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https://www.readbyqxmd.com/read/28214766/direct-and-generative-retrieval-of-autobiographical-memories-the-roles-of-visual-imagery-and-executive-processes
#1
Rachel J Anderson, Stephen A Dewhurst, Graham M Dean
Two experiments used a dual task methodology to investigate the role of visual imagery and executive resources in the retrieval of specific autobiographical memories. In Experiment 1, dynamic visual noise led to a reduction in the number of specific memories retrieved in response to both high and low imageability cues, but did not affect retrieval times. In Experiment 2, irrelevant pictures reduced the number of specific memories but only in response to low imageability cues. Irrelevant pictures also increased response times to both high and low imageability cues...
February 16, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28212877/defining-outcomes-for-clinical-trials-of-leber-congenital-amaurosis-caused-by-gucy2d-mutations
#2
Samuel G Jacobson, Artur V Cideciyan, Alexander Sumaroka, Alejandro J Roman, Jason Charng, Monica Lu, Shreyasi Choudhury, Sharon B Schwartz, Elise Heon, Gerald A Fishman, Shannon E Boye
PURPOSE: To determine outcome measures for a clinical trial of Leber congenital amaurosis (LCA) associated with mutations in the GUCY2D gene. DESIGN: Retrospective observational case series. METHODS: 28 patients with GUCY2D-LCA (ages 2-59) were studied clinically and with chromatic full-field sensitivity testing (FST), optical coherence tomography (OCT), pupillometry, and the NEI Visual Function Questionnaire. RESULTS: FST permitted quantitation of cone and rod sensitivity in these patients with severe visual impairment...
February 14, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28212348/an-electromagnetic-sensor-for-the-autonomous-running-of-visually-impaired-and-blind-athletes-part-ii-the-wearable-device
#3
Marco Pieralisi, Valentina Di Mattia, Valerio Petrini, Alfredo De Leo, Giovanni Manfredi, Paola Russo, Lorenzo Scalise, Graziano Cerri
Currently, the availability of technology developed to increase the autonomy of visually impaired athletes during sports is limited. The research proposed in this paper (Part I and Part II) focuses on the realization of an electromagnetic system that can guide a blind runner along a race track without the need for a sighted guide. In general, the system is composed of a transmitting unit (widely described in Part I) and a receiving unit, whose components and main features are described in this paper. Special attention is paid to the definition of an electromagnetic model able to faithfully represent the physical mechanisms of interaction between the two units, as well as between the receiving magnetic sensor and the body of the user wearing the device...
February 16, 2017: Sensors
https://www.readbyqxmd.com/read/28212161/hearing-impairment-and-the-amelioration-of-avoidable-medical-error-a-cross-sectional-survey
#4
Patrick Henn, Colm OʼTuathaigh, Darrelle Keegan, Simon Smith
OBJECTIVES: Hearing loss contributes to suboptimal medical treatment. We investigated the nature and magnitude of potential health-care harm of hearing loss alone on a patient's understanding of medical consultations, investigations, and treatments of health conditions unrelated to their hearing loss. METHODS: A cross-sectional, questionnaire-based design of a convenience sample of students with hearing loss, registered with the institutional disability support service in 8 Irish and 15 UK third-level institutions...
February 16, 2017: Journal of Patient Safety
https://www.readbyqxmd.com/read/28211449/translational-use-of-event-related-potentials-to-assess-circuit-integrity-in-asd
#5
REVIEW
Meera E Modi, Mustafa Sahin
Deficits in social cognition are the defining characteristic of autism spectrum disorder (ASD). Social cognition requires the integration of several neural circuits in a time-sensitive fashion, so impairments in social interactions could arise as a result of alterations in network connectivity. Electroencephalography (EEG) has revealed abnormalities in event related potentials (ERPs) evoked by auditory and visual sensory stimuli in humans with ASD, indicating disruption of neural connectivity. Similar abnormalities in sensory-evoked ERPs have been observed in animal models of ASD, suggesting that ERPs have the potential to provide a translational biomarker of the disorder...
February 17, 2017: Nature Reviews. Neurology
https://www.readbyqxmd.com/read/28211177/visual-impairment-in-older-institutionalised-canadian-seniors-with-dementia
#6
Estefania Chriqui, Caroline Law, Marie-Jeanne Kergoat, Bernard-Simon Leclerc, Hélène Kergoat
PURPOSE: To estimate the prevalence of visual impairment (VI) in a sub-population of Canadian long-term care facilities, i.e. residents affected by dementia. METHODS: This study was conducted in the long-term care facility units at the Institut universitaire de gériatrie de Montréal. All residents ≥65 years old (y.o.), having a clinical diagnosis of dementia, and able to understand French or English, were eligible for participation in the study. All residents participating in the study received a complete eye exam by an experienced optometrist...
