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https://www.readbyqxmd.com/read/28633550/right-fronto-temporal-eeg-can-differentiate-the-affective-responses-to-award-winning-advertisements
#1
Regina W Y Wang, Shy-Peih Huarng, Shang-Wen Chuang
Affective engineering aims to improve service/product design by translating the customer's psychological feelings. Award-winning advertisements (AAs) were selected on the basis of the professional standards that consider creativity as a prerequisite. However, it is unknown if AA is related to satisfactory advertising performance among customers or only to the experts' viewpoints towards the advertisements. This issue in the field of affective engineering and design merits in-depth evaluation. We recruited 30 subjects and performed an electroencephalography (EEG) experiment while watching AAs and non-AAs (NAAs)...
April 28, 2017: International Journal of Neural Systems
https://www.readbyqxmd.com/read/28608616/whole-brain-structural-connectivity-in-dyskinetic-cerebral-palsy-and-its-association-with-motor-and-cognitive-function
#2
Júlia Ballester-Plané, Ruben Schmidt, Olga Laporta-Hoyos, Carme Junqué, Élida Vázquez, Ignacio Delgado, Leire Zubiaurre-Elorza, Alfons Macaya, Pilar Póo, Esther Toro, Marcel A de Reus, Martijn P van den Heuvel, Roser Pueyo
Dyskinetic cerebral palsy (CP) has long been associated with basal ganglia and thalamus lesions. Recent evidence further points at white matter (WM) damage. This study aims to identify altered WM pathways in dyskinetic CP from a standardized, connectome-based approach, and to assess structure-function relationship in WM pathways for clinical outcomes. Individual connectome maps of 25 subjects with dyskinetic CP and 24 healthy controls were obtained combining a structural parcellation scheme with whole-brain deterministic tractography...
June 13, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28604786/tinnitus-alters-resting-state-functional-connectivity-rsfc-in-human-auditory-and-non-auditory-brain-regions-as-measured-by-functional-near-infrared-spectroscopy-fnirs
#3
Juan San Juan, Xiao-Su Hu, Mohamad Issa, Silvia Bisconti, Ioulia Kovelman, Paul Kileny, Gregory Basura
Tinnitus, or phantom sound perception, leads to increased spontaneous neural firing rates and enhanced synchrony in central auditory circuits in animal models. These putative physiologic correlates of tinnitus to date have not been well translated in the brain of the human tinnitus sufferer. Using functional near-infrared spectroscopy (fNIRS) we recently showed that tinnitus in humans leads to maintained hemodynamic activity in auditory and adjacent, non-auditory cortices. Here we used fNIRS technology to investigate changes in resting state functional connectivity between human auditory and non-auditory brain regions in normal-hearing, bilateral subjective tinnitus and controls before and after auditory stimulation...
2017: PloS One
https://www.readbyqxmd.com/read/28602887/cross-modal-recruitment-of-auditory-and-orofacial-areas-during-sign-language-in-a-deaf-subject
#4
Juan Martino, Carlos Velasquez, Javier Vázquez-Bourgon, Enrique Marco de Lucas, Elsa Gomez
BACKGROUND: Modern signed languages of the deaf are fully expressive, natural human languages that are perceived visually and produced manually.The literature contains little data concerning human brain organization in conditions of deficient sensory information such as deafness. CASE DESCRIPTION: Here, we describe an original case of a deaf-mute patient with a left temporo-insular low-grade glioma that was operated. The patient underwent awake surgery with intraoperative electrical stimulation mapping, allowing for the first time in the literature, to directly study the cortical and subcortical organization of signed language...
June 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28600534/intracranial-fluid-redistribution-but-no-white-matter-microstructural-changes-during-a-spaceflight-analog
#5
Vincent Koppelmans, Ofer Pasternak, Jacob J Bloomberg, Yiri E De Dios, Scott J Wood, Roy Riascos, Patricia A Reuter-Lorenz, Igor S Kofman, Ajitkumar P Mulavara, Rachael D Seidler
The neural correlates of spaceflight-induced sensorimotor impairments are unknown. Head down-tilt bed rest (HDBR) serves as a microgravity analog because it mimics the headward fluid shift and axial body unloading of spaceflight. We investigated focal brain white matter (WM) changes and fluid shifts during 70 days of 6° HDBR in 16 subjects who were assessed pre (2x), during (3x), and post-HDBR (2x). Changes over time were compared to those in control subjects (n = 12) assessed four times over 90 days. Diffusion MRI was used to assess WM microstructure and fluid shifts...
