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https://www.readbyqxmd.com/read/29150296/structural-mri-based-measures-of-neuroplasticity-in-an-extended-amygdala-network-as-a-target-for-attention-bias-modification-treatment-outcome
#1
Jacob Aday, Joshua M Carlson
Increased attentional bias to threat has been identified as a causal mechanism in the development of anxiety. As such, attention bias modification (ABM) was conceived as a treatment option where anxiety is alleviated through a computerized cognitive training regimen that reduces an individual's attentional bias to threat. Although ABM appears to be a promising treatment option for anxiety, the mechanism of action by which the treatment is effective is unknown. We hypothesize that effective ABM treatment is associated with neuroplasticity-related structural changes in an extended amygdala - prefrontal cortex network that can be detected with standard T1-weighted magnetic resonance imaging (MRI)...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29149177/new-brain-lesions-with-no-impact-on-physical-disability-can-impact-cognition-in-early-multiple-sclerosis-a-ten-year-longitudinal-study
#2
D Wybrecht, F Reuter, F Pariollaud, W Zaaraoui, A Le Troter, A Rico, S Confort-Gouny, E Soulier, M Guye, A Maarouf, J-P Ranjeva, J Pelletier, B Audoin
OBJECTIVE: In early multiple sclerosis, although brain T2 lesions accrual are hallmark of the disease, only weak correlations were found between T2 lesions accrual and EDSS progression, the disability scale commonly used in multiple sclerosis studies. This may be related to the very poor sensitivity of EDSS to cognitive dysfunctions that may occur and progress from the first stage of the disease. In the present study, we aimed to demonstrate that cognitive deficits progress during the first ten years of MS and are significantly impacted by new T2 lesions...
2017: PloS One
https://www.readbyqxmd.com/read/29147817/only-efficient-emotional-stimuli-affect-the-content-of-working-memory-during-free-recollection-from-natural-scenes
#3
Arianna Buttafuoco, Tiziana Pedale, Tony W Buchanan, Valerio Santangelo
Emotional events are thought to have privileged access to attention and memory, consuming resources needed to encode competing emotionally neutral stimuli. However, it is not clear whether this detrimental effect is automatic or depends on the successful maintenance of the specific emotional object within working memory. Here, participants viewed everyday scenes including an emotional object among other neutral objects followed by a free-recollection task. Results showed that emotional objects-irrespective of their perceptual saliency-were recollected more often than neutral objects...
November 17, 2017: Cognitive Processing
https://www.readbyqxmd.com/read/29145254/individualized-prevention-against-hypertension-based-on-traditional-chinese-medicine-constitution-theory-a-large-community-based-retrospective-strobe-compliant-study-among-chinese-population
#4
Ying Li, Xiao-Hui Li, Xin Huang, Lu Yin, Cheng-Xian Guo, Chang Liu, Yong-Mei He, Xing Liu, Hong Yuan
Traditional Chinese Medicine Constitution (TCMC) theory states that individuals with a biased TCMC are more likely to suffer from specific diseases. However, little is known regarding the influence of TCMC on susceptibility to hypertension. The aim of this study is to examine the possible relationship between TCMC and hypertension. Retrospective evaluation and observation were performed using the STROBE guidelines checklist. A large community-based cross-sectional study was conducted between 2009 and 2013 in Changsha, China...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29142112/give-one-species-the-task-to-come-up-with-a-theory-that-spans-them-all-what-good-can-come-out-of-that
#5
REVIEW
Hanna Kokko
Does the progress in understanding evolutionary theory depend on the species that is doing the investigation? This question is difficult to answer scientifically, as we are dealing with an n = 1 scenario: every individual who has ever written about evolution is a human being. I will discuss, first, whether we get the correct answer to questions if we begin with ourselves and expand outwards, and second, whether we might fail to ask all the interesting questions unless we combat our tendencies to favour taxa that are close to us...
November 29, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29140930/attention-bias-modification-for-children-what-should-we-make-of-a-null-finding
#6
Louise Sharpe
No abstract text is available yet for this article.
