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https://www.readbyqxmd.com/read/28340449/right-hemisphere-pitch-mismatch-negativity-reduction-in-patients-with-major-depression-an-meg-study
#1
Noriaki Hirakawa, Yoji Hirano, Itta Nakamura, Shogo Hirano, Jinya Sato, Naoya Oribe, Takefumi Ueno, Shigenobu Kanba, Toshiaki Onitsuka
BACKGROUND: The mismatch negativity (MMN) component of the event-related potential and its magnetic counterpart, the MMNm, are generated by a mismatch between the physical features of a deviant stimulus and a neuronal sensory-memory trace produced by repetitive standard stimuli. Deficits in the MMN/MMNm have been reported in patients with major depression; however, the results are inconsistent. The present study investigated the pitch-MMNm in patients with major depression using whole-head 306-channel magnetoencephalography (MEG)...
March 19, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28340432/reorganization-of-anterior-and-posterior-hippocampal-networks-associated-with-memory-performance-in-mesial-temporal-lobe-epilepsy
#2
Hong Li, Caihong Ji, Lujia Zhu, Peiyu Huang, Biao Jiang, Xiaojun Xu, Jianzhong Sun, Zhong Chen, Meiping Ding, Minming Zhang, Shuang Wang
OBJECTIVE: To investigate the pattern of functional demarcation of hippocampal network and its relationship with memory performance in mesial temporal lobe epilepsy (mTLE) with unilateral hippocampal sclerosis. METHODS: Resting state fMRI data were acquired from fifteen left mTLE patients, fourteen right mTLE patients and twenty healthy subjects. We explore the hippocampal-cortical alterations and corresponding inter-hemispheric functional connectivity (FC) across anterior and posterior hippocampal networks...
March 4, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28340333/the-randomized-crm-an-approach-to-overcoming-the-long-memory-property-of-the-crm
#3
Joseph S Koopmeiners, Andrew Wey
The primary object of a Phase I clinical trial is to determine the maximum tolerated dose (MTD). Typically, the MTD is identified using a dose-escalation study, where initial subjects are treated at the lowest dose level and subsequent subjects are treated at progressively higher dose levels until the MTD is identified. The continual reassessment method (CRM) is a popular model-based dose-escalation design, which utilizes a formal model for the relationship between dose and toxicity to guide dose finding. Recently, it was shown that the CRM has a tendency to get "stuck" on a dose level, with little escalation or de-escalation in the late stages of the trial, due to the long-memory property of the CRM...
March 1, 2017: Journal of Biopharmaceutical Statistics
https://www.readbyqxmd.com/read/28340321/exploring-the-relationship-between-cognition-and-functional-verbal-reasoning-in-adults-with-severe-traumatic-brain-injury-at-six-months-post-injury
#4
Petra Avramović, Belinda Kenny, Emma Power, Skye McDonald, Robyn Tate, Louise Hunt, Sheila MacDonald, Rob Heard, Leanne Togher
OBJECTIVE(S): This study aims to determine the association between cognitive impairment and functional verbal reasoning in adults with severe traumatic brain injury (TBI), at six months post-injury. METHOD(S): 38 participants with severe TBI were assessed using the four tasks on the Functional Assessment of Verbal Reasoning and Executive Strategies (FAVRES) [1] and a battery of neuropsychological tests at 6 months post injury in a cross-sectional observational study...
March 24, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28340315/systematic-behavioural-observation-of-executive-performance-after-brain-injury
#5
Mark W Lewis, Duncan R Babbage, Janet M Leathem
OBJECTIVE: To develop an ecologically valid measure of executive functioning (i.e. Planning and Organization, Executive Memory, Initiation, Cognitive Shifting, Impulsivity, Sustained and Directed Attention, Error Detection, Error Correction and Time Management) during a functional chocolate brownie cooking task. METHODS: In Study 1, the inter-rater reliability of a novel behavioural observation assessment method was assessed with 10 people with traumatic brain injury (TBI)...
March 24, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28340257/cd8-positive-t-cell-leukoencephalitis-with-astrocytopathy-clinically-presenting-as-neuromyelitis-optica
#6
Diana L Thomas, Jody Manners, Daniel Marker, Joseph Mettenburg, Geoffrey Murdoch, Bryan Stevens, Guoji Wang, Clayton Wiley
We describe a novel disease entity with the clinical and radiologic presentation of neuromyelitis optica (NMO) and widespread CD8-positive T-cell leukoencephalitis and astrocytopathy. The 59-year-old female patient had a complex 2-year neurological history that included early changes in cognition and memory, progressive lower extremity motor dysfunction, and multimodal sensory involvement. MRI of the spinal cord showed increased T2 signal in the central cord extending from C2 through T4. MRI of the brain showed symmetric radial enhancement in periventricular deep white matter without evidence of demyelinating lesions...
