melodies...
January 5, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/28061886/circadian-course-of-the-p300-erp-in-patients-with-amyotrophic-lateral-sclerosis-implications-for-brain-computer-interfaces-bci
#17
Helena Erlbeck, Ursula Mochty, Andrea Kübler, Ruben G L Real
BACKGROUND: Accidents or neurodegenerative diseases like amyotrophic lateral sclerosis (ALS) can lead to progressing, extensive, and complete paralysis leaving patients aware but unable to communicate (locked-in state). Brain-computer interfaces (BCI) based on electroencephalography represent an important approach to establish communication with these patients. The most common BCI for communication rely on the P300, a positive deflection arising in response to rare events. To foster broader application of BCIs for restoring lost function, also for end-users with impaired vision, we explored whether there were specific time windows during the day in which a P300 driven BCI should be preferably applied...
January 7, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28059564/visual-event-related-potentials-to-novel-objects-predict-rapid-word-learning-ability-in-20-month-olds
#18
Kristina Borgström, Janne von Koss Torkildsen, Magnus Lindgren
In an event-related potentials (ERP) study, twenty-month-old children (n = 37) were presented with pseudowords to map to novel object referents in five presentations. Quicker attenuation of the visual Negative central component (Nc) to novel objects predicted a larger difference in N400 amplitude between congruous and incongruous presentations of pseudowords at test. Furthermore, better initial recognition of familiar objects (Nc difference between familiar and novel objects) predicted the strength of the N400 incongruity effect to the verbal labels of these real objects...
January 6, 2017: Developmental Neuropsychology
https://www.readbyqxmd.com/read/28057925/decreased-empathy-response-to-other-people-s-pain-in-bipolar-disorder-evidence-from-an-event-related-potential-study
#19
Jingyue Yang, Xinglong Hu, Xiaosi Li, Lei Zhang, Yi Dong, Xiang Li, Chunyan Zhu, Wen Xie, Jingjing Mu, Su Yuan, Jie Chen, Fangfang Chen, Fengqiong Yu, Kai Wang
Bipolar disorder (BD) patients often demonstrate poor socialization that may stem from a lower capacity for empathy. We examined the associated neurophysiological abnormalities by comparing event-related potentials (ERP) between 30 BD patients in different states and 23 healthy controls (HCs, matched for age, sex, and education) during a pain empathy task. Subjects were presented pictures depicting pain or neutral images and asked to judge whether the person shown felt pain (pain task) and to identify the affected side (laterality task) during ERP recording...
January 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28057515/evidence-for-erp-biomarkers-of-eating-disorder-symptoms-in-women
#20
Katie Groves, Steffan Kennett, Helge Gillmeister
Growing evidence suggests that the brain processes bodies distinctively from other stimuli, but little research has addressed whether visual body perception is modulated by the observer's thoughts and feelings about their own body. The present study thus investigated the relationship between body image and electrophysiological signatures of body perception, with the aim of identifying potential biomarkers of body image disturbances. Occipito-parietal (P1 and N1) and fronto-central (VPP) processing of body and non-body stimuli were assessed in 29 weight-restored eating disordered (ED) women and compared to 27 healthy controls...
January 2, 2017: Biological Psychology
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