November 13, 2017: Pain
https://www.readbyqxmd.com/read/29138699/for-better-or-worse-the-effect-of-prismatic-adaptation-on-auditory-neglect
#7
Isabel Tissieres, Mona Elamly, Stephanie Clarke, Sonia Crottaz-Herbette
Patients with auditory neglect attend less to auditory stimuli on their left and/or make systematic directional errors when indicating sound positions. Rightward prismatic adaptation (R-PA) was repeatedly shown to alleviate symptoms of visuospatial neglect and once to restore partially spatial bias in dichotic listening. It is currently unknown whether R-PA affects only this ear-related symptom or also other aspects of auditory neglect. We have investigated the effect of R-PA on left ear extinction in dichotic listening, space-related inattention assessed by diotic listening, and directional errors in auditory localization in patients with auditory neglect...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/29138476/visuospatial-attention-in-the-lateralised-brain-of-pigeons-a-matter-of-ontogenetic-light-experiences
#8
Sara Letzner, Onur Güntürkün, Stephanie Lor, Robert Jan Pawlik, Martina Manns
The ontogenetic mechanisms leading to complementary hemispheric specialisations of the two brain halves are poorly understood. In pigeons, asymmetrical light stimulation during development triggers the left-hemispheric dominance for visuomotor control but light effects on right-hemispheric specialisations are largely unknown. We therefore tested adult pigeons with and without embryonic light experience in a visual search task in which the birds pecked peas regularly scattered on an area in front of them. Comparing the pecking pattern of both groups indicates that the embryonic light conditions differentially influence biased visuospatial attention under mono- and binocular seeing conditions...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29136565/attentional-bias-toward-alcohol-stimuli-as-a-predictor-of-treatment-retention-in-cocaine-dependence-and-alcohol-user-patients
#9
Carmen Díaz-Batanero, Sara Domínguez-Salas, Enrique Moraleda, Fermín Fernández-Calderón, Oscar M Lozano
BACKGROUND: Attentional bias towards substance-related stimuli has shown to be involved in the development and maintenance of cocaine dependence. The relationship between alcohol use and cocaine dependence shown in literature justify the need of study these two substances jointly. METHODS: This paper analyzes patterns of attentional bias in 71 patients with cocaine dependence and compares these patterns according to whether occasional or problematic concurrent alcohol use is taken into account...
November 6, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29135364/mothers-neural-and-behavioral-responses-to-their-infants-distress-cues-the-role-of-secure-base-script-knowledge
#10
Ashley M Groh, Katherine C Haydon
This research examined mothers' secure base script knowledge-reflected in the ability to generate narratives in which attachment-relevant problems are recognized, competent help is offered, and problems are resolved-and its significance for early-stage processing of infants' distress cues, using event-related potentials in an emotion oddball task. Mothers with lower secure base script knowledge exhibited (a) a heightened P3b response-reflective of greater allocation of cognitive resources-to their infants' distressed (but not happy) target facial expressions; (b) a larger P3b response to their infants' distressed (compared with happy) target facial expressions, which is indicative of allocating disproportional attentional resources to processing their infants' distress; and (c) poorer accuracy in identifying their infants' distressed target facial expressions...
November 1, 2017: Psychological Science
https://www.readbyqxmd.com/read/29132267/spatial-bias-induced-by-simple-addition-and-subtraction-from-eye-movement-evidence
#11
Rongjuan Zhu, Yangmei Luo, Xuqun You, Ziyu Wang
The associations between number and space have been intensively investigated. Recent studies indicated that this association could extend to more complex tasks, such as mental arithmetic. However, the mechanism of arithmetic-space associations in mental arithmetic was still a topic of debate. Thus, in the current study, we adopted an eye-tracking technology to investigate whether spatial bias induced by mental arithmetic was related with spatial attention shifts on the mental number line or with semantic link between the operator and space...
January 1, 2017: Perception
https://www.readbyqxmd.com/read/29131502/racial-identity-aesthetic-surgery-and-yor%C3%A3-b%C3%A3-african-values
#12
Ademola K Fayemi
The question of racial identity in the process and outcome of aesthetic surgery is gaining increasing attention in bioethical discourse. This paper attempts an ethical examination of the racial identity issues involved in aesthetic surgery. Dominant moral values in Western culture are explored in the evaluation of aesthetic surgery. The paper argues that African values are yet to receive the universal attention they arguably deserve especially in the rethinking of values underlying aesthetic surgery as racial transformation...
November 12, 2017: Developing World Bioethics
https://www.readbyqxmd.com/read/29128522/biological-evidence-for-attention-bias-to-food-emotional-dysregulation-disinhibition-and-deficient-somatosensory-awareness-in-obesity-with-binge-eating-disorder
#13
Roni Aviram-Friedman, Nerys Astbury, Christopher N Ochner, Isobel Contento, Allan Geliebter
OBJECTIVES: To refine the biobehavioral markers of binge eating disorder (BED). METHODS: We conducted fMRI brain scans using images of high energy processed food (HEPF), low energy unprocessed food (LEUF), or non-foods (NF) in 42 adults (obese with BED [obese -BED; n=13] and obese with no BED [obese non-BED; n=29]) selected via ads. Two blood oxygenated level dependent (BOLD) signal contrast maps were examined: food versus nonfood, and HEPF versus LEUF. In addition, score differences on the disinhibition scale were correlated with BOLD signals...
November 8, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29127945/attention-and-interpretation-bias-modification-treatment-for-social-anxiety-disorder-a-randomized-clinical-trial-of-efficacy-and-synergy
#14
Reut Naim, Yogev Kivity, Yair Bar-Haim, Jonathan D Huppert
BACKGROUND AND OBJECTIVES: Attention bias modification treatment (ABMT) and cognitive bias modification of interpretation (CBM-I) both have demonstrated efficacy in alleviating social anxiety, but how they compare with each other, their combination, and with a combined control condition has not been studied. We examined their relative and combined efficacy compared to control conditions in a randomized controlled trial (RCT). METHODS: Ninety-five adults diagnosed with social anxiety disorder (SAD), were randomly allocated to 4 groups: ABMT + CBM-I control (hereafter ABMT; n = 23), CBM-I + ABMT control (hereafter CBM-I; n = 24), combined ABMT + CBM-I (n = 23), and combined control (n = 25)...