June 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28599984/prevention-and-management-of-postoperative-seizures-in-neuro-oncology
#6
F Chassoux, E Landre
INTRODUCTION: Epilepsy related to brain tumors is often difficult to treat and may impact the quality of life. We performed a review of current recommendations for the prevention of postoperative seizures and optimizing the anti-epileptic treatment. MATERIAL AND METHODS: Based on studies performed since 2000 we conducted the review by (1) analyzing the incidence of tumoral epilepsy and mechanisms of epileptogenicity; (2) describing the current medical and surgical strategy according to oncologic treatments; (3) discussing the management of postoperative seizures; (4) considering the drug withdrawal after oncologic therapy...
June 6, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28596484/chemotherapy-induced-changes-of-cerebral-activity-in-resting-state-functional-magnetic-resonance-imaging-and-cerebral-white-matter-in-diffusion-tensor-imaging
#7
Caiqin Mo, Hailong Lin, Fangmeng Fu, Lin Lin, Jie Zhang, Meng Huang, Chuan Wang, Yunjing Xue, Qing Duan, Weiwen Lin, Xiangjin Chen
While chemotherapy related cognitive disorder has been described in many studies, but we still lack relatively reliable and objective diagnostic tools, and there are few similar studies in Asian patients. We recruited Asian breast cancer patients to perform a cohort study to uncover chemotherapy related cognitive disorder by using resting-state functioning magnetic resonance imaging (RS-fMRI) and magnetic resonance diffusion tensor imaging (DTI) combined with neuropsychologic assessments. This is the first prospective study which combines RS-fMRI and DTI to detect chemotherapy related cognitive disorder...
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28591822/neural-sources-and-underlying-mechanisms-of-neural-responses-to-heartbeats-and-their-role-in-bodily-self-consciousness-an-intracranial-eeg-study
#8
Hyeong-Dong Park, Fosco Bernasconi, Roy Salomon, Catherine Tallon-Baudry, Laurent Spinelli, Margitta Seeck, Karl Schaller, Olaf Blanke
Recent research has shown that heartbeat-evoked potentials (HEPs), brain activity in response to heartbeats, are a useful neural measure for investigating the functional role of brain-body interactions in cognitive processes including self-consciousness. In 2 experiments, using intracranial electroencephalography (EEG), we investigated (1) the neural sources of HEPs, (2) the underlying mechanisms for HEP generation, and (3) the functional role of HEPs in bodily self-consciousness. In Experiment-1, we found that shortly after the heartbeat onset, phase distributions across single trials were significantly concentrated in 10% of the recording sites, mainly in the insula and the operculum, but also in other regions including the amygdala and fronto-temporal cortex...
June 7, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28585384/modeling-the-c9orf72-repeat-expansion-mutation-using-human-induced-pluripotent-stem-cells
#9
Bhuvaneish T Selvaraj, Matthew R Livesey, Siddharthan Chandran
C9ORF72 repeat expansion is the most frequent causal genetic mutation giving rise to amyotrophic lateral sclerosis (ALS) and fronto-temporal dementia (FTD). The relatively recent discovery of the C9ORF72 repeat expansion in 2011 and the complexity of the mutation have meant that animal models that successfully recapitulate human C9ORF72 repeat expansion-mediated disease are only now emerging. Concurrent advances in the use of patient-derived induced pluripotent stem cells (iPSCs) to model aspects of neurological disease offers an additional approach for the study of C9ORF72 mutation...