March 16, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28340237/pain-and-cognition-in-multiple-sclerosis
#7
R Scherder, N Kant, E Wolf, A C M Pijnenburg, E Scherder
Objective. : The goal of the present study was to examine the relationship between pain and cognition in patients with multiple sclerosis. Design. : Cross-sectional. Setting. : Nursing home and personal environment of the investigators. Subjects. : Two groups of participants were included: 91 patients with multiple sclerosis and 80 matched control participants. Methods. : The level of pain was measured by the following pain scales: Number of Words Chosen-Affective, Colored Analogue Scale for pain intensity and suffering from pain, and the Faces Pain Scale...
March 15, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28340224/the-association-of-context-specific-sitting-time-and-physical-activity-intensity-to-working-memory-capacity-and-academic-achievement-in-young-adults
#8
Mireia Felez-Nobrega, Charles H Hillman, Eva Cirera, Anna Puig-Ribera
To examine combined associations between self-reported context-specific sitting time (ST) and physical activity (PA) with working memory capacity (WMC) and academic achievement in a sample of Spanish adults. Undergraduate students ( n = 371; 21 years ± 3 years, 44% female) were recruited from University of Vic-Central University of Catalonia. Participants completed a 54-item survey that assessed socio-demographic variables (e.g. age, gender, academic year), min/week of light (LPA), moderate (MPA) and vigorous (VPA) intensity PA (International Physical Activity Questionnaire), min/day of domain-specific ST (Last 7 days sedentary behavior questionnaire) and academic performance (grade point average)...
March 18, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/28340167/factors-influencing-cognitive-impairment-in-neuropathic-and-musculoskeletal-pain-and-fibromyalgia
#9
Begoña Ojeda, María Dueñas, Alejandro Salazar, Juan Antonio Mico, Luis Miguel Torres, Inmaculada Failde
Objective.:  To assess cognitive performance of chronic pain (CP) patients diagnosed with three types of pain-neuropathic pain (NP), musculoskeletal (MSK), and fibromyalgia (FM)-and to analyze the factors influencing cognitive difficulties in each group. Methods.:  Two hundred fifty-four CP patients-104 NP, 99 MSK, 51 FM-and 72 pain-free subjects were included in the study. The "Test Your Memory" (TYM) scale was used to assess cognitive performance. Pain intensity was measured by means of the visual analog scale (VAS); the Hospital Anxiety and Depression scale was used to assess mental status, and the Medical Outcome Study (MOS) sleep scale to assess sleep quality...
March 13, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28340064/the-influence-of-state-and-trait-anxiety-on-the-memory-of-pain
#10
Przemyslaw Babel
Objective. : The study aimed to assess the accuracy of memories of both pain and the state anxiety that accompanies experimentally induced pain and to investigate the factors that influence the memory of experimental pain. Methods. : Forty-nine healthy female volunteers participated in the study. The participants received three electrocutaneous pain stimuli during the first phase of the study and rated the pain intensity, pain unpleasantness, and state anxiety they felt at that moment...
March 13, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28339998/executive-functioning-in-pediatric-chronic-pain-do-deficits-exist
#11
Karen E Weiss, Cynthia Harbeck-Weber, Michael J Zaccariello, Jacqueline N Kimondo, Tracy E Harrison, Barbara K Bruce
Objective. : Despite ample research documenting deficits in executive functioning for adults with chronic pain, the literature on pediatric patients with chronic pain is limited and provides mixed results. The current study sought to further investigate the nature of executive dysfunction in this population and also examine the relationships between pain intensity, duration, and catastrophizing with sustained attention, working memory, and self- and parent-report of executive functioning...
March 6, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28339736/extractions-retention-and-stability-the-search-for-orthodontic-truth
#12
Sheldon Peck
Background and objectives: From the beginnings of modern orthodontics, questions have been raised about the extraction of healthy permanent teeth in order to correct malocclusions. A hundred years ago, orthodontic tooth extraction was debated with almost religious intensity by experts on either side of the issue. Sheldon Friel and his mentor Edward H. Angle both had much to say about this controversy. Today, after significant progress in orthodontic practice, similar arguments are being voiced between nonextraction expansionists and those who see the need for tooth extractions in some orthodontic patients...
February 23, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339691/z-guggulsterone-produces-antidepressant-like-effects-in-mice-through-activation-of-the-bdnf-signaling-pathway
#13
Chao Huang, Wen-Feng Hu, Ji-Li Wang, Peng Wang, Yu Gong, Li-Juan Tong, Bo Jiang, Wei Zhang, Yi-Bin Qin, Zhuo Chen, Rong-Rong Yang
Background: Z-guggulsterone, an active compound extracted from the gum resin of the tree commiphora mukul, has been shown to improve animal memory deficits via activating the brain-derived neurotrophic factor (BDNF) signaling pathway. Here, we investigated the antidepressant-like effect of Z-guggulsterone in a chronic unpredictable stress (CUS) mouse model of depression. Methods: The effects of Z-guggulsterone were assessed in mice tail suspension test (TST), forced swimming test (FST)...
