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https://www.readbyqxmd.com/read/27919270/delayed-hyperbaric-oxygen-therapy-for-air-emboli-after-open-heart-surgery-case-report-and-review-of-a-success-story
#1
Eva Niyibizi, Guillaume Elyes Kembi, Claude Lae, Rodrigue Pignel, Tornike Sologashvili
BACKGROUND: The current case describes a rare diagnosis of iatrogenic air emboli after elective cardiopulmonary bypass that was successfully treated with delayed hyperbaric oxygen therapy, with good clinical evolution in spite of rare complications. CASE PRESENTATION: A 35 years old male was admitted to the intensive care unit (ICU) for post-operative management after being placed on cardiopulmonary bypass (CPB) for an elective ventricular septal defect closure and aortic valvuloplasty...
December 5, 2016: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/27918913/reduced-cortical-thickness-in-body-dysmorphic-disorder
#2
Sally A Grace, Ben G Buchanan, Jerome J Maller, Wei Lin Toh, David J Castle, Susan L Rossell
Recent neuroimaging studies in body dysmorphic disorder (BDD) have implicated abnormal structure and function of occipito-temporal and fronto-limbic regions in the potential pathophysiology of the disorder. To date, morphometric investigations have yielded inconsistent results, and have suggested that clinical symptoms may mediate structural brain abnormalities in BDD. We measured Grey Matter (GM) cortical thickness in 20 participants with BDD and 20 healthy control participants matched on age, gender, estimated IQ and handedness...
November 22, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27917748/making-brains-run-faster-are-they-becoming-smarter
#3
Anja Pahor, Norbert Jaušovec
A brief overview of structural and functional brain characteristics related to g is presented in the light of major neurobiological theories of intelligence: Neural Efficiency, P-FIT and Multiple-Demand system. These theories provide a framework to discuss the main objective of the paper: what is the relationship between individual alpha frequency (IAF) and g? Three studies were conducted in order to investigate this relationship: two correlational studies and a third study in which we experimentally induced changes in IAF by means of transcranial alternating current stimulation (tACS)...
December 5, 2016: Spanish Journal of Psychology
https://www.readbyqxmd.com/read/27915210/functional-brain-imaging-of-walking-while-talking-an-fnirs-study
#4
Florian G Metzger, Ann-Christine Ehlis, Florian B Haeussinger, Patrick Schneeweiss, Justin Hudak, Andreas J Fallgatter, Sabrina Schneider
Since functional imaging of whole body movements is not feasible with functional magnetic resonance imaging (fMRI), the present study presents in vivo functional near-infrared spectroscopy (fNIRS) as a suitable technique to measure body movement effects on fronto-temporo-parietal cortical activation in single and dual task paradigms. Previous fNIRS applications in studies addressing whole body movements were typically limited to the assessment of prefrontal brain areas. The current study investigated brain activation in the frontal, temporal and parietal cortex of both hemispheres using functional near-infrared spectroscopy (fNIRS) with two large 4 x 4 probe-sets with 24 channels each during single and dual gait tasks...
November 30, 2016: Neuroscience
https://www.readbyqxmd.com/read/27907071/ontogenetic-change-in-the-temporal-region-of-the-early-permian-parareptile-delorhynchus-cifellii-and-the-implications-for-closure-of-the-temporal-fenestra-in-amniotes
#5
Yara Haridy, Mark J Macdougall, Diane Scott, Robert R Reisz
A juvenile specimen of Delorhynchus cifellii, collected from the Early Permian fissure-fill deposits of Richards Spur, Oklahoma, permits the first detailed study of cranial ontogeny in this parareptile. The specimen, consisting of a partially articulated skull and mandible, exhibits several features that identify it as juvenile. The dermal tuberosities that ornament the dorsal side and lateral edges of the largest skull of D. cifellii specimens, are less prominent in the intermediate sized holotype, and are absent in the new specimen...
2016: PloS One
https://www.readbyqxmd.com/read/27903440/auditory-cortical-delta-entrainment-interacts-with-oscillatory-power-in-multiple-fronto-parietal-networks
#6
Anne Keitel, Robin A A Ince, Joachim Gross, Christoph Kayser
The timing of slow auditory cortical activity aligns to the rhythmic fluctuations in speech. This entrainment is considered to be a marker of the prosodic and syllabic encoding of speech, and has been shown to correlate with intelligibility. Yet, whether and how auditory cortical entrainment is influenced by the activity in other speech-relevant areas remains unknown. Using source-localized MEG data, we quantified the dependency of auditory entrainment on the state of oscillatory activity in fronto-parietal regions...
