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https://www.readbyqxmd.com/read/27899713/when-do-individuals-with-autism-spectrum-disorder-show-superiority-in-visual-search
#1
Aya Shirama, Nobumasa Kato, Makio Kashino
Although superior visual search skills have been repeatedly reported for individuals with autism spectrum disorder, the underlying mechanisms remain controversial. To specify the locus where individuals with autism spectrum disorder excel in visual search, we compared the performance of autism spectrum disorder adults and healthy controls in briefly presented search tasks, where the search display was replaced by a noise mask at a stimulus-mask asynchrony of 160 ms to interfere with a serial search process while bottom-up visual processing remains intact...
November 29, 2016: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/27896708/asymmetric-interference-in-concurrent-time-to-contact-estimation-cousin-or-twin-of-the-psychological-refractory-period-effect
#2
Robin Baurès, Patricia R DeLucia, Megan Olson, Daniel Oberfeld
In a reaction time (RT) task requiring fast responses to two stimuli presented close in time, human observers show a delayed RT to the second stimulus. This phenomenon has been attributed to a psychological refractory period (PRP). A similar asymmetric interference is found when performing multiple concurrent visual time-to-contact (TTC) estimations for moving objects, despite important differences between the tasks. In the present study, we studied the properties of the asymmetric interference found in the TTC task and compared them to the classical PRP effect...
November 28, 2016: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/27895820/sleep-circadian-dysrhythmia-obesity-and-diabetes
#3
REVIEW
Gumpeny Ramachandra Sridhar, Narasimhadevara Santhi Nirmala Sanjana
Synchrony of biological processes with environmental cues developed over millennia to match growth, reproduction and senescence. This entails a complex interplay of genetic, metabolic, chemical, light, hormonal and hedonistic factors across life forms. Sleep is one of the most prominent rhythms where such a match is established. Over the past 100 years or so, it has been possible to disturb the synchrony between sleep-wake cycle and environmental cues. Development of electric lights, shift work and continual accessibility of the internet has disrupted this match...
November 15, 2016: World Journal of Diabetes
https://www.readbyqxmd.com/read/27892941/hatching-asynchrony-vs-foraging-efficiency-the-response-to-food-availability-in-specialist-vs-generalist-tit-species
#4
R Barrientos, J Bueno-Enciso, J J Sanz
Breeding mistiming is increasingly frequent in several ecosystems in the face of current climate change. Species belonging to higher trophic levels must employ mechanisms to reduce it. One of these mechanisms is hatching asynchrony, with the eggs in a clutch hatching over a period of several days. Some authors have suggested it to be adaptive when food is unpredictable. However, these birds can also suffer associated costs. We tested whether a species with higher foraging efficiency avoid hatching asynchrony compared to its sister species...
November 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27879380/performance-of-leak-compensation-in-all-age-icu-ventilators-during-volume-targeted-neonatal-ventilation-a-lung-model-study
#5
Taiga Itagaki, Desmond J Bennett, Christopher T Chenelle, Daniel F Fisher, Robert M Kacmarek
BACKGROUND: Volume-targeted ventilation is increasingly used in low birthweight infants because of the potential for reducing volutrauma and avoiding hypocapnea. However, it is not known what level of air leak is acceptable during neonatal volume-targeted ventilation when leak compensation is activated concurrently. METHODS: Four ICU ventilators (Servo-i, PB980, V500, and Avea) were compared in available invasive volume-targeted ventilation modes (pressure control continuous spontaneous ventilation [PC-CSV] and pressure control continuous mandatory ventilation [PC-CMV])...
November 22, 2016: Respiratory Care
https://www.readbyqxmd.com/read/27873186/is-nevtral-neutral-visual-similarity-effects-in-the-early-phases-of-written-word-recognition
#6
Ana Marcet, Manuel Perea
For simplicity, contemporary models of written-word recognition and reading have unspecified feature/letter levels-they predict that the visually similar substituted-letter nonword PEQPLE is as effective at activating the word PEOPLE as the visually dissimilar substituted-letter nonword PEYPLE. Previous empirical evidence on the effects of visual similarly across letters during written-word recognition is scarce and nonconclusive. To examine whether visual similarity across letters plays a role early in word processing, we conducted two masked priming lexical decision experiments (stimulus-onset asynchrony = 50 ms)...
November 21, 2016: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/27872958/multisensory-integration-is-independent-of-perceived-simultaneity
#7
Vanessa Harrar, Laurence R Harris, Charles Spence
The importance of multisensory integration for perception and action has long been recognised. Integrating information from individual senses increases the chance of survival by reducing the variability in the incoming signals, thus allowing us to respond more rapidly. Reaction times (RTs) are fastest when the components of the multisensory signals are simultaneous. This response facilitation is traditionally attributed to multisensory integration. However, it is unclear if facilitation of RTs occurs when stimuli are perceived as synchronous or are actually physically synchronous...