October 24, 2017: Journal of Behavior Therapy and Experimental Psychiatry
https://www.readbyqxmd.com/read/29126127/conservatism-and-the-neural-circuitry-of-threat-economic-conservatism-predicts-greater-amygdala-bnst-connectivity-during-periods-of-threat-vs-safety
#15
Walker S Pedersen, L Tugan Muftuler, Christine L Larson
Political conservatism is associated with an increased negativity bias, including increased attention and reactivity toward negative and threatening stimuli. Although the amygdala has been implicated in the human response to threatening stimuli, no studies to date have investigated whether conservatism is associated with altered amygdala function toward threat. Furthermore, although an influential theory (Davis et al., 2010) posits that connectivity between the amygdala and bed nucleus of the stria terminalis (BNST) is important in initiating the response to sustained or uncertain threat, whether individual differences in conservatism modulate this connectivity is unknown...
November 6, 2017: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/29126109/do-prospective-payment-systems-ppss-lead-to-desirable-providers-incentives-and-patients-outcomes-a-systematic-review-of-evidence-from-developing-countries
#16
Si Ying Tan, G J Melendez-Torres
The reform of provider payment systems, from retrospective to prospective payment, has been heralded as the right move to contain costs in the light of rising health expenditures in many countries. However, there are concerns on quality trade-off. The heightened attention given to prospective payment system (PPS) reforms and the rise of empirical evidence regarding PPS interventions among developing countries suggest that a systematic review is necessary to understand the effects of PPS reforms in developing countries...
November 6, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/29125840/are-there-physicochemical-differences-between-allosteric-and-competitive-ligands
#17
Richard D Smith, Jing Lu, Heather A Carlson
Previous studies have compared the physicochemical properties of allosteric compounds to non-allosteric compounds. Those studies have found that allosteric compounds tend to be smaller, more rigid, more hydrophobic, and more drug-like than non-allosteric compounds. However, previous studies have not properly corrected for the fact that some protein targets have much more data than other systems. This generates concern regarding the possible skew that can be introduced by the inherent bias in the available data...
November 10, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/29122653/validation-of-an-automated-bilateral-feet-cold-pressor-test
#18
Petra Bachmann, Xinwei Zhang, Mauro F Larra, Dagmar Rebeck, Karsten Schönbein, Klaus P Koch, Hartmut Schächinger
The Cold Pressor Test (CPT) is often used in psychobiological research. However, the classical CPT version (unilateral hand immersion into ice-water) involves some disadvantages: hands may be needed for further applications, attentional drift towards the affected sensory hemi-field and/or physiological activation of the contralateral hemisphere may produce a laterality bias. Furthermore, instruction-induced motor activity may bias physiologic reactivity. To avoid these problems, a fully automated bilateral feet CPT was developed and tested for validity and feasibility...
November 6, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/29121517/suicide-risk-reduction-in-youths-with-attention-deficit-hyperactivity-disorder-prescribed-methylphenidate-a-taiwan-nationwide-population-based-cohort-study
#19
Sophie Hsin-Yi Liang, Yao-Hsu Yang, Ting-Yu Kuo, Yin-To Liao, Tzu-Chin Lin, Yena Lee, Roger S McIntyre, Brent A Kelsen, Tsu-Nai Wang, Vincent Chin-Hung Chen
BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) youths have increased suicide risk. Nevertheless, the beneficial effects of methylphenidate (MPH) on suicide attempt have received relatively little attention. AIMS: To investigate the MPH usage and the risk of suicide attempt among ADHD youths. METHODS: We identified 84,898 youths less than 18 years old with ADHD diagnosis between 1997 and 2013 from National Health Insurance, and examined whether MPH use affected suicide attempt risk using Cox proportional-hazards models...
November 6, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/29121214/missing-data-and-technical-variability-in-single-cell-rna-sequencing-experiments
#20
Stephanie C Hicks, F William Townes, Mingxiang Teng, Rafael A Irizarry
Until recently, high-throughput gene expression technology, such as RNA-Sequencing (RNA-seq) required hundreds of thousands of cells to produce reliable measurements. Recent technical advances permit genome-wide gene expression measurement at the single-cell level. Single-cell RNA-Seq (scRNA-seq) is the most widely used and numerous publications are based on data produced with this technology. However, RNA-seq and scRNA-seq data are markedly different. In particular, unlike RNA-seq, the majority of reported expression levels in scRNA-seq are zeros, which could be either biologically-driven, genes not expressing RNA at the time of measurement, or technically-driven, genes expressing RNA, but not at a sufficient level to be detected by sequencing technology...
November 6, 2017: Biostatistics
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