July 2017: Brain Pathology
https://www.readbyqxmd.com/read/28583883/preferential-susceptibility-of-limbic-cortices-to-microstructural-damage-in-temporal-lobe-epilepsy-a-quantitative-t1-mapping-study
#10
REVIEW
Boris C Bernhardt, Fatemeh Fadaie, Reinder Vos De Wael, Seok-Jun Hong, Min Liu, Marie C Guiot, David A Rudko, Andrea Bernasconi, Neda Bernasconi
The majority of MRI studies in temporal lobe epilepsy (TLE) have utilized morphometry to map widespread cortical alterations. Morphological markers, such as cortical thickness or grey matter density, reflect combinations of biological events largely driven by overall cortical geometry rather than intracortical tissue properties. Because of its sensitivity to intracortical myelin, quantitative measurement of longitudinal relaxation time (qT1) provides and an in vivo proxy for cortical microstructure. Here, we mapped the regional distribution of qT1 in a consecutive cohort of 24 TLE patients and 20 healthy controls...
June 3, 2017: NeuroImage
https://www.readbyqxmd.com/read/28579941/chronic-ketamine-exposure-causes-white-matter-microstructural-abnormalities-in-adolescent-cynomolgus-monkeys
#11
Qi Li, Lin Shi, Gang Lu, Hong-Luan Yu, Fu-Ki Yeung, Nai-Kei Wong, Lin Sun, Kai Liu, David Yew, Fang Pan, De-Feng Wang, Pak C Sham
Acute and repeated exposures to ketamine mimic aspects of positive, negative, and cognitive symptoms of schizophrenia in humans. Recent studies by our group and others have shown that chronicity of ketamine use may be a key element for establishing a more valid model of cognitive symptoms of schizophrenia. However, current understanding on the long-term consequences of ketamine exposure on brain circuits has remained incomplete, particularly with regard to microstructural changes of white matter tracts that underpin the neuropathology of schizophrenia...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28579400/emotion-regulation-in-mood-and-anxiety-disorders-a-meta-analysis-of-fmri-cognitive-reappraisal-studies
#12
REVIEW
Maria Picó-Pérez, Joaquim Radua, Trevor Steward, José M Menchón, Carles Soriano-Mas
Emotion regulation by means of cognitive reappraisal has been widely studied with functional magnetic resonance imaging (fMRI). To date, several meta-analyses of studies using cognitive reappraisal tasks in healthy volunteers have been carried out, but no meta-analyses have yet been performed on the fMRI data of clinical populations with identified alterations in emotion regulation capacity. We provide a comprehensive meta-analysis of cognitive reappraisal fMRI studies in populations of patients with mood or anxiety disorders, yielding a pooled sample of 247 patients and 262 controls from thirteen independent studies...
June 1, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28558364/structural-and-functional-correlates-of-serum-soluble-il-6-receptor-level-in-patients-with-bipolar-disorder
#13
Pei-Chi Tu, Cheng-Ta Li, Wei-Chen Lin, Mu-Hong Chen, Tung-Ping Su, Ya-Mei Bai
OBJECTIVES: Inflammation is reported to play a crucial role in the pathogenesis of bipolar disorder (BD). Higher serum levels of soluble interleukin-6 receptor (sIL-6R), which forms a ligand-receptor complex with the potent proinflammatory cytokine IL-6, have been consistently observed in patients with BD. However, the effect of sIL-6R on neural structure and function remains unclear. This study investigated the association between serum sIL-6R levels and the structural and functional connectivity (FC) of the brain in patients with BD...
April 21, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28536520/aging-modulates-the-hemispheric-specialization-during-word-production
#14
Elena Hoyau, Naila Boudiaf, Emilie Cousin, Cedric Pichat, Nathalie Fournet, Alexandre Krainik, Assia Jaillard, Monica Baciu
Although older adults exhibit normal accuracy in performing word retrieval and generation (lexical production; e.g., object naming), they are generally slower in responding than younger adults. To maintain accuracy, older adults recruit compensatory mechanisms and strategies. We focused on two such possible compensatory mechanisms, one semantic and one executive. These mechanisms are reflected at inter- and intra-hemispheric levels by various patterns of reorganization of lexical production cerebral networks...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28528965/probing-the-timing-network-a-continuous-theta-burst-stimulation-study-of-temporal-categorization
#15
Juan Carlos Méndez, Lorenzo Rocchi, Marjan Jahanshahi, John Rothwell, Hugo Merchant
Time perception in the millisecond and second ranges is thought to be processed by different neural mechanisms. However, whether there is a sharp boundary between these ranges and whether they are implemented in the same, overlapped or separate brain areas is still not certain. To probe the role of the right dorsolateral prefrontal cortex (dlPFC), the right supplementary motor area (SMA), and the cerebellum on time perception, we temporarily altered their activity on healthy volunteers on separate sessions using transcranial magnetic stimulation with the continuous Theta Burst Stimulation (cTBS) protocol...
