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https://www.readbyqxmd.com/read/29792907/electrocortical-reactivity-to-negative-and-positive-facial-expressions-in-individuals-with-a-family-history-of-major-depression
#1
Anna J Watters, Anthony W F Harris, Leanne M Williams
Facial expressions signaling threat and mood-congruent loss have been used to probe abnormal neural reactivity in major depressive disorder (MDD) and may be implicated in genetic vulnerability to MDD. This study investigated electro-cortical reactivity to facial expressions 101 unaffected, adult first degree relatives of probands with MDD and non-relative controls (n = 101). We investigated event-related potentials (ERPs) to five facial expressions of basic emotion: fear, anger, disgust, sadness and happiness under both subliminal (masked) and conscious (unmasked) presentation conditions, and the source localization of group differences...
May 21, 2018: Biological Psychology
https://www.readbyqxmd.com/read/29791297/late-positive-component-event-related-potential-amplitude-predicts-long-term-classroom-based-learning
#2
Katherine W Turk, Ala'a A Elshaar, Rebecca G Deason, Nadine C Heyworth, Corrine Nagle, Bruno Frustace, Sean Flannery, Ann Zumwalt, Andrew E Budson
It is difficult to predict whether newly learned information will be retrievable in the future. A biomarker of long-lasting learning, capable of predicting an individual's future ability to retrieve a particular memory, could positively influence teaching and educational methods. Event-related potentials (ERPs) were investigated as a potential biomarker of long-lasting learning. Prior ERP studies have supported a dual-process model of recognition memory that categorizes recollection and familiarity as distinct memorial processes with distinct ERP correlates...
May 23, 2018: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/29787830/the-utility-of-event-related-potentials-erps-in-understanding-food-related-cognition-a-systematic-review-and-recommendations
#3
REVIEW
Kaylie A Carbine, Rebekah Rodeback, Erin Modersitzki, Marshall Miner, James D LeCheminant, Michael J Larson
Daily dietary decisions have the potential to impact our physical, mental, and emotional health. Event-related potentials (ERPs) can provide insight into cognitive processes, such as attention, working memory, and inhibitory control, that may influence the food-related decisions we make on a daily basis. We conducted a systematic review of the food-related cognition and ERP research in order to summarize the extant literature, identify future research questions, synthesize how food-related ERP components relate to eating habits and appetite, and demonstrate the utility of ERPs in examining food-related cognition...
May 19, 2018: Appetite
https://www.readbyqxmd.com/read/29782071/evaluation-of-idiopathic-olfactory-loss-with-chemosensory-event-related-potentials-and-magnetic-resonance-imaging
#4
Jia Liu, Jayant M Pinto, Ling Yang, Linyin Yao, Xutao Miao, Yongxiang Wei
BACKGROUND: Idiopathic olfactory loss (IOL) accounts for a sizable fraction of olfactory dysfunction, but very little is known about its etiology and electrophysiological changes in the olfactory pathway. METHODS: We analyzed the physiology of IOL using chemosensory event-related potentials (ERPs) (olfactory and trigeminal: oERP and tERP) and olfactory pathway magnetic resonance imaging (MRI) measured in adult patients with IOL and healthy controls. Subjective olfactory function was measured by Toyota and Takagi (T&T) olfactometry and Sniffin' Sticks (SS)...
May 21, 2018: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/29781210/individual-differences-in-decisiveness-erp-correlates-of-response-inhibition-and-error-monitoring
#5
Magdalena Senderecka, Jakub Szewczyk, Szymon Wichary, Małgorzata Kossowska
The aim of the current study was to examine whether and how self-reported decisiveness is associated with response inhibition and performance monitoring. We hypothesized that these two cognitive control mechanisms, both of which are often associated with decision making, would differ in individuals varying in decisiveness. We focused on ERP correlates and behavioral measures of inhibition and error processing in the stop-signal task. We expected a negative relationship between decisiveness and behavioral measures of inhibitory control...
May 20, 2018: Psychophysiology
https://www.readbyqxmd.com/read/29780314/effects-of-age-and-working-memory-load-on-syntactic-processing-an-event-related-potential-study
#6
Graciela C Alatorre-Cruz, Juan Silva-Pereyra, Thalía Fernández, Mario A Rodríguez-Camacho, Susana A Castro-Chavira, Javier Sanchez-Lopez
Cognitive changes in aging include working memory (WM) decline, which may hamper language comprehension. An increase in WM demands in older adults would probably provoke a poorer sentence processing performance in this age group. A way to increase the WM load is to separate two lexical units in an agreement relation (i.e., adjective and noun), in a given sentence. To test this hypothesis, event-related potentials (ERPs) were collected from Spanish speakers (30 older adults, mean age = 66.06 years old; and 30 young adults, mean age = 25...