March 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/28211175/systematic-review-and-meta-analysis-of-the-association-of-autism-spectrum-disorder-in-visually-or-hearing-impaired-children
#7
Belinda Do, Paige Lynch, Elena-Marie Macris, Brianna Smyth, Stephanie Stavrinakis, Stephen Quinn, Paul A Constable
PURPOSE: To determine whether there is an association with a congenital visual or hearing impairment (VI or HI) and Autism Spectrum Disorder (ASD) in children. METHODS: A systematic literature review was performed using nine relevant databases limited to peer reviewed articles in English between 1994 and January 2016. The search identified 1248 articles after duplicates were removed with subsequent screening of the abstracts excluding a further 1199, resulting in 49 full-text articles that were then independently assessed by five of the authors with a final 15 articles meeting the inclusion criteria...
March 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/28210998/on-t%C3%AF-he-distinction-between-value-driven-attention-and-selection-history-evidence-from-individuals-with-depressive-symptoms
#8
Brian A Anderson, Michelle Chiu, Michelle M DiBartolo, Stephanie L Leal
When predictive of extrinsic reward as targets, stimuli rapidly acquire the ability to automatically capture attention. Attentional biases for former targets of visual search also can develop without reward feedback but typically require much longer training. These learned biases towards former targets often are conceptualized within a single framework and might differ merely in degree. That is, both are the result of the reinforcement of selection history, with extrinsic reward for correct report of the target providing greater reinforcement than correct report alone...
February 16, 2017: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/28210901/transplantation-of-lineage-negative-stem-cells-in-pterygopalatine-artery-ligation-induced-retinal-ischemia-reperfusion-injury-in-mice
#9
Gillipsie Minhas, Sudesh Prabhakar, Ryuichi Morishita, Munehisa Shimamura, Reema Bansal, Akshay Anand
Retinal ischemia is a condition associated with retinal degenerative diseases such as glaucoma, diabetic retinopathy, and other optic neuropathies, leading to visual impairment and blindness worldwide. Currently, there is no therapy available for ischemic retinopathies. Therefore, the aim of this study was to test a murine model of pterygopalatine artery ligation-induced retinal injury for transplantation of mouse bone marrow-derived lineage-negative (lin-ve) stem cells. The mouse external carotid artery and pterygopalatine artery were ligated for 3...
February 16, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28210832/benefits-of-an-android-based-tablet-application-in-primary-screening-for-eye-diseases-in-a-rural-population-india
#10
Sayed Ahmed Imtiaz, Sannapaneni Krishnaiah, Sunil Kumar Yadav, Balasubramaniam Bharath, Ramanathan V Ramani
To investigate the effectiveness, efficiency and cost gains in collecting patient eye health information from remote rural villages of India by trained field investigators through an Android Based Tablet Application namely 'Sankara Electronic Remote Vision Information System (SERVIS)". During January and March 2016, a population based cross-sectional study was conducted in three Indian states employing SERVIS and manual method. The SERVIS application has a 48-items survey instrument programed into the application...
April 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28209521/impaired-visual-competition-in-patients-with-homonymous-visual-field-defects
#11
A C Geuzebroek, A V van den Berg
Intense visual training can lead to partial recovery of visual field defects caused by lesions of the primary visual cortex. However, the standard visual detection and discrimination tasks, used to assess this recovery process tend to ignore the complexity of the natural visual environment, where multiple stimuli continuously interact. Visual competition is an essential component for natural search tasks and detecting unexpected events. Our study focused on visual decision-making and to what extent the recovered visual field can compete for attention with the 'intact' visual field...
February 13, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28208936/supra-hepatic-inferior-vena-cava-thrombosis-surgical-challenges
#12
Senthil Muthuraman, Anand Ramamurthy, Mahesh Gopashetty, Cuddalore Sadasivam Vijayshankar, Anand Khakhar
Autosomal Dominant Polycystic Kidney Disease (ADPKD) is a chronic affliction characterized by numerous liver and kidney cysts. There is a gradual but progressive renal and liver impairment which may require combined liver-kidney transplantation. Compression of the retrohepatic Inferior Vena Cava (IVC) by an enlarged polycystic liver may impede clear visualization on pre-operative imaging and miss an underlying thrombosis or obliteration. This may result in an intra-operative surprise. Management can be challenging requiring modification of conventional surgical approach...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208898/to-study-the-efficacy-of-difluprednate-ophthalmic-emulsion-and-prednisolone-acetate-ophthalmic-suspension-on-post-operative-inflammation-in-cataract-surgery
#13
Punita Garg, Nupur Tuteja, Shazia Qayum
INTRODUCTION: Senile cataract is the most common cause of visual impairment. Removal of cataract and implantation of intraocular lens implantation (IOL) is the main surgical approach for cataract. The major block in quick visual rehabilitation of the patient is post-operative inflammation. To limit post-operative inflammation corticosteroids drugs are used in routine prophylactically. Topical prednisolone acetate 1% and betamethasone 0.1% remain gold standard to control post-operative inflammation but newer drugs like difluprednate, loteprednol are also effective in controlling inflammation...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208897/a-validation-of-an-examination-protocol-for-cerebral-visual-impairment-among-children-in-a-clinical-population-in-india
#14
Swetha Sara Philip, Sherab Tsherlinga, Maya Mary Thomas, Gordon N Dutton, Richard Bowman
INTRODUCTION: Cerebral Visual Impairment (CVI) is a leading cause of vision impairment in developed and developing countries due to and increased survival of preterm and low birth weight infants. There are few data concerning the validity of protocols available to diagnose CVI. AIM: This study aimed to document the face, content and construct validity of an assessment protocol namely, a 15-domain, Structured Clinical Question Inventory (SCQI), which is based on structured history taking and clinical examination, for the diagnosis of CVI in a clinical population of India...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208170/optical-coherence-tomographic-angiography-in-type-2-diabetes-and-diabetic-retinopathy
#15
Daniel Shu Wei Ting, Gavin Siew Wei Tan, Rupesh Agrawal, Yasuo Yanagi, Nicole Ming Sie, Chee Wai Wong, Ian Yew San Yeo, Shu Yen Lee, Chui Ming Gemmy Cheung, Tien Yin Wong
Importance: Optical coherence tomographic angiography (OCT-A) is able to visualize retinal microvasculature without the need for injection of fluorescein contrast dye. Nevertheless, it is only able to capture a limited view of macula and does not show leakage. Objectives: To evaluate the retinal microvasculature using OCT-A in patients with type 2 diabetes as well as the association of OCT-A characteristics with diabetic retinopathy (DR) and systemic risk factors...
