keyword
MENU ▼
Read by QxMD icon Read
search

visual impaired

keyword
https://www.readbyqxmd.com/read/29793042/aminergic-neuromodulation-of-associative-visual-learning-in-harnessed-honey-bees
#1
Nino Mancini, Martin Giurfa, Jean-Christophe Sandoz, Aurore Avarguès-Weber
The honey bee Apis mellifera is a major insect model for studying visual cognition. Free-flying honey bees learn to associate different visual cues with a sucrose reward and may deploy sophisticated cognitive strategies to this end. Yet, the neural bases of these capacities cannot be studied in flying insects. Conversely, immobilized bees are accessible to neurobiological investigation but training them to respond appetitively to visual stimuli paired with sucrose reward is difficult. Here we succeeded in coupling visual conditioning in harnessed bees with pharmacological analyses on the role of octopamine (OA), dopamine (DA) and serotonin (5-HT) in visual learning...
May 21, 2018: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/29792890/the-visual-cortex-and-visual-cognition-in-huntington-s-disease-an-overview-of-current-literature
#2
REVIEW
Emma M Coppen, Jeroen van der Grond, Ellen P Hart, Egbert A J F Lakke, Raymund A C Roos
The processing of visual stimuli from retina to higher cortical areas has been extensively studied in the human brain. In Huntington's disease (HD), an inherited neurodegenerative disorder, it is suggested that visual processing deficits are present in addition to more characteristic signs such as motor disturbances, cognitive dysfunction, and behavioral changes. Visual deficits are clinically important because they influence overall cognitive performance and have implications for daily functioning. The aim of this review is to summarize current literature on clinical visual deficits, visual cognitive impairment, and underlying visual cortical changes in HD patients...
May 21, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29792444/automaticity-in-the-recognition-of-nonverbal-emotional-vocalizations
#3
César F Lima, Andrey Anikin, Ana Catarina Monteiro, Sophie K Scott, São Luís Castro
The ability to perceive the emotions of others is crucial for everyday social interactions. Important aspects of visual socioemotional processing, such as the recognition of facial expressions, are known to depend on largely automatic mechanisms. However, whether and how properties of automaticity extend to the auditory domain remains poorly understood. Here we ask if nonverbal auditory emotion recognition is a controlled deliberate or an automatic efficient process, using vocalizations such as laughter, crying, and screams...
May 24, 2018: Emotion
https://www.readbyqxmd.com/read/29792389/therapist-assisted-vision-therapy-improves-outcome-for-stroke-patients-with-homonymous-hemianopia-alone-or-combined-with-oculomotor-dysfunction
#4
Peter Smaakjær, Signe Tornøe Tødten, Rune Skovgaard Rasmussen
OBJECTIVE: To improve visual performance and perception in stroke patients suffering from visual impairments by the use of therapist-assisted vision therapy. METHODS: This study was an interventional efficacy open-label investigation. The vision therapy was designed to enhance binocular vision, and saccadic ability, and vergence ranges maximally, and for patients with hemianopia also to improve peripheral awareness. The vision training consisted of one lesson a week for 12 weeks carried out by an optometrist and a vision therapist...
May 24, 2018: Neurological Research
https://www.readbyqxmd.com/read/29792367/visual-and-visuomotor-processing-of-hands-and-tools-as-a-case-study-of-cross-talk-between-the-dorsal-and-ventral-streams
#5
Jorge Almeida, Lénia Amaral, Frank E Garcea, Diana Aguiar de Sousa, Shan Xu, Bradford Z Mahon, Isabel Pavão Martins
A major principle of organization of the visual system is between a dorsal stream that processes visuomotor information and a ventral stream that supports object recognition. Most research has focused on dissociating processing across these two streams. Here we focus on how the two streams interact. We tested neurologically-intact and impaired participants in an object categorization task over two classes of objects that depend on processing within both streams-hands and tools. We measured how unconscious processing of images from one of these categories (e...