2018: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29780312/combining-behavioral-and-erp-methodologies-to-investigate-the-differences-between-mcgurk-effects-demonstrated-by-cantonese-and-mandarin-speakers
#7
Juan Zhang, Yaxuan Meng, Catherine McBride, Xitao Fan, Zhen Yuan
The present study investigated the impact of Chinese dialects on McGurk effect using behavioral and event-related potential (ERP) methodologies. Specifically, intra-language comparison of McGurk effect was conducted between Mandarin and Cantonese speakers. The behavioral results showed that Cantonese speakers exhibited a stronger McGurk effect in audiovisual speech perception compared to Mandarin speakers, although both groups performed equally in the auditory and visual conditions. ERP results revealed that Cantonese speakers were more sensitive to visual cues than Mandarin speakers, though this was not the case for the auditory cues...
2018: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29777826/quantifying-fast-optical-signal-and-event-related-potential-relationships-during-a-visual-oddball-task
#8
Nicole Proulx, Ali-Akbar Samadani, Tom Chau
Event-related potentials (ERPs) have previously been used to confirm the existence of the fast optical signal (FOS) but validation methods have mainly been limited to exploring the temporal correspondence of FOS peaks to those of ERPs. The purpose of this study was to systematically quantify the relationship between FOS and ERP responses to a visual oddball task in both time and frequency domains. Near-infrared spectroscopy (NIRS) and electroencephalography (EEG) sensors were co-located over the prefrontal cortex while participants performed a visual oddball task...
May 16, 2018: NeuroImage
https://www.readbyqxmd.com/read/29777418/earliest-radiological-progression-in-glioblastoma-by-multidisciplinary-consensus-review
#9
Roelant S Eijgelaar, Anna M E Bruynzeel, Frank J Lagerwaard, Domenique M J Müller, Freek R Teunissen, Frederik Barkhof, Marcel van Herk, Philip C De Witt Hamer, Marnix G Witte
BACKGROUND: Detection of glioblastoma progression is important for clinical decision-making on cessation or initiation of therapy, for enrollment in clinical trials, and for response measurement in time and location. The RANO-criteria are considered standard for the timing of progression. To evaluate local treatment, we aim to find the most accurate progression location. We determined the differences in progression free survival (PFS) and in tumor volumes at progression (Vprog) by three definitions of progression...
May 18, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29775640/prestimulus-delta-and-theta-contributions-to-equiprobable-go-nogo-processing-in-healthy-ageing
#10
Frances M De Blasio, Robert J Barry
Ongoing EEG activity contributes to ERP outcomes of stimulus processing, and each of these measures is known to undergo (sometimes significant) age-related change. Variation in their relationship across the life-span may thus elucidate mechanisms of normal and pathological ageing. This study assessed the relationships between low-frequency EEG prestimulus brain states, the ERP, and behavioural outcomes in a simple equiprobable auditory Go/NoGo paradigm, comparing these for 20 young (Mage  = 20.4 years) and 20 healthy older (Mage  = 68...
May 15, 2018: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/29775395/after-effect-induced-by-microwave-radiation-in-human-electroencephalographic-signal-a-feasibility-study
#11
Maie Bachmann, Laura Päeske, Andreas A Ioannides, Jaanus Lass, Hiie Hinrikus
PURPOSE: This feasibility study is aimed to clarify the possibility of detection of microwave radiation (MWR) induced event related potential (ERP) in electroencephalographic (EEG) signal. METHODS: To trigger onset and offset effects in EEG, repetitive MWR stimuli were used. Four EEG recordings on a single subject were performed, each about one month apart. The subject was exposed to 450 MHz MWR modulated at 40 Hz at the 1 g peak spatial average specific absorption rate of 0...
May 18, 2018: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/29775183/improving-the-mesoscopic-modeling-of-dna-denaturation-dynamics
#12
Marta Marty-Roda, Oda Dahlen, Titus Sebastiaan van Erp, Santiago Cuesta-López
Although previously developed mesoscopic DNA models have successfully
 reproduced thermodynamic denaturation data, recent studies show that these
 overestimate the rate of denaturation by orders of magnitude. Using adapted PeyrardBishop-Dauxois (PBD) models, we calculated the denaturation rates of several DNA
 hairpins and made comparison with experimental data. We show that the addition of
 a barrier at the onsite potential of the PBD model gives a more accurate description
 of the unzipping dynamics of short DNA sequences...
May 18, 2018: Physical Biology
https://www.readbyqxmd.com/read/29772258/they-all-do-it-will-you-event-related-potential-evidence-of-herding-behavior-in-online-peer-to-peer-lending
#13
Haihong Yu, MengHan Dan, Qingguo Ma, Jia Jin
As herding is a typical characteristic of human behavior, many researchers have found the existence of herding behavior in online peer-to-peer lending through empirical surveys. However, the underlying neural basis of this phenomenon is still unclear. In the current study, we studied the neural activities of herding at decision-making stage and feedback stage using event-related potentials (ERPs). Our results showed that at decision-making stage, larger error related negativity (ERN) amplitude was induced under low-proportion conditions than that of high-proportion conditions...