February 21, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28339668/immunogenicity-of-a-booster-dose-of-quadrivalent-meningococcal-conjugate-vaccine-in-previously-immunized-hiv-infected-children-and-youth
#14
Meredith G Warshaw, George K Siberry, Paige Williams, Michael D Decker, Patrick Jean-Philippe, Jorge Lujan-Zilbermann
Background.: The US Advisory Committee on Immunization Practices recommends a booster dose of quadrivalent meningococcal conjugate vaccine (MCV4) after initial immunization for patients at high risk for meningococcal infection. Methods.: The International Maternal Pediatric Adolescents AIDS Clinical Trials (IMPAACT) P1065 trial evaluated the use of MCV4 in human immunodeficiency virus (HIV)-infected children and youth. The final step of this trial was an open-label study of an MCV4 booster dose 3...
February 18, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28339635/the-impact-of-zonisamide-on-the-development-and-course-of-alcohol-dependence-in-rabbits-a-pharmaco-eeg-study
#15
Agata Krupa-Burtnik, Ewa Zwierzynska, Anna Kordala, Boguslawa Pietrzak
Aims: Zonisamide is a new anti-epileptic drug whose mechanism of action is associated with neurotransmission systems also involved in the pathogenesis of addiction. Recently, the role of memory processes and the hippocampus (Hp) is underlined in dependence. In our previous study, we determined that zonisamide decreases changes in hippocampal bioelectric activity induced by a single dose of ethanol. Methods: This study uses a pharmaco-EEG method to examine the impact of zonisamide on the development and course of alcohol dependence in rabbits...
February 17, 2017: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/28339575/histaminergic-neurotransmission-as-a-gateway-for-the-cognitive-effect-of-oleoylethanolamide-in-contextual-fear-conditioning
#16
Gustavo Provensi, Roberta Fabbri, Leonardo Munari, Alessia Costa, Elisabetta Baldi, Corrado Bucherelli, Patrizio Blandina, Maria Beatrice Passani
Background: The integrity of the brain histaminergic system is necessary for the unfolding of homeostatic and cognitive processes through the recruitment of alternative circuits with distinct temporal patterns. We recently demonstrated that the fat-sensing lipid mediator oleoylethanolamide indirectly activates histaminergic neurons to exerts its hypophagic effects. The present experiments investigated whether histaminergic neurotransmission is necessary also for the modulation of emotional memory induced by oleoylethanolamide in a contextual fear conditioning paradigm...
January 19, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28339538/thalamic-amnesia-accompanying-disruption-of-pain-memory-a-case-of-right-anterior-thalamic-infarction-and-a-subsequent-vertebral-compression-fracture
#17
Naoki Asano, Shinichiro Maeshima, Sayaka Okamoto, Hideto Okazaki, Shigeru Sonoda
No abstract text is available yet for this article.
December 15, 2016: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28335585/anisotropic-magnetoresistance-of-nano-conductive-filament-in-co-hfo2-pt-resistive-switching-memory
#18
Leilei Li, Yang Liu, Jiao Teng, Shibing Long, Qixun Guo, Meiyun Zhang, Yu Wu, Guanghua Yu, Qi Liu, Hangbing Lv, Ming Liu
Conductive bridge random access memory (CBRAM) has been extensively studied as a next-generation non-volatile memory. The conductive filament (CF) shows rich physical effects such as conductance quantization and magnetic effect. But so far, the study of filaments is not very sufficient. In this work, Co/HfO2/Pt CBRAM device with magnetic CF was designed and fabricated. By electrical manipulation with a partial-RESET method, we controlled the size of ferromagnetic metal filament. The resistance-temperature characteristics of the ON-state after various partial-RESET behaviors have been studied...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28335482/improved-wallis-dodging-algorithm-for-large-scale-super-resolution-reconstruction-remote-sensing-images
#19
Chong Fan, Xushuai Chen, Lei Zhong, Min Zhou, Yun Shi, Yulin Duan
A sub-block algorithm is usually applied in the super-resolution (SR) reconstruction of images because of limitations in computer memory. However, the sub-block SR images can hardly achieve a seamless image mosaicking because of the uneven distribution of brightness and contrast among these sub-blocks. An effectively improved weighted Wallis dodging algorithm is proposed, aiming at the characteristic that SR reconstructed images are gray images with the same size and overlapping region. This algorithm can achieve consistency of image brightness and contrast...
March 18, 2017: Sensors
https://www.readbyqxmd.com/read/28335039/brain-temporal-complexity-in-explaining-the-therapeutic-and-cognitive-effects-of-seizure-therapy
#20
Faranak Farzan, Sravya Atluri, Ye Mei, Sylvain Moreno, Andrea J Levinson, Daniel M Blumberger, Zafiris J Daskalakis
Over 350 million people worldwide suffer from depression, a third of whom are medication-resistant. Seizure therapy remains the most effective treatment in depression, even when many treatments fail. The utility of seizure therapy is limited due to its cognitive side effects and stigma. The biological targets of seizure therapy remain unknown, hindering design of new treatments with comparable efficacy. Seizures impact the brains temporal dynamicity observed through electroencephalography. This dynamicity reflects richness of information processing across distributed brain networks subserving affective and cognitive processes...
March 3, 2017: Brain: a Journal of Neurology
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