May 24, 2018: Cognitive Neuropsychology
https://www.readbyqxmd.com/read/29790469/intraventricular-ganglioglioma-presenting-with-spontaneous-hemorrhage
#6
Alexandre Rainha Campos, Luisa Biscoito, Maria Gabriela Gasparinho
Intraventricular gangliogliomas presenting with spontaneous hemorrhage are rare. Due to high density of important tracts lateral to the ventricular atrium, the intraparietal trans sulcal approach is a good option to remove lesions in this location. These tracts are displaced and sometimes destroyed by the presence of large masses. A 33-year-old male presented with a sudden headache and a generalized seizure. He had a left visual field hemianopia and left visual field neglect. Brain computer tomography and magnetic resonance imaging revealed a hemorrhagic tumor located in his right atrium...
March 29, 2018: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/29790420/olfactory-training-in-posttraumatic-smell-impairment-mild-improvement-in-threshold-performances-results-from-a-randomized-controlled-trial
#7
Cristobal Langdon, Eduardo Lehrer, Sara Laxe, Isam Alobid, Llorenç Quinto, Joan Berenguer, Franklin Mariño, Montserrat Bernabeu, Concepcio Marin, Joaquim Mullol
Traumatic Brain Injury (TBI) can be associated with partial or total smell loss. Recent studies have suggested that olfactory outcome can be positively modulated after olfactory training (OT). This study's aim was to investigate OT's potential role in smell recovery after TBI-induced olfactory loss. A prospective, randomized, and controlled study was developed. Patients with TBI-induced olfactory dysfunction (N = 42) were randomized into an experimental group with OT and a control group without (nOT). OT was performed twice daily with a 6-odor training set during 12 weeks...
May 23, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29789951/sleep-in-children-with-congenital-malformations-of-the-central-nervous-system
#8
REVIEW
Jacqueline F Yates, Matthew M Troester, David G Ingram
PURPOSE OF REVIEW: Congenital malformations of the central nervous system may be seen in isolation or in association with syndromes that have multiorgan involvement. Among the potential health challenges these children may face, sleep concerns are frequent and may include chronic insomnia, sleep-related breathing disorders, and circadian rhythm disorders. RECENT FINDINGS: In this review, we describe recent research into sleep disorders affecting children with congenital malformations of the CNS including visual impairment, septo-optic dysplasia, agenesis of the corpus callosum, Aicardi syndrome, Chiari malformation, spina bifida, achondroplasia, Joubert syndrome, fetal alcohol spectrum disorders, and congenital Zika syndrome...
May 23, 2018: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/29789937/visual-and-auditory-steady-state-responses-in-attention-deficit-hyperactivity-disorder
#9
Ali Khaleghi, Hadi Zarafshan, Mohammad Reza Mohammadi
We designed a study to investigate the patterns of the steady-state visual evoked potential (SSVEP) and auditory steady-state response (ASSR) in adolescents with attention-deficit/hyperactivity disorder (ADHD) when performing a motor response inhibition task. Thirty 12- to 18-year-old adolescents with ADHD and 30 healthy control adolescents underwent an electroencephalogram (EEG) examination during steady-state stimuli when performing a stop-signal task. Then, we calculated the amplitude and phase of the steady-state responses in both visual and auditory modalities...
May 22, 2018: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/29789897/-pilot-study-to-investigate-sleep-disorders-in-the-blind-and-persons-with-relevant-visual-impairment
#10
C Dirks, D Grünewald, P Young, A Heidbreder
BACKGROUND: Sleep disorders are associated with serious health problems in blind and visually impaired persons. Loss of light perception may result in a shift of sleep-wake pattern, which may lead to significant impairments in daily life--the so-called non-24-hour sleep-wake disorder. To date, epidemiologic data on non-24 only exist for the USA. This pilot study was conducted to provide first epidemiologic data for the prevalence of non-24 and other sleep disorders among blind and visually impaired persons in Germany...