November 21, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/27866528/-effect-of-non-invasive-nava-on-the-patients-with-acute-exacerbation-of-chronic-obstructive-pulmonary-disease
#8
D Q Wang, J Luo, X H Xiong, L H Zhu, W W Zhang
Objective: To observe the effect of non-invasive neurally adjusted ventilatory assist (NIV-NAVA) on patient-ventilator synchrony and effect of gas exchange in patients with acute exacerbation of chronic obstructive pulmonary disease compared with NIV-pressure support ventilation (PSV). Methods: This was a prospective study of 40 patients with AECOPD given 30-min trials of NIV with NIV-PSV group (n=20) and NAVA group (n=20) in random order. Arterial blood gas analysis (ABGs), main asynchrony events and asynchrony index were quantified...
November 15, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27864096/effects-of-initial-telomere-length-distribution-on-senescence-onset-and-heterogeneity
#9
Sarah Eugène, Thibault Bourgeron, Zhou Xu
Replicative senescence, induced by telomere shortening, exhibits considerable asynchrony and heterogeneity, the origins of which remain unclear. Here, we formally study how telomere shortening mechanisms impact on senescence kinetics and define two regimes of senescence, depending on the initial telomere length variance. We provide analytical solutions to the model, highlighting a non-linear relationship between senescence onset and initial telomere length distribution. This study reveals the complexity of the collective behavior of telomeres as they shorten, leading to senescence heterogeneity...
November 15, 2016: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/27859315/dissociating-retrieval-interference-and-reanalysis-in-the-p600-during-sentence-comprehension
#10
Darren Tanner, Sarah Grey, Janet G van Hell
We investigated the relative independence of two key processes in language comprehension, as reflected in the P600 ERP component. Numerous studies have linked the P600 to sentence- or message-level reanalysis; however, much research has shown that skilled, cue-based memory retrieval operations are also important to successful language processing. Our goal was to identify whether these cue-based retrieval operations are part of the reanalysis processes indexed by the P600. To this end, participants read sentences that were either grammatical or ungrammatical via subject-verb agreement violations, and in which there was either no possibility for retrieval interference or there was an attractor noun interfering with the computation of subject-verb agreement (e...
November 12, 2016: Psychophysiology
https://www.readbyqxmd.com/read/27854117/treatment-of-neonates-with-respiratory-distress-syndrome-by-proportional-assist-ventilation-plus-synchronized-intermittent-mandatory-ventilation-a-comparison-study
#11
Rong Wu, Zhao F Tian, Xiang Y Kong, Shao D Hua, Jin H Hu, Guo F Zhen
BACKGROUND: The proportion assisted ventilation (PAV) can improve patient-ventilator interaction, reduce the incidence of end-expiratory asynchrony and increase the time of synchrony. PAV could compensate for the leaks by Elastic and resistive unloading and thus is ideal for neonates with uncuffed airways. The aim of this study was to compare the relevant clinical parameters of neonates with respiratory distress syndrome(RDS) who are surported by PAV plus synchronized intermittent mandatory ventilation (SIMV) and SIMV...
November 17, 2016: Minerva Pediatrica
https://www.readbyqxmd.com/read/27846305/time-to-decide-dynamical-analysis-predicts-partial-tip-stalk-patterning-states-arise-during-angiogenesis
#12
Lakshmi Venkatraman, Erzsébet Ravasz Regan, Katie Bentley
Angiogenesis is a highly dynamic morphogenesis process; however, surprisingly little is known about the timing of the different molecular processes involved. Although the role of the VEGF-notch-DLL4 signaling pathway has been established as essential for tip/stalk cell competition during sprouting, the speed and dynamic properties of the underlying process at the individual cell level has not been fully elucidated. In this study, using mathematical modeling we investigate how specific, biologically meaningful, local conditions around and within an individual cell can influence their unique tip/stalk phenotype switching kinetics...
2016: PloS One
https://www.readbyqxmd.com/read/27824611/uncoupling-of-cardiac-and-respiratory-rhythm-in-atrial-fibrillation
#13
Mirjana M Platiša, Tijana Bojić, Siniša U Pavlović, Nikola N Radovanović, Aleksandar Kalauzi
Rearranged origin of heart rhythm in patients with atrial fibrillation (AF) influences the regulation of the heart and consequently the respiratory rhythm, and the bidirectional interaction of these rhythms not documented. Hence, we examined coupling of the RR interval and the respiration (Resp) signal by coherence, Granger causality and the cross-sample entropy method of time series analysis in patients with AF and a healthy control group. In healthy subjects, the influence of respiration on cardiac rhythm was found as increased coherence at the breathing frequency (BF) range, significantly stronger interaction and synchrony from Resp to RR than from RR to Resp...