November 26, 2016: NeuroImage
https://www.readbyqxmd.com/read/27891397/spontaneous-subdural-haematoma-developing-secondary-to-arachnoid-cyst-rupture
#7
Mehmet Onur Yüksel, Mehmet Sabri Gürbüz, Mehmet Senol, Numan Karaarslan
Arachnoid cysts are congenital, benign, non-neoplastic, extra-axial intra-arachnoidal lesions. Arachnoid cysts rarely become symptomatic, with bleeding. Intracranial haemorrhage as a complication of arachnoid cyst is a very rare condition. It is well-known that mid-cranial fossa cysts might cause intracerebral haemorrhage or subdural haematoma secondary to traumas. However, the occurrence of spontaneous subdural haematoma secondary to arachnoid cysts, developing without any trauma, is even rarer. A 17-year-old boy presenting with diplopia and headache, with no history of trauma, was diagnosed with left temporal lobe arachnoid cyst and left fronto-parietal subdural haematoma...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27890810/interaction-of-language-auditory-and-memory-brain-networks-in-auditory-verbal-hallucinations
#8
REVIEW
Branislava Ćurčić-Blake, Judith Ford, Daniela Hubl, Natasza D Orlov, Iris E Sommer, Flavie Waters, Paul Allen, Renaud Jardri, Peter W Woodruff, David Olivier, Christoph Mulert, Todd S Woodward, André Aleman
Auditory verbal hallucinations (AVH) occur in psychotic disorders, but also as a symptom of other conditions and even in healthy people. Several current theories on the origin of AVH converge, with neuroimaging studies suggesting that the language, auditory and memory/limbic networks are of particular relevance. However, reconciliation of these theories with experimental evidence is missing. We review 50 studies investigating functional (EEG and fMRI) and anatomic (diffusion tensor imaging) connectivity in these networks, and explore the evidence supporting abnormal connectivity in these networks associated with AVH...
November 24, 2016: Progress in Neurobiology
https://www.readbyqxmd.com/read/27888083/clinical-and-imaging-evaluation-of-the-transuncus-selective-amygdalo-hippocampectomy
#9
Enrico Ghizoni, Roger Matias, Stefan Lieber, Brunno Machado de Campos, Clarissa Lin Yasuda, João Paulo Sant Ana Santos de Souza, Pamela Castro Pereira, Augusto Amato, Andrei Fernandes Joaquim, Tátila Martins Lopes, Helder Tedeschi, Fernando Cendes
BACKGROUND: Various reports described the transuncus approach (TU) as a selective route to the amygdala and hippocampus, but this approach has not yet being submitted to a solid post operative imaging analysis. The objective of this study was to evaluate the anatomy, surgical technique, postoperative imaging analysis and outcome in a series of temporal lobe epilepsy (TLE) patients who underwent to selective amigdalo-hippocampectomy (SHA) via TU. METHODS: This is a prospective study of 25 consecutive patients who underwent to selective amigdalo-hippocampectomy through TU...
November 22, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27864082/individual-variation-in-intentionality-in-the-mind-wandering-state-is-reflected-in-the-integration-of-the-default-mode-fronto-parietal-and-limbic-networks
#10
Johannes Golchert, Jonathan Smallwood, Elizabeth Jefferies, Paul Seli, Julia M Huntenburg, Franziskus Liem, Mark E Lauckner, Sabine Oligschläger, Boris C Bernhardt, Arno Villringer, Daniel S Margulies
Mind-wandering has a controversial relationship with cognitive control. Existing psychological evidence supports the hypothesis that episodes of mind-wandering reflect a failure to constrain thinking to task-relevant material, as well the apparently alternative view that control can facilitate the expression of self-generated mental content. We assessed whether this apparent contradiction arises because of a failure to consider differences in the types of thoughts that occur during mind-wandering, and in particular, the associated level of intentionality...