May 19, 2017: Neuroscience
https://www.readbyqxmd.com/read/28527912/implicit-variations-of-temporal-predictability-shaping-the-neural-oscillatory-and-behavioural-response
#16
Sophie K Herbst, Jonas Obleser
Being able to predict when an event will occur (temporal predictability) can help us prepare and time our responses. We here sought to delineate the neural and behavioural corollaries of highly implicit, probabilistic temporal predictability in an auditory foreperiod paradigm. To this end, we measured electroencephalography (EEG) and response times in two independent experiments (total N =46). Unbeknownst to participants, we induced a probabilistic variation of cue-target delays (i.e., foreperiods) in a pitch-discrimination task on a noise-embedded tone: The smaller the standard deviation of the underlying foreperiod distribution, the more predictable the time of target occurrence should be...
May 17, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28527790/visual-cortex-signals-a-mismatch-between-regularity-of-auditory-and-visual-streams
#17
Michael Andric, Ben Davis, Uri Hasson
Understanding how humans code for and respond to environmental uncertainty/regularity is a question shared by current computational and neurobiological approaches to human cognition. To date, studies investigating neurobiological systems that track input uncertainty have examined responses to uni-sensory streams. It is not known, however, whether there exist brain systems that combine information about the regularity of input streams presented to different senses. We report an fMRI study that aimed to identify brain systems that relate statistical information across sensory modalities...
May 17, 2017: NeuroImage
https://www.readbyqxmd.com/read/28527090/stroke-like-attack-first-episode-of-sporadic-hemiplegic-migraine
#18
Enrico Ferrante, Valentina Prone, Marco Longoni, Elio Clemente Agostoni
Hemiplegic migraine (HM) is a rare migraine with aura; it can be familiar or sporadic. A 46-years-old man presented left migraine followed by right hemiparesis with bilateral plantar flexion of cutaneous plantar reflex (CPR). Brain CT and CT-angiography were normal. The next day patient got worse. The EEG showed left fronto-temporal cuspidate delta waves and brain MRI showed a minimal hyperintensity at T2-sequences in the left frontal cortex with a minor representation of the cortical veins at susceptibility weighted imaging sequences...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28525569/comparative-effects-of-methylphenidate-modafinil-and-mdma-on-response-inhibition-neural-networks-in-healthy-subjects
#19
André Schmidt, Felix Müller, Patrick C Dolder, Yasmin Schmid, Davide Zanchi, Matthias E Liechti, Stefan Borgwardt
Background: Psychostimulants such as methylphenidate (MPH) and modafinil are increasingly used by healthy people for cognitive enhancement purposes, whereas the acute effect of 3,4-methylenedioxymethamphetamine (MDMA, ecstasy) on cognitive functioning in healthy subjects remains unclear. This study directly compared the acute effects of MPH, modafinil and MDMA on the neural mechanisms underlying response inhibition in healthy subjects. Methods: Using a double-blind within-subject placebo-controlled cross-over design, MPH, modafinil and MDMA were administrated to 21 healthy subjects, while performing a Go/No-Go event-related functional magnetic resonance imaging task to assess brain activation during motor response inhibition...
May 19, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28514490/brain-ultrasound-rehearsal-before-surgery-a-pilot-cadaver-study
#20
Carlo Giussani, Matteo Riva, Valentin Djonov, Simone Beretta, Francesco Prada, Erik Sganzerla
Introduction It has been shown that brain ultrasonography (US) is an efficient tool for improving three-dimensional (3D) spatial orientation during neurosurgical interventions. However, it necessitates specific training as it is highly operator-dependent. To date, neurosurgeons have relied solely on intraoperative practice to improve their mastery of brain US; this has obvious limitations. Herein, we consider whether a study of brain US on human cadavers could enable a training platform for neurosurgeons and residents to be developed...
May 17, 2017: Clinical Anatomy
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