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https://www.readbyqxmd.com/read/29782325/early-emotional-attention-is-impacted-in-alzheimer-s-disease-an-eye-tracking-study
#1
Jessica Bourgin, Nathalie Guyader, Alan Chauvin, Alexandra Juphard, Mathilde Sauvée, Olivier Moreaud, Laetitia Silvert, Pascal Hot
Emotional deficits have been repetitively reported in Alzheimer's disease (AD) without clearly identifying how emotional processing is impaired in this pathology. This paper describes an investigation of early emotional processing, as measured by the effects of emotional visual stimuli on a saccadic task involving both pro (PS) and anti (AS) saccades. Sixteen patients with AD and 25 age-matched healthy controls were eye-tracked while they had to quickly move their gaze toward a positive, negative, or neutral image presented on a computer screen (in the PS condition) or away from the image (in the AS condition)...
May 16, 2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29781051/prehospital-prediction-of-large-vessel-occlusion-in-suspected-stroke-patients
#2
REVIEW
Kevin J Keenan, Charles Kircher, Jason T McMullan
PURPOSE OF REVIEW: Recent advances in endovascular thrombectomy have made acute ischemic stroke due to a large vessel occlusion more treatable than ever. Rapid access to treatment remains paramount and multiple large vessel occlusion prediction scales have been created to enhance prehospital identification and triage of these patients. This review summarizes the current state of large vessel occlusion prediction scales, proposes a set of ideal scale features, and discusses the future of these scales and prehospital neurological emergency response systems...
May 21, 2018: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/29780926/macular-edema-associated-with-intraocular-ointment-after-cataract-surgery
#3
Asaka Kudo, Takashi Kudo, Daisuke Takahashi, Tomomi Metoki, Yukihiko Suzuki, Mitsuru Nakazawa
Purpose: To report a case with macular edema associated with uveitis, a decreased corneal endothelial cell density, and vitreous opacity caused by migrated intraocular antibiotic ointment after uneventful cataract surgery. Observations: A 63-year-old man underwent uneventful sutureless superior clear corneal phacoemulsification and implantation of an intraocular lens in his right eye. Eleven months later, he complained of blurred vision when he gazed downward. Three months later, uveitis, vitreous opacity, and retinal hemorrhage were noted...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29780925/ocular-involvement-in-neurolymphomatosis
#4
Katy C Liu, Meridith A Hennessey, Chad M McCall, Alan D Proia
Purpose: To describe the ophthalmic symptoms and histopathological findings in a case of primary neurolymphomatosis (NL). Observations: A man in his 60s with a prior diagnosis of chronic inflammatory demyelinating polyneuropathy developed facial numbness, diplopia, drooling, and difficulty swallowing. Over a 3-month period, he developed total ptosis and ophthalmoplegia of the right eye with a dilated, non-reactive pupil considered secondary to cranial nerve III and VI palsies...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29774787/variability-of-attention-bias-in-socially-anxious-adolescents-differences-in-fixation-duration-toward-adult-and-adolescent-face-stimuli
#5
Andrea Trubanova Wieckowski, Nicole N Capriola-Hall, Rebecca Elias, Thomas H Ollendick, Susan W White
Prior research on attention bias in anxious youth, often utilising a visual dot probe task, has yielded inconsistent findings, which may be due to how bias is assessed and/or variability in the phenomenon. The present study utilises eye gaze tracking to assess attention bias in socially anxious adolescents, and explores several methodological and within-subject factors that may contribute to variability in attention bias. Attention bias to threat was measured in forty-two treatment-seeking adolescents (age 12-16 years) diagnosed with Social Anxiety Disorder...
May 18, 2018: Cognition & Emotion
https://www.readbyqxmd.com/read/29774172/moebius-syndrome-with-hypoglossal-palsy-syndactyly-brachydactyly-and-anisometropic-amblyopia
#6
Muhammad Hassaan Ali, Samreen Jamal, Muhammad Ather Rashid, Usman Javaid, Nadeem Hafeez Butt
Moebius syndrome is a rare cause of congenital facial and abducens palsy.  It is sometimes associated with musculoskeletal abnormalities and other cranial nerve palsies. Genetics and ischemic insults to the fetus are considered to be the cause of this syndrome. We report here a 12-year-old female patient who was presented to us with poor cosmesis of her face, with associated decreased vision and lagophthalmos in her left eye. She didn't have any signs of exposure keratopathy in the affected eye. Her best-corrected vision was 20/20 and 20/60 in right and left eyes respectively...