November 15, 2016: NeuroImage
https://www.readbyqxmd.com/read/27862666/filling-the-void-enriching-the-feature-space-of-successful-stopping
#11
René J Huster, Signe Schneider, Christina F Lavallee, Stefanie Enriquez-Geppert, Christoph S Herrmann
The ability to inhibit behavior is crucial for adaptation in a fast changing environment and is commonly studied with the stop signal task. Current EEG research mainly focuses on the N200 and P300 ERPs and corresponding activity in the theta and delta frequency range, thereby leaving us with a limited understanding of the mechanisms of response inhibition. Here, 15 functional networks were estimated from time-frequency transformed EEG recorded during processing of a visual stop signal task. Cortical sources underlying these functional networks were reconstructed, and a total of 45 features, each representing spectrally and temporally coherent activity, were extracted to train a classifier to differentiate between go and stop trials...
November 11, 2016: Human Brain Mapping
https://www.readbyqxmd.com/read/27821580/self-grounded-vision-hand-ownership-modulates-visual-location-through-cortical-beta-and-gamma-oscillations
#12
Nathan Faivre, Jonathan Doenz, Michele Scandola, Herberto Dhanis, Javier Bello Ruiz, Fosco Bernasconi, Roy Salomon, Olaf Blanke
: Vision is known to be shaped by context, defined by environmental and bodily signals. In the Taylor illusion, the size of an afterimage projected on one's hand changes according to proprioceptive signals conveying hand position. Here, we assessed whether the Taylor illusion does not just depend on the physical hand position, but also on bodily self-consciousness as quantified through illusory hand ownership. Relying on the somatic rubber hand illusion, we manipulated hand ownership, such that participants embodied a rubber hand placed next to their own hand...
November 7, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27819403/-treatment-of-syringomyelia-in-patients-with-chiari-malformation-and-craniosynostosis-a-case-report-and-review-of-the-literature
#13
A Aransay-Garcia, F J Villarejo-Ortega
INTRODUCTION: Patients with multisutural or single craniosynostosis, often suffer from Chiari malformation and syringomyelia. The surgical management of syringomyelia in these patients is controversial. CASE REPORT: A 3-year-old girl was referred with complex craniosynostosis that had not been corrected surgically. She was asymptomatic despite the cranial MRI showed a Chiari malformation and one year later she developed a cervico-dorso-lumbar syringomyelia. She underwent a decompressive suboccipital craniectomy but subsequently suffered a worsening of syringomyelia...
November 16, 2016: Revista de Neurologia
https://www.readbyqxmd.com/read/27810518/social-cognition-in-juvenile-myoclonic-epilepsy
#14
Filippo S Giorgi, Melania Guida, Lorenzo Caciagli, Cristina Pagni, Chiara Pizzanelli, Enrica Bonanni, Gloria Tognoni, Ubaldo Bonuccelli
OBJECTIVE: Juvenile Myoclonic Epilepsy (JME) is a common genetic generalized epilepsy syndrome. Several studies have detailed cognitive and imaging abnormalities pointing to frontal lobe dysfunction, as well as disadvantageous behavioral traits and poor social outcome, challenging the commonly held view of JME being a benign disorder. Social cognition is the ability to elaborate mental representations of social interactions and to use them correctly in social contexts, and includes Theory of Mind (ToM), which pertains to the attribution of cognitive and affective mental states to self and others and seems to rely on complex fronto-temporal interactions...
December 2016: Epilepsy Research
https://www.readbyqxmd.com/read/27810345/classical-hallucinogens-and-neuroimaging-a-systematic-review-of-human-studies-hallucinogens-and-neuroimaging
#15
REVIEW
Rafael G Dos Santos, Flávia L Osório, José Alexandre S Crippa, Jaime E C Hallak
Serotonergic hallucinogens produce alterations of perceptions, mood, and cognition, and have anxiolytic, antidepressant, and antiaddictive properties. These drugs act as agonists of frontocortical 5-HT2A receptors, but the neural basis of their effects are not well understood. Thus, we conducted a systematic review of neuroimaging studies analyzing the effects of serotonergic hallucinogens in man. Studies published in the PubMed, Lilacs, and SciELO databases until 12 April 2016 were included using the following keywords: "ayahuasca", "DMT", "psilocybin", "LSD", "mescaline" crossed one by one with the terms "mri", "fmri", "pet", "spect", "imaging" and "neuroimaging"...