May 22, 2018: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/29789014/a-review-of-scoring-systems-for-ocular-involvement-in-chronic-cutaneous-bullous-diseases
#11
REVIEW
Brendon W H Lee, Jeremy C K Tan, Melissa Radjenovic, Minas T Coroneo, Dedee F Murrell
BACKGROUND: Epidermolysis bullosa (EB) and autoimmune blistering diseases (AIBD) describe a group of rare chronic dermatoses characterized by cutaneous fragility and blistering. Although uncommon, significant ocular surface disease (OSD) may occur in both and require ophthalmological assessment. Disease scoring systems have a critical role in providing objective and accurate assessment of disease severity. The objectives of this report were, firstly, to document the prevalence and severity of ocular involvement in EB/AIBD...
May 22, 2018: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/29787945/sex-specific-age-threshold-for-increased-risk-of-retinal-vein-occlusion-in-koreans
#12
Ko Un Shin, Jin Young Lee, Kyungdo Han, Su Jeong Song
PURPOSE: Retinal vein occlusion (RVO) is one of most common retinal vascular disorders. It can lead to visual impairment and subsequent socioeconomic loss among the working population. RVO peak incidence is known to occur in the fifth and sixth decades of life, and is more predominant in males. To date, there has been no consensus regarding the optimal screening age for individuals at high risk for RVO, or whether sex-dependent cut-offs may be appropriate. Therefore, the purpose of this study was to predict the sex-specific age threshold for increased risk of RVO in Koreans...
May 17, 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29787739/apathy-in-individuals-with-parkinson-s-disease-associated-with-mild-cognitive-impairment-a-neuropsychological-investigation
#13
Alberto Costa, Antonella Peppe, Silvia Zabberoni, Francesco Scalici, Carlo Caltagirone, Giovanni Augusto Carlesimo
Apathy is frequently reported in individuals with Parkinson's disease (PD) and is hypothesized to be associated with frontal-striatal related cognitive functions. Available data, however, do not provide univocal results. Moreover, this relationship has been poorly investigated in PD patients with mild cognitive impairment (MCI). This study was aimed at investigating the association between severity of apathy of PD patients and their performance on neuropsychological tests investigating executive abilities. Individuals with PD (i...
May 19, 2018: Neuropsychologia
https://www.readbyqxmd.com/read/29787491/detecting-cheating-when-testing-vision-variability-in-acuity-measures-reveals-misrepresentation
#14
Henrike Rianne Joanna Cornelie Ravensbergen, Belle I N A van Bree, Douwe M Broekens, David Lindsay Mann
SIGNIFICANCE: In certain scenarios, it is advantageous to misrepresent one's ability and "cheat" on vision tests. Our findings suggest that increased variability when testing visual acuity holds promise as a novel means to help detect this cheating and may generalize to other subjective tests of visual function. PURPOSE: People who cheat on vision tests generally do so to make their vision appear better than it actually is (e.g., for occupational or driving purposes)...
May 21, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29785989/cerebral-visual-impairment-in-children-causes-and-associated-ophthalmological-problems
#15
Niranjan Pehere, Pratik Chougule, Gordon N Dutton
Purpose: The aim of this study is to identify common causes, associated ophthalmological abnormalities, and systemic comorbidities in children in Andhra Pradesh, India, with cerebral visual impairment (CVI). Methods: A retrospective review of case records of all children aged <16 years with diagnosis of CVI seen between January 2016 and December 2016 was carried out. Data were collected for their age, gender, cause of CVI, refraction, accommodation, anterior and posterior segment examination findings, and systemic problems...
