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https://www.readbyqxmd.com/read/28441408/short-term-internet-search-using-makes-people-rely-on-search-engines-when-facing-unknown-issues
#1
Yifan Wang, Lingdan Wu, Liang Luo, Yifen Zhang, Guangheng Dong
The Internet search engines, which have powerful search/sort functions and ease of use features, have become an indispensable tool for many individuals. The current study is to test whether the short-term Internet search training can make people more dependent on it. Thirty-one subjects out of forty subjects completed the search training study which included a pre-test, a six-day's training of Internet search, and a post-test. During the pre- and post- tests, subjects were asked to search online the answers to 40 unusual questions, remember the answers and recall them in the scanner...
2017: PloS One
https://www.readbyqxmd.com/read/28441059/effectiveness-of-neuromuscular-training-based-on-the-neuromuscular-risk-profile
#2
Timothy E Hewett, Kevin R Ford, Yingying Y Xu, Jane Khoury, Gregory D Myer
BACKGROUND: The effects of targeted neuromuscular training (TNMT) on movement biomechanics associated with the risk of anterior cruciate ligament (ACL) injuries are currently unknown. Purpose/Hypotheses: To determine the effectiveness of TNMT specifically designed to increase trunk control and hip strength. The hypotheses were that (1) TNMT would decrease biomechanical and neuromuscular factors related to an increased ACL injury risk and (2) TNMT would decrease these biomechanical and neuromuscular factors to a greater extent in athletes identified as being at a high risk for future ACL injuries...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28440866/a-prospective-comparison-of-how-the-level-of-response-to-alcohol-and-impulsivity-relate-to-future-dsm-iv-alcohol-problems-in-the-coga-youth-panel
#3
Marc A Schuckit, Tom L Smith, George Danko, Robert Anthenelli, Lara Schoen, Mari Kawamura, John Kramer, Danielle M Dick, Zoe Neale, Samuel Kuperman, Vivia McCutcheon, Andrey P Anokhin, Victor Hesselbrock, Michie Hesselbrock, Kathleen Bucholz
BACKGROUND: Alcohol problems reflect both environmental and genetic characteristics that often operate through endophenotypes like low levels of response (low LRs) to alcohol and higher impulsivity. Relationships of these preexisting characteristics to alcohol problems have been studied, but few analyses have included both low LR and impulsivity in the same model. METHODS: We extracted prospective data from 1,028 participants in the Prospective Youth Sample of the Collaborative Study for the Genetics of Alcoholism (COGA)...
April 25, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28440353/the-safety-and-feasibility-of-diagnostic-acoustic-radiation-force-impulse-elastography-used-for-eyes-a-preliminary-in-vivo-study
#4
Li Zha, Ke Qi Chen, Xiao Zhi Zheng, Jing Wu
AIMS: To assess the safety and feasibility of acoustic radiation force impulse (ARFI) elastography in the eyes of rats. Material and methods: One hundred and twenty-six SD rats were divided into 7 groups. Group 1 was the control group and Group 2 to Group 7 were investigated by ARFI elastography using increased powers of 5%, 10%, 20%, 50%, and 100% and repetitions of 5 or 10. The changes of ocular architecture structures and functions were examined by phthalmoscopic, histopathologic, and light reflex examination, and the expression level of IL-6, IL-8, and TNF-α was determined in days 1, 3, and 7 after ARFI elastography, respectively...
April 22, 2017: Medical Ultrasonography
https://www.readbyqxmd.com/read/28440106/identifying-early-markers-of-late-onset-attention-deficit-and-hyperactivity-impulsivity-symptoms
#5
Aja Louise Murray, Manuel Eisner, Ingrid Obsuth, Denis Ribeaud
OBJECTIVE: In recent years, there has been an increased focus on "late onset" ADHD, referring to the onset of symptoms beyond childhood, into adolescence and adulthood. We aimed to identify childhood predictors of ADHD symptom increases over development. METHOD: We used growth mixture modeling to evaluate predictors of a "late onset" symptom trajectories in a longitudinal cohort study of youth measured at eight points from ages 7 to 15. RESULTS: Individuals with high levels of sensation seeking at age 7 were more likely to show a trajectory of ADHD symptoms characterized by increasing levels from age 7 than persistently low symptom levels...