December 2016: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/27808568/gray-matter-abnormalities-in-opioid-dependent-patients-a-neuroimaging-meta-analysis
#16
Scott C Wollman, Omar M Alhassoon, Matthew G Hall, Mark J Stern, Eric J Connors, Christine L Kimmel, Kenneth E Allen, Rick A Stephan, Joaquim Radua
BACKGROUND: Prior research utilizing whole-brain neuroimaging techniques has identified structural differences in gray matter in opioid-dependent individuals. However, the results have been inconsistent. OBJECTIVES: The current study meta-analytically examines the neuroimaging findings of studies published before 2016 comparing opioid-dependent individuals to drug-naïve controls. METHOD: Exhaustive search of five databases yielded 12 studies that met inclusion criteria...
November 3, 2016: American Journal of Drug and Alcohol Abuse
https://www.readbyqxmd.com/read/27807767/resting-state-eeg-power-and-coherence-vary-between-migraine-phases
#17
Zehong Cao, Chin-Teng Lin, Chun-Hsiang Chuang, Kuan-Lin Lai, Albert C Yang, Jong-Ling Fuh, Shuu-Jiun Wang
BACKGROUND: Migraine is characterized by a series of phases (inter-ictal, pre-ictal, ictal, and post-ictal). It is of great interest whether resting-state electroencephalography (EEG) is differentiable between these phases. METHODS: We compared resting-state EEG energy intensity and effective connectivity in different migraine phases using EEG power and coherence analyses in patients with migraine without aura as compared with healthy controls (HCs). EEG power and isolated effective coherence of delta (1-3...
December 2016: Journal of Headache and Pain
https://www.readbyqxmd.com/read/27798701/neural-correlates-of-attention-to-human-made-sounds-an-erp-study
#18
Katherine Kuhl-Meltzoff Stavropoulos, Leslie J Carver
Previous neuroimaging and electrophysiological studies have suggested that human made sounds are processed differently from non-human made sounds. Multiple groups have suggested that voices might be processed as "special," much like faces. Although previous literature has explored neural correlates of voice perception under varying task demands, few studies have examined electrophysiological correlates of attention while directly comparing human made and non-human made sounds. In the present study, we used event-related potentials (ERPs) to compare attention to human versus non-human made sounds in an oddball paradigm...
2016: PloS One
https://www.readbyqxmd.com/read/27797807/self-induced-intracerebral-gamma-oscillations-in-the-human-cortex
#19
Juliana Corlier, Daphné Rimsky-Robert, Mario Valderrama, Katia Lehongre, Claude Adam, Stéphane Clémenceau, Stéphane Charpier, Julien Bastin, Philippe Kahane, Jean-Philippe Lachaux, Vincent Navarro, Michel Le Van Quyen
Gamma oscillations play a pivotal role in multiple cognitive functions. They enable coordinated activity and communication of local assemblies, while abnormalities in gamma oscillations exist in different neurological and psychiatric diseases. Thus, a specific rectification of gamma synchronization could potentially compensate the deficits in pathological conditions. Previous experiments have shown that animals can voluntarily modulate their gamma power through operant conditioning. Using a closed-loop experimental setup, we show in six intracerebrally recorded epileptic patients undergoing presurgical evaluation that intracerebral power spectrum can be increased in the gamma frequency range (30-80 Hz) at different fronto-temporal cortical sites in human subjects...
December 2016: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/27794540/pink1-and-parkin-are-genetic-modifiers-for-fus-induced-neurodegeneration
#20
Yanbo Chen, Jianwen Deng, Peng Wang, Mengxue Yang, Xiaoping Chen, Li Zhu, Jianghong Liu, Bingwei Lu, Yan Shen, Kazuo Fushimi, Qi Xu, Jane Y Wu
Dysregulation of FUS gene expression is associated with fronto-temporal lobar degeneration (FTLD), and missense mutations in the FUS gene have been identified in patients affected by amyotrophic lateral sclerosis (ALS). However, molecular and cellular defects underlying FUS proteinopathy remain to be elucidated. Here, we examined whether genes important for mitochondrial quality control play a role in FUS proteinopathy. In our genetic screening, Pink1 and Park genes were identified as modifiers of neurodegeneration phenotypes induced by wild type (Wt) or ALS-associated P525L-mutant human FUS...
October 29, 2016: Human Molecular Genetics
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