March 16, 2018: Curēus
https://www.readbyqxmd.com/read/29773841/ocular-counter-rolling-in-astronauts-after-short-and-long-duration-spaceflight
#7
Millard F Reschke, Scott J Wood, Gilles Clément
Ocular counter-rolling (OCR) is a reflex generated by the activation of the gravity sensors in the inner ear that stabilizes gaze and posture during head tilt. We compared the OCR measures that were obtained in 6 astronauts before, during, and after a spaceflight lasting 4-6 days with the OCR measures obtained from 6 astronauts before and after a spaceflight lasting 4-9 months. OCR in the short-duration fliers was measured using the afterimage method during head tilt at 15°, 30°, and 45°. OCR in the long-duration fliers was measured using video-oculography during whole body tilt at 25°...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29772378/a-task-invariant-cognitive-reserve-network
#8
Yaakov Stern, Yunglin Gazes, Qolomreza Razlighi, Jason Steffener, Christian Habeck
The concept of cognitive reserve (CR) can explain individual differences in susceptibility to cognitive or functional impairment in the presence of age or disease-related brain changes. Epidemiologic evidence indicates that CR helps maintain performance in the face of pathology across multiple cognitive domains. We therefore tried to identify a single, "task-invariant" CR network that is active during the performance of many disparate tasks. In imaging data acquired from 255 individuals age 20-80 while performing 12 different cognitive tasks, we used an iterative approach to derive a multivariate network that was expressed during the performance of all tasks, and whose degree of expression correlated with IQ, a proxy for CR...
May 14, 2018: NeuroImage
https://www.readbyqxmd.com/read/29770186/conflict-tasks-of-different-types-divergently-affect-the-attentional-processing-of-gaze-and-arrow
#9
Lingxia Fan, Huan Yu, Xuemin Zhang, Qing Feng, Mengdan Sun, Mengsi Xu
The present study explored the attentional processing mechanisms of gaze and arrow cues in two different types of conflict tasks. In Experiment 1, participants performed a flanker task in which gaze and arrow cues were presented as central targets or bilateral distractors. The congruency between the direction of the target and the distractors was manipulated. Results showed that arrow distractors greatly interfered with the attentional processing of gaze, while the processing of arrow direction was immune to conflict from gaze distractors...
May 2018: I-Perception
https://www.readbyqxmd.com/read/29768990/control-of-a-7-dof-robotic-arm-system-with-an-ssvep-based-bci
#10
Xiaogang Chen, Bing Zhao, Yijun Wang, Shengpu Xu, Xiaorong Gao
Although robot technology has been successfully used to empower people who suffer from motor disabilities to increase their interaction with their physical environment, it remains a challenge for individuals with severe motor impairment, who do not have the motor control ability to move robots or prosthetic devices by manual control. In this study, to mitigate this issue, a noninvasive brain-computer interface (BCI)-based robotic arm control system using gaze based steady-state visual evoked potential (SSVEP) was designed and implemented using a portable wireless electroencephalogram (EEG) system...
April 12, 2018: International Journal of Neural Systems
https://www.readbyqxmd.com/read/29768468/early-development-of-attention-to-threat-related-facial-expressions
#11
Jukka M Leppänen, Julia K Cataldo, Michelle Bosquet Enlow, Charles A Nelson
Infants from an early age have a bias to attend more to faces than non-faces and after 5 months are particularly attentive to fearful faces. We examined the specificity of this "fear bias" in 5-, 7-, and 12-month-old infants (N = 269) and 36-month-old children (N = 191) and whether its development is associated with features of the early rearing environment, specifically maternal anxiety and depression symptoms. Attention dwell times were assessed by measuring the latencies of gaze shifts from a stimulus at fixation to a new stimulus in the visual periphery...
2018: PloS One
https://www.readbyqxmd.com/read/29766769/movement-vigor-as-a-trait-like-attribute-of-individuality
#12
Thomas Reed Reppert, Ioannis Rigas, David Herzfeld, Ehsan Sedaghat-Nejad, Oleg Komogortsev, Reza Shadmehr
A common aspect of individuality is our subjective preferences in evaluation of reward and effort. The neural circuits that evaluate these commodities influence circuits that control our movements, raising the possibility that vigor differences between individuals may also be a trait of individuality, reflecting a willingness to expend effort. In contrast, classic theories in motor-control suggest that vigor differences reflect a speed-accuracy trade-off, predicting that those who move fast are sacrificing accuracy for speed...