February 16, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28208099/the-impact-of-walking-while-using-a-smartphone-on-pedestrians-awareness-of-roadside-events
#16
Ming-I Brandon Lin, Yu-Ping Huang
Previous studies have shown that using a cell phone to talk or text while walking changes gait kinematics and encourages risky street-crossing behaviors. However, less is known about how the motor-cognitive interference imposed by smartphone tasks affects pedestrians' situational awareness to environmental targets relevant to pedestrian safety. This study systematically investigated the influence of smartphone use on detection of and responses to a variety of roadside events in a semi-virtual walking environment...
February 13, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28207912/fear-conditioning-and-extinction-in-pediatric-obsessive-compulsive-disorder
#17
Daniel A Geller, Joseph F McGuire, Scott P Orr, Daniel S Pine, Jennifer C Britton, Brent J Small, Tanya K Murphy, Sabine Wilhelm, Eric A Storch
BACKGROUND: Fear acquisition and extinction are central constructs in the cognitive-behavioral model of obsessive-compulsive disorder (OCD), which underlies exposure-based cognitive-behavioral therapy. Youths with OCD may have impairments in fear acquisition and extinction that carry treatment implications. METHODS: Eighty youths (39 OCD, 41 healthy controls [HC]) completed clinical interviews, rating scales, and a differential conditioning task that included habituation, acquisition, and extinction phases...
February 2017: Annals of Clinical Psychiatry: Official Journal of the American Academy of Clinical Psychiatrists
https://www.readbyqxmd.com/read/28207827/replication-of-snp-associations-with-keratoconus-in-a-czech-cohort
#18
Petra Liskova, Lubica Dudakova, Anna Krepelova, Jiri Klema, Pirro G Hysi
INTRODUCTION: Keratoconus is a relatively frequent disease leading to severe visual impairment. Existing therapies are imperfect and clinical management may benefit from improved understanding of mechanisms leading to this disease. We aim to investigate the replication of 11 single nucleotide polymorphisms (SNPs) with keratoconus. METHODS: SNPs from loci previously found in association with keratoconus were genotyped in 165 keratoconus cases of Caucasian Czech origin (108 males and 57 females) and 193 population and gender-matched controls...
2017: PloS One
https://www.readbyqxmd.com/read/28207765/a-rapid-efficient-and-economic-device-and-method-for-the-isolation-and-purification-of-mouse-islet-cells
#19
Yin Zongyi, Zou Funian, Li Hao, Cheng Ying, Zhang Jialin, Li Baifeng
Rapid, efficient, and economic method for the isolation and purification of islets has been pursued by numerous islet-related researchers. In this study, we compared the advantages and disadvantages of our developed patented method with those of commonly used conventional methods (Ficoll-400, 1077, and handpicking methods). Cell viability was assayed using Trypan blue, cell purity and yield were assayed using diphenylthiocarbazone, and islet function was assayed using acridine orange/ethidium bromide staining and enzyme-linked immunosorbent assay-glucose stimulation testing 4 days after cultivation...
2017: PloS One
https://www.readbyqxmd.com/read/28207341/visual-loss-and-subsequent-activity-limitations-in-the-elderly-the-french-three-city-cohort
#20
Karine Pérès, Fanny Matharan, Vincent Daien, Virginie Nael, Arlette Edjolo, Isabelle Bourdel-Marchasson, Karen Ritchie, Christophe Tzourio, Cécile Delcourt, Isabelle Carrière
OBJECTIVES: To investigate the relationship between vision and disability in the elderly. METHODS: We used a baseline visual indicator (combining near acuity with Snellen equivalent < 20/30 and self-reported distance visual loss) to explore the association between visual loss and subsequent disability (mobility, instrumental activities of daily living [IADLs], ADLs, and participation restriction) from 1999 to 2007 in 8491 elderly participants of the French Three-City Cohort (Bordeaux, Dijon, and Montpellier)...
February 16, 2017: American Journal of Public Health
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