June 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29785584/interferon-free-therapy-in-hepatitis-c-virus-hcv-monoinfected-and-hcv-hiv-coinfected-patients-effect-on-cognitive-function-fatigue-and-mental-health
#16
Felix Kleefeld, Sophie Heller, Patrick Ingiliz, Heiko Jessen, Anders Petersen, Ute Kopp, Antje Kraft, Katrin Hahn
The efficacy and safety of interferon-free therapies for hepatitis C virus (HCV) infection have been reported. Considering the accumulating evidence for a direct central nervous system infection by HCV, we aim to evaluate the effect of direct acting antivirals (DAA) therapy on cognitive function in HCV patients. We conducted a longitudinal analysis of the cognitive performance of 22 patients (8 HCV+, 14 HCV+/HIV+) who completed neuropsychological testing at baseline and at week 12 after DAA therapy. In 20 patients, we analyzed specific attention parameters derived from an experimental testing based on the Theory of Visual Attention (TVA)...
May 21, 2018: Journal of Neurovirology
https://www.readbyqxmd.com/read/29785346/integrated-bioinformatic-changes-and-analysis-of-retina-with-time-in-diabetic-rats
#17
Zekai Cui, Qiaolang Zeng, Yonglong Guo, Shiwei Liu, Jiansu Chen
Diabetic retinopathy (DR) is the most common chronic complication of diabetes. It can cause impaired vision and even blindness. However, the pathological mechanism of DR is still unknown. In the present study, we use bioinformatic analysis to reveal the pathological changes of early DR in a streptozotocin (STZ) induced diabetes rat model. The dataset GSE28831 was downloaded from the Gene Expression Omnibus (GEO) database. To clarify the pathological mechanism of early DR, genes which were up-regulated (UP group) or down-regulated (DOWN group) over time were identified...
2018: PeerJ
https://www.readbyqxmd.com/read/29785316/a-pediatric-case-of-relapsing-remitting-multiple-sclerosis-onset-following-varicella-zoster-ophthalmicus-with-optic-neuritis
#18
Naoko Shiba, Yuji Inaba, Mitsuo Motobayashi, Makoto Nishioka, Yoichiro Kawasaki, Shunsuke Noda, Hiroki Matsuura, Norimoto Kobayashi, Takafumi Matsuoka, Akinori Nakamura, Yozo Nakazawa
Some epidemiological studies have implied a pathogenetic association between varicella zoster virus (VZV) and multiple sclerosis (MS); this, however, remains controversial. The present report describes a case involving an immunocompetent 10-year-old girl who developed relapsing-remitting MS following the prolonged reactivation of VZV inside the first branch of the trigeminal nerve, exhibiting herpes zoster ophthalmicus with severe optic neuritis. Symptoms related to herpes zoster ophthalmicus and MS appeared consecutively in the 10-week period after the appearance of vesicles...
2018: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/29785148/the-use-of-augmented-reality-glasses-in-central-line-simulation-see-one-simulate-many-do-one-competently-and-teach-everyone
#19
Cynthia Y Huang, Jonathan B Thomas, Abdullah Alismail, Avi Cohen, Waleed Almutairi, Noha S Daher, Michael H Terry, Laren D Tan
Objective: The aim of this study was to investigate the feasibility of using augmented reality (AR) glasses in central line simulation by novice operators and compare its efficacy to standard central line simulation/teaching. Design: This was a prospective randomized controlled study enrolling 32 novice operators. Subjects were randomized on a 1:1 basis to either simulation using the augmented virtual reality glasses or simulation using conventional instruction...
2018: Advances in Medical Education and Practice
https://www.readbyqxmd.com/read/29784621/endoscope-assisted-retrosigmoid-approach-in-hemifacial-spasm-our-experience
#20
Giampietro Ricci, Arianna Di Stadio, Luca D'Ascanio, Ruggero La Penna, Franco Trabalzini, Antonio Della Volpe, Jacques Magnan
INTRODUCTION: The use of surgical decompression of facial hemispasm due to the loop in the internal auditory canal is not always accepted due to the risk related to the surgical procedure. Currently a new surgical technique allows surgeons to work in safer conditions. OBJECTIVE: To report the results with endoscope-assisted retrosigmoid approach for facial nerve microvascular decompression in hemifacial spasm due to neurovascular conflict. The surgical technique is described...
May 9, 2018: Brazilian Journal of Otorhinolaryngology
keyword
keyword
86364
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"