April 1, 2017: Journal of Attention Disorders
https://www.readbyqxmd.com/read/28439741/effect-of-victimization-on-impulse-control-and-binge-drinking-among-serious-juvenile-offenders-from-adolescence-to-young-adulthood
#6
Jordan P Davis, Tara M Dumas, Benjamin L Berey, Gabriel J Merrin, Joseph R Cimpian, Brent W Roberts
A vast literature has found longitudinal effects of early life stress on substance use and self-regulatory processes. These associations may vary by period-specific development among youth involved in the juvenile justice system. The current study used an accelerated longitudinal design and auto-regressive latent trajectory with structure residuals (ALT-SR) model to examine the within-person cross-lagged associations between binge drinking, impulse control, and victimization from 15 to 25 years of age. A large sample (N = 1100) of justice-involved youth were followed longitudinally for 7 years (M age baseline  = 15...
April 24, 2017: Journal of Youth and Adolescence
https://www.readbyqxmd.com/read/28439293/socio-demographic-characteristics-clinical-profile-and-prevalence-of-existing-mental-illness-among-suicide-attempters-attending-emergency-services-at-two-hospitals-in-hawassa-city-south-ethiopia-a-cross-sectional-study
#7
Moges Ayehu, Tarekegn Solomon, Kinfe Lemma
BACKGROUND: Suicide is a major public health problem worldwide. It contributes for more than one million deaths each year. Since previous suicidal attempt was considered as the best predictor of future suicide, identifying factors behind suicidal attempt are helpful to design suicide prevention strategies. The aim of this study was to assess socio-demographic characteristics, clinical profile and prevalence of existing mental illness among patients presenting with suicidal attempt to emergency services of general hospitals in South Ethiopia...
2017: International Journal of Mental Health Systems
https://www.readbyqxmd.com/read/28439100/ventral-striatal-regulation-of-crem-mediates-impulsive-action-and-drug-addiction-vulnerability
#8
M L Miller, Y Ren, H Szutorisz, N A Warren, C Tessereau, G Egervari, A Mlodnicka, M Kapoor, B Chaarani, C V Morris, G Schumann, H Garavan, A M Goate, M J Bannon, J M Halperin, Y L Hurd
Impulsivity, a multifaceted behavioral hallmark of attention-deficit/hyperactivity disorder (ADHD), strongly influences addiction vulnerability and other psychiatric disorders that incur enormous medical and societal burdens yet the neurobiological underpinnings linking impulsivity to disease remain poorly understood. Here we report the critical role of ventral striatal cAMP-response element modulator (CREM) in mediating impulsivity relevant to drug abuse vulnerability. Using an ADHD rat model, we demonstrate that impulsive animals are neurochemically and behaviorally more sensitive to heroin and exhibit reduced Crem expression in the nucleus accumbens core...
April 25, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28438513/rapid-response-impulsivity-predicts-depression-and-ptsd-symptomatology-at-1-year-follow-up-in-blast-exposed-service-members
#9
James M Bjork, Thomas K Burroughs, Laura M Franke, Treven C Pickett, Sade E Johns, F Gerard Moeller, William C Walker
OBJECTIVE: To determine if elevated rapid-response impulsivity following blast exposure (as a putative marker of ventral prefrontal cortex (vPFC) damage) is predictive of future elevated affective symptomatology in blast-exposed service members. DESIGN: Longitudinal design with neurocognitive testing at initial assessment and one-year follow-up assessment of psychiatric symptomatology by telephone interview. SETTING: Veterans Administration medical centers and post-deployment assessment centers at military bases...