May 16, 2018: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29766612/visuomotor-coordination-and-cortical-connectivity-of-modular-motor-learning
#13
Pablo I Burgos, Juan J Mariman, Scott Makeig, Gonzalo Rivera-Lillo, Pedro E Maldonado
The ability to transfer sensorimotor skill components to new actions and the capacity to use skill components from whole actions are characteristic of the adaptability of the human sensorimotor system. However, behavioral evidence suggests complex limitations for transfer after combined or modular learning of motor adaptations. Also, to date, only behavioral analysis of the consequences of the modular learning has been reported, with little understanding of the sensorimotor mechanisms of control and the interaction between cortical areas...
May 15, 2018: Human Brain Mapping
https://www.readbyqxmd.com/read/29764531/syllables-and-inflectional-morphemes-in-early-finnish-readers-evidence-from-eye-movements
#14
Tuomo Häikiö, Seppo Vainio
Finnish is a language with simple syllable structure but rich morphology. It was investigated whether syllables or morphemes are preferred processing units in early reading. To this end, Finnish first- and second-grade children read sentences with embedded inflected target words while their eye-movements were registered. The target words were either in essive or inessive/adessive (i.e., locative) case. The target words were either non-hyphenated, or had syllable-congruent or syllable-incongruent hyphenation...
May 16, 2018: Journal of Child Language
https://www.readbyqxmd.com/read/29763697/the-effect-of-load-on-spatial-attention-depends-on-preview-evidence-from-a-readingstudy
#15
Saeideh Ghahghaei, Karina J Linnell
The spatio-temporal distribution of covert attention has usually been studied under unfamiliar tasks with static viewing. It is important to extend this work to familiar tasks such as reading where sequential eye movements are made. Our previous work with reading showed that covert spatial attention around the gaze location is affected by the fixated word frequency, or the processing load exerted by the word, as early as 40 ms into the fixation. Here, we hypothesised that this early effect of frequency is only possible when the word is previewed and thus pre-processed before being fixated...
May 12, 2018: Vision Research
https://www.readbyqxmd.com/read/29761961/-study-on-method-of-laparoscopic-training-based-on-eye-gaze-tracking-techniques
#16
Mingzhe Xu, Shuyi Wang, Shasha Ye
In current domestic research on laparoscopic training, researchers usually consider instrument movement path in the hand-eye coordination relationship. However, they ignore the information contained in visual cues by which could guide and control instrument movements. Studies in other areas have shown that trainers can improve their perceptual-motor skills by gaze training. This paper was designed to examine the effectiveness of eye gaze tracking technology in laparoscopic training and to analyze gaze strategy of the subjects in different training methods...
October 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29760370/using-eye-tracking-technology-to-compare-the-effectiveness-of-malignant-hyperthermia-cognitive-aid-design
#17
Roderick King, Jaber Hanhan, T Kyle Harrison, Alex Kou, Steven K Howard, Lindsay K Borg, Cynthia Shum, Ankeet D Udani, Edward R Mariano
Background: Malignant hyperthermia is a rare but potentially fatal complication of anesthesia, and several different cognitive aids designed to facilitate a timely and accurate response to this crisis currently exist. Eye tracking technology can measure voluntary and involuntary eye movements, gaze fixation within an area of interest, and speed of visual response and has been used to a limited extent in anesthesiology. Methods: With eye tracking technology, we compared the accessibility of five malignant hyperthermia cognitive aids by collecting gaze data from twelve volunteer participants...
May 15, 2018: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/29760003/teaching-video-neuroimages-palsy-of-conjugate-horizontal-gaze-and-face-due-to-isolated-abducens-nuclear-infarction
#18
(no author information available yet)
No abstract text is available yet for this article.
May 15, 2018: Neurology
https://www.readbyqxmd.com/read/29760002/author-response-teaching-video-neuroimages-palsy-of-conjugate-horizontal-gaze-and-face-due-to-isolated-abducens-nuclear-infarction
#19
https://www.readbyqxmd.com/read/29760001/reader-response-teaching-video-neuroimages-palsy-of-conjugate-horizontal-gaze-and-face-due-to-isolated-abducens-nuclear-infarction
#20
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