December 1, 2016: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/27822757/involvement-of-dihydropyridine-sensitive-calcium-channels-in-high-asynchrony-of-transmitter-release-in-neuromuscular-synapses-of-newborn-rats
#14
V F Khuzakhmetova, L F Nurullin, E A Bukharaeva, E E Nikolsky
Experiments on neuromuscular synapses of rats at different stages of ontogenesis have been performed. It has been found that one of the reasons of higher asynchrony of the release of single quanta of acetylcholine in the synapses of newborn animals is the activity of the presynaptic dihydropyridine-sensitive calcium channels of the L-type.
September 2016: Doklady Biological Sciences: Proceedings of the Academy of Sciences of the USSR, Biological Sciences Sections
https://www.readbyqxmd.com/read/27819442/was-that-a-threat-attentional-biases-by-signals-of-threat
#15
Daniel Preciado, Jaap Munneke, Jan Theeuwes
The present study rigorously tests whether an arbitrary stimulus that signals threat affects attentional selection and perception. Thirty-four volunteers completed a spatial-emotional cueing paradigm to examine how perceptual sensitivity (d') and response times (RTs) were affected by a threatening stimulus. On each side of fixation, 2 colored circles were presented as cues, followed by 2 Gabor patches, 1 of which was tilted and served as target. The color of 1 of the cues was paired with an electric shock, while others remained neutral...
November 7, 2016: Emotion
https://www.readbyqxmd.com/read/27811072/adenotonsillectomy-for-childhood-obstructive-sleep-apnoea-reduces-thoraco-abdominal-asynchrony-but-spontaneous-apnoea-hypopnoea-index-normalisation-does-not
#16
Xiao Liu, Sarah Immanuel, Yvonne Pamula, Declan Kennedy, James Martin, Mathias Baumert
The efficacy of adenotonsillectomy for treating obstructive sleep apnoea syndrome (OSAS) in children has been established, but its precise effects on inspiratory effort are not well documented.In 353 children enrolled in the Childhood Adenotonsillectomy Trial, randomised to undergo either early adenotonsillectomy (n=182) or a strategy of watchful waiting with supportive care (WWSC) (n=171), thoraco-abdominal asynchrony (TAA) was analysed during quiet, non-apnoeic and non-hypopnoeic breathing during sleep at baseline and at 7 months using overnight polysomnography...
November 3, 2016: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/27803660/spectral-entropy-based-neuronal-network-synchronization-analysis-based-on-microelectrode-array-measurements
#17
Fikret E Kapucu, Inkeri Välkki, Jarno E Mikkonen, Chiara Leone, Kerstin Lenk, Jarno M A Tanskanen, Jari A K Hyttinen
Synchrony and asynchrony are essential aspects of the functioning of interconnected neuronal cells and networks. New information on neuronal synchronization can be expected to aid in understanding these systems. Synchronization provides insight in the functional connectivity and the spatial distribution of the information processing in the networks. Synchronization is generally studied with time domain analysis of neuronal events, or using direct frequency spectrum analysis, e.g., in specific frequency bands...
2016: Frontiers in Computational Neuroscience
https://www.readbyqxmd.com/read/27802956/education-on-patient-ventilator-synchrony-clinicians-knowledge-level-and-duration-of-mechanical-ventilation
#18
Donna Lynch-Smith, Carol Lynn Thompson, Rexann G Pickering, Jim Y Wan
BACKGROUND: Improved recognition of patient-ventilator asynchrony may reduce duration of mechanical ventilation. OBJECTIVE: To evaluate the effects of education about patient-ventilator synchrony on clinicians' level of knowledge and patients' mean duration of mechanical ventilation. METHODS: A quasi-experimental 1-group pretest-posttest study was performed in a 16-bed intensive care unit. Analysis included 33 clinicians and 97 ventilator patients...
November 2016: American Journal of Critical Care: An Official Publication, American Association of Critical-Care Nurses
https://www.readbyqxmd.com/read/27797612/patient-ventilator-asynchrony-due-to-reverse-triggering-occurring-in-brain-dead-patients-clinical-implications-and-physiological-meaning
#19
Stéphane Delisle, Emmanuel Charbonney, Martin Albert, Paul Ouellet, Pierre Marsolais, Marceau Rigollot, Dominique Savary, Jean-Christophe M Richard, Karim Serri
No abstract text is available yet for this article.
November 1, 2016: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/27791394/differential-influence-of-asynchrony-in-early-and-late-chronotypes-on-convergent-thinking
#20
Péter Simor, Bertalan Polner
Eveningness preference (late chronotype) was previously associated with different personality dimensions and thinking styles that were linked to creativity, suggesting that evening-type individuals tend to be more creative than the morning-types. Nevertheless, empirical data on the association between chronotype and creative performance is scarce and inconclusive. Moreover, cognitive processes related to creative thinking are influenced by other factors such as sleep and the time of testing. Therefore, our aim was to examine convergent and divergent thinking abilities in late and early chronotypes, taking into consideration the influence of asynchrony (optimal versus nonoptimal testing times) and sleep quality...
October 28, 2016: Chronobiology International
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