April 21, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28438504/agomelatine-protects-against-neuronal-damage-without-preventing-epileptogenesis-in-the-kainate-model-of-temporal-lobe-epilepsy
#10
Jana Tchekalarova, Dimitrinka Atanasova, Zlatina Nenchovska, Milena Atanasova, Lidia Kortenska, Rumyana Gesheva, Nikolai Lazarov
Recent studies about the novel antidepressant agomelatine, which is a mixed MT1 and MT2 melatonin receptor agonist and 5HT2C serotonin receptor antagonist possessing an anticonvulsant and neuroprotective action, suggest that it may have potential to contribute against epileptogenesis and epilepsy-induced memory impairment. In order to ascertain whether protection of some brain structures could suppress epileptogenesis, in the present study, we evaluated the effect of chronic post-status treatment with agomelatine on epileptogenesis, behavioral and neuronal damage induced by kainate acid (KA) status epilepticus (SE)...
April 21, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28438467/the-role-of-impulsivity-in-psychostimulant-and-stress-induced-dopamine-release-review-of-human-imaging-studies
#11
REVIEW
Wendy M Bosker, Irene Neuner, N Jon Shah
Drug addiction is a debilitating disorder and its pivotal problem is the high relapse rate. To solve this problem, the aim is to prevent people from becoming addicted in the first place. One of the key questions that is still unanswered is why some people become addicted to drugs and others, who take drugs regularly, do not. In recent years extensive research has been done to untangle the many factors involved in this disorder. Here, we review some of the factors that are related to dopamine, i.e., impulsivity and stress (hormones), and aim to integrate this into a neurobiological model...
April 21, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28437999/novel-programmable-microwave-photonic-filter-with-arbitrary-filtering-shape-and-linear-phase
#12
Xiaoqi Zhu, Feiya Chen, Huanfa Peng, Zhangyuan Chen
We propose and demonstrate a novel optical frequency comb (OFC) based microwave photonic filter which is able to realize arbitrary filtering shape with linear phase response. The shape of filter response is software programmable using finite impulse response (FIR) filter design method. By shaping the OFC spectrum using a programmable waveshaper, we can realize designed amplitude of FIR taps. Positive and negative sign of FIR taps are achieved by balanced photo-detection. The double sideband (DSB) modulation and symmetric distribution of filter taps are used to maintain the linear phase condition...
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28437757/abnormal-loading-and-functional-deficits-are-present-in-both-limbs-before-and-after-unilateral-knee-arthroplasty
#13
A J Metcalfe, C J Stewart, N J Postans, P R Biggs, G M Whatling, C A Holt, A P Roberts
Unilateral knee replacement is often followed by a contralateral replacement in time and the biomechanics of the other knee before and after knee replacement remains poorly understood. The aim of this paper is to distinguish the features of arthritic gait in the affected and unaffected legs relative to a normal population and to assess the objective recovery of gait function post-operatively, with the aim of defining patients at risk of poor post-operative function. Twenty patients with severe knee OA but no pain or deformity in any other lower limb joint were compared to twenty healthy subjects of the same age...
April 4, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28437016/electromechanical-nanogenerator-cell-interaction-modulates-cell-activity
#14
Gonzalo Murillo, Andreu Blanquer, Carolina Vargas-Estevez, Lleonard Barrios, Elena Ibáñez, Carme Nogués, Jaume Esteve
Noninvasive methods for in situ electrical stimulation of human cells open new frontiers to future bioelectronic therapies, where controlled electrical impulses could replace the use of chemical drugs for disease treatment. Here, this study demonstrates that the interaction of living cells with piezoelectric nanogenerators (NGs) induces a local electric field that self-stimulates and modulates their cell activity, without applying an additional chemical or physical external stimulation. When cells are cultured on top of the NGs, based on 2D ZnO nanosheets, the electromechanical NG-cell interactions stimulate the motility of macrophages and trigger the opening of ion channels present in the plasma membrane of osteoblast-like cells (Saos-2) inducing intracellular calcium transients...
April 24, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28436832/ventral-striatal-activity-links-adversity-and-reward-processing-in-children
#15
Niki H Kamkar, Daniel J Lewis, Wouter van den Bos, J Bruce Morton
Adversity impacts many aspects of psychological and physical development including reward-based learning and decision-making. Mechanisms relating adversity and reward processing in children, however, remain unclear. Here, we show that adversity is associated with potentiated learning from positive outcomes and impulsive decision-making, but unrelated to learning from negative outcomes. We then show via functional magnetic resonance imaging that the link between adversity and reward processing is partially mediated by differences in ventral striatal response to rewards...