May 14, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29768189/neural-responses-to-perturbations-in-visual-and-auditory-metronomes-during-sensorimotor-synchronization
#14
Daniel C Comstock, Ramesh Balasubramaniam
Tapping in synchrony to an isochronous rhythm involves several key functions of the sensorimotor system including timing, prediction and error correction. While auditory sensorimotor synchronization (SMS) has been well studied, much less is known about mechanisms involved in visual SMS. By comparing error correction in auditory and visual SMS, it can be determined if the neural mechanisms for detection and correction of synchronization errors are generalized or domain specific. To study this problem, we measured EEG while subjects tapped in synchrony to separate visual and auditory metronomes that both contained small temporal perturbations to induce errors...
May 13, 2018: Neuropsychologia
https://www.readbyqxmd.com/read/29767792/how-face-blurring-affects-body-language-processing-of-static-gestures-in-women-and-men
#15
A M Proverbio, L Ornaghi, V Gabaro
The role of facial coding in body language comprehension was investigated by ERP recordings in 31 participants viewing 800 photographs of gestures (iconic, deictic and emblematic), which could be congruent or incongruent with their caption. Facial information was obscured by blurring in half of the stimuli. The task consisted of evaluating picture/caption congruence. Quicker response times were observed in women than in men to congruent stimuli, and a cost for incongruent vs. congruent stimuli was found only in men...
May 14, 2018: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/29765144/mind-wandering-and-task-focused-attention-erp-correlates
#16
Óscar F Gonçalves, Gabriel Rêgo, Tatiana Conde, Jorge Leite, Sandra Carvalho, Olívia Morgan Lapenta, Paulo S Boggio
Previous studies looking at how Mind Wandering (MW) impacts performance in distinct Focused Attention (FA) systems, using the Attention Network Task (ANT), showed that the presence of pure MW thoughts did not impact the overall performance of ANT (alert, orienting and conflict) performance. However, it still remains unclear if the lack of interference of MW in the ANT, reported at the behavioral level, has a neurophysiological correspondence. We hypothesize that a distinct cortical processing may be required to meet attentional demands during MW...
May 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29765027/polygenic-pleiotropy-and-potential-causal-relationships-between-educational-attainment-neurobiological-profile-and-positive-psychotic-symptoms
#17
Yen-Feng Lin, Chia-Yen Chen, Dost Öngür, Rebecca Betensky, Jordan W Smoller, Deborah Blacker, Mei-Hua Hall
Event-related potential (ERP) components have been used to assess cognitive functions in patients with psychotic illness. Evidence suggests that among patients with psychosis there is a distinct heritable neurophysiologic phenotypic subtype captured by impairments across a range of ERP measures. In this study, we investigated the genetic basis of this "globally impaired" ERP cluster and its relationship to psychosis and cognitive abilities. We applied K-means clustering to six ERP measures to re-derive the globally impaired (n = 60) and the non-globally impaired ERP clusters (n = 323) in a sample of cases with schizophrenia (SCZ = 136) or bipolar disorder (BPD = 121) and healthy controls (n = 126)...
May 16, 2018: Translational Psychiatry
https://www.readbyqxmd.com/read/29763658/event-related-potential-analysis-techniques-for-autism-spectrum-disorders-a-review
#18
REVIEW
Priyalakshmi Sheela, Subha D Puthankattil
Autism Spectrum Disorders (ASD) comprise all pervasive neurodevelopmental diseases marked by deficits in social and communication skills, delayed cognitive development, restricted and repetitive behaviors. The core symptoms begin in early childhood, may continue life-long resulting in poor performance in adult stage. Event-related potential (ERP) is basically a time-locked electroencephalogram signal elicited by various stimuli, related to sensory and cognitive processes. The various ERP based techniques used for the study of ASD are considered in this review...
May 12, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29762104/combined-electrophysiological-and-behavioral-evidence-for-the-suppression-of-salient-distractors
#19
Nicholas Gaspelin, Steven J Luck
Researchers have long debated how salient-but-irrelevant features guide visual attention. Pure stimulus-driven theories claim that salient stimuli automatically capture attention irrespective of goals, whereas pure goal-driven theories propose that an individual's attentional control settings determine whether salient stimuli capture attention. However, recent studies have suggested a hybrid model in which salient stimuli attract visual attention but can be actively suppressed by top-down attentional mechanisms...
May 15, 2018: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/29761951/-research-on-cortical-cross-modal-reorganization-of-children-with-congenital-severe-deafness-after-cochlear-implant
#20
Xianjun Wang, Maojin Liang, Junpeng Zhang, Hua Huang, Yiqing Zheng
Cochlear implant (CI) is the only method for efficacious treatment of congenital severe deafness at present. However, for children with congenital severe deafness after CI, the mechanism of the structural and functional changes of their cerebral cortex is not clear. This study was based on the cross-modal reorganization of deaf patients. Event related potential (ERP) and source localization technique were used to visualize the change of cortical activity in children with congenital severe deafness during 1-year period (0, 1, 3, 6, 9 and 12 months after CI)...
October 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
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