April 15, 2017: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/28436631/-video-head-impulse-test-for-evaluation-of-vestibular-function-in-patients-with-vestibular-neuritis-and-benign-paroxysmal-positional-vertigo
#16
Qiongfeng Guan, Lisan Zhang, Wenke Hong, Yi Yang, Zhaoying Chen, Dan Zhang, Xingyue Hu
Objective: To assess the clinical application of video head impulse test (vHIT) for vestibular function in vestibular neuritis (VN) and benign paroxysmal positional vertigo (BPPV) patients. Methods: Thirty-three patients with VN and 43 patients with BPPV were enrolled from Sir Run Run Shaw Hospital and Ningbo Second Hospital from March 15 to September 10, 2015; and 50 healthy controls were also enrolled in the study. vHIT was used to quantitatively test the vestibulo-ocular reflex (VOR) gains of a pair of horizontal semicircular canals...
January 25, 2017: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/28436342/comparison-of-neural-substrates-of-temporal-discounting-between-youth-with-autism-spectrum-disorder-and-with-obsessive-compulsive-disorder
#17
C O Carlisi, L Norman, C M Murphy, A Christakou, K Chantiluke, V Giampietro, A Simmons, M Brammer, D G Murphy, D Mataix-Cols, K Rubia
BACKGROUND: Autism spectrum disorder (ASD) and obsessive-compulsive disorder (OCD) share abnormalities in hot executive functions such as reward-based decision-making, as measured in the temporal discounting task (TD). No studies, however, have directly compared these disorders to investigate common/distinct neural profiles underlying such abnormalities. We wanted to test whether reward-based decision-making is a shared transdiagnostic feature of both disorders with similar neurofunctional substrates or whether it is a shared phenotype with disorder-differential neurofunctional underpinnings...
April 24, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28435126/impulsivity-in-spontaneously-hypertensive-rats-within-subjects-comparison-of-sensitivity-to-delay-and-to-amount-of-reinforcement
#18
Vladimir Orduña, Eduardo Mercado
Previous research has shown that spontaneously hypertensive rats (SHR) display higher levels of impulsive choice behavior, which is accompanied by a higher sensitivity to the delay of reinforcement, and by a normal sensitivity to the amount of reinforcement. Because those results were based on three different samples of subjects, in the present report we evaluated these three processes in the same individuals. SHR and WIS rats were exposed to concurrent-chains schedules in which the terminal links were manipulated to assess impulsivity, sensitivity to delay, and sensitivity to amount...
April 20, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28434995/an-sir-dengue-transmission-model-with-seasonal-effects-and-impulsive-control
#19
Joseph Páez Chávez, Thomas Götz, Stefan Siegmund, Karunia Putra Wijaya
In recent decades, Dengue fever and its deadly complications, such as Dengue hemorrhagic fever, have become one of the major mosquito-transmitted diseases, with an estimate of 390 million cases occurring annually in over 100 tropical and subtropical countries, most of which belonging to the developing world. Empirical evidence indicates that the most effective mechanism to reduce Dengue infections is to combat the disease-carrying vector, which is often implemented via chemical pesticides to destroy mosquitoes in their adult or larval stages...
April 20, 2017: Mathematical Biosciences
https://www.readbyqxmd.com/read/28434177/eating-disorders-and-food-addiction-in-men-with-heroin-use-disorder-a-controlled-study
#20
Fatih Canan, Servet Karaca, Suna Sogucak, Omer Gecici, Murat Kuloglu
PURPOSE: We aimed to determine the prevalence estimates of binge eating disorder, bulimia nervosa, anorexia nervosa, and food addiction in men with heroin use disorder and a matched sample of control participants. METHODS: A group of 100 men with heroin use disorder, consecutively admitted to a detoxification and therapy unit, were screened for DSM-5 eating disorders, along with a group of 100 male controls of similar age, education, and body mass index. The Yale Food Addiction Scale (YFAS), the Barratt Impulsivity Scale-version 11, and the Eating Attitudes Test were used for data collection...
April 22, 2017: Eating and Weight Disorders: EWD
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