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We list hundreds of Clinical Trials about "Involuntary down control search irrelevant features Visual working" on BioPortfolio. We draw our references from global clinical trials data listed on ClinicalTrials.gov and refresh our database daily.
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The aim is to understand which components of attentional deployment and selection are impaired in AD during searching in realistic scenes on a computer screen (Experiment 1) and in a natural setting (Experiment 2).The investigators will also examine how deficits in visual exploration may be related to impairments in semantic, long-term memory (LTM) and working memory (WM) representations by manipulating the semantic consistency between the target and its visual surroundings, an...
dyslexia is often considered like a phonological deficit but some researches show that a visual attention (V-A) deficit can occur in dyslexia. The investigator want to show that some dyslexics have a reduced V-A field in visual search when the investigator use separable feature (letter-like). If the investigator demonstrate that, he will show that V-A deficit can be transpose to an ability acquired before reading, the visual search. Therefore, the V-A deficit can't be a ...
The current project aims to investigate the efficacy of the visual imaging training (VIT) and alphabet search training in comparison to an active control intervention, namely psychoeducation information (PI) using fMRI in patients with amnestic mild cognitive impairment (MCI) and healthy elderly controls (HE). MCI patients will be grouped according to biomarkers (PET PIB, PET FDG and liquor).
The ability to maintain balance and avoid falling is highly dependent on the ability to locate objects and architectural features in the environment. This need to continually monitor the environment as one moves about in daily life suggests a critical role for visual attention, gaze control, and spatial memory, all of which are known to decline with aging. In this study, the investigators will test the efficacy of a computer-based visual-training program designed to improve the...
We are doing this pilot study to learn more about four aspects of treating depression: 1. The features of a depressed person’s mood and anxiety and how these features affect a person’s capacity to get better and stay better. 2. If depressed people with certain features of mood and anxiety respond better to therapy, medication or a combination of therapy and medication. 3. Whether or not a person’s personality traits affect how they respond to treatment....
The aim of this study is to measure visual acuity and contrast sensitivity using a novel reaction-time based visual field device Ocusweep compared to widely used methods. Addition to that. the aim is to validate a novel perimetry method (Visual Search Test, VST) which is based on reaction times in visual decision-making task, where the subject is allowed to move eyes and where the fixation is verified by the subject himself in contrast to standard automatic perimetry (SAP) whe...
This study will evaluate the influence of non-invasive brain stimulation on different elements of cognitive function in healthy persons between the ages of 18-90 years. It will specifically use transcranial direct current stimulation (tDCS) to evaluate the relationship between certain brain structures and cognitive abilities, like attention, working memory, visual search, etc.
This study tests the effectiveness of exposure therapy for fear of spiders as enhanced by the use of antagonistic or opposite actions during treatment. The goal of the study is to compare the efficacy threat-relevant opposite actions and threat-irrelevant opposite actions in extinguishing fear.
This study aims to describe in depth the CNS, CNS HIV reservoir and CNS viral rebound in consenting SEARCH 019 subjects prior to, during and after the SEARCH 019 study intervention (VHM + ART or ART only), at 1) baseline, 2) end of study intervention and start of ART interruption, 3) viral rebound (if occurring) or mid-way during observed ART interruption, and 4) at the end of ART interruption. Study SEARCH 026 itself does not employ any therapeutic interventions. However, cons...
There are large differences in knowledge between patients and healthcare providers (i.e. physicians, physician assistants and nurse practitioners), and there is a strong interest on the part of both industry and academia to reduce the gap in knowledge between patients and healthcare providers. Currently, about 1 in 20 searches on Google are health related. Among internet users, 72% reported searching for health information, and among persons who use mobile phones, 31% of cell p...
This study will examine a cognitive rehabilitation protocol targeted at working memory deficits for adults and children with Traumatic Brain Injury (TBI). In this randomized clinical trial, the efficacy of Cogmed, a cognitive rehabilitation protocol designed to improve working memory, will be examined in children with TBI. Neuropsychological and daily life functioning will be measured. Participants will be children (N=20) and adults (N=20) with a documented history of TBI. Part...
The purpose of this study is to investigate whether working memory training improves behavioral symptoms, neurocognitive performance, and neural functioning in young children with ADHD.
Different results have recently led to question the classical notion according to which the motor and cognitive deficits in Parkinson's disease are tied to a thalamo-cortical inhibition due to the degeneration of the dopaminergic nigro-striatal pathways. Instead, Parkinsons's disease seems accompanied by an increase in motor cortical activity. A reaction time task, known as the "Simon task" in the literature, allows one to study the influence of irrelevant visual information o...
Objectives: Upper eyelid retraction was believed to be maintained solely by voluntary contraction of the levator palpebrae superioris (LPS) and frontalis muscles, together with involuntary contraction of the sympathetically innervated Müller's muscle (MM). However, several studies have suggested that the LPS also undergoes involuntary contractions, and that a visual stimulus may not be the only trigger for frontalis muscle contractions. Recent studies hypothesized that the MM ...
The purpose of this study is to determine whether fixed-doses of an investigational drug, SD-809 (deutetrabenazine), will reduce the severity of abnormal involuntary movements of tardive dyskinesia.
The Rapid Study: Randomized Phase II Study To Expedite Allogeneic Transplant With Immediate Haploidentical Plus Unrelated Cord Donor Search Versus Matched Unrelated Donor Search For AML And High-Risk MDS Patients
The study seeks to compare time from formal search to hematopoietic cell transplantation (HCT) for patients 18 years and older, randomized between haplo-cord search and matched unrelated donor (MUD) search for patients with acute myeloid leukemia (AML) and high-risk myelodysplastic syndrome (MDS)
Background: Patients with schizophrenia are abnormally disturbed by information onsets, which may result in a disadvantage in filtering relevant information. It seems that they accord the same importance to all objects in a scene without taking into account the relevance of objects (cognitive salience) or their emotional charge (salience emotional). The paradigm of change blindness offers the interesting possibility of studying sensitivity to the sudden irruption of vis...
This study aims to determine the effectiveness of computer games to improve language and literacy outcomes for children who have hearing loss. Children will be assigned to one of four conditions: phonological awareness training, working memory training, phonological awareness + working memory training, or active control.
The purpose of this study is to determine if patients implanted with a St. Jude Medical (SJM) implantable cardioverter defibrillator (ICD) will benefit by using AutoIntrinsic Conduction Search (AICS) rather than only a programmed AV/PV delay. This study will compare the two methods of programming with respect to intrinsic activity.
Parkinson's disease (PD), which is generally considered to be a motor disorder, is now known to be accompanied in many instances by a variety of cognitive defects. This can be explained considering that PD is a neurodegenerative and progressive disorder of the basal ganglia system, which works modulating not only motor, but also cognitive and emotional behaviours. Concerning this, some studies suggest that non-demented PD patients may suffer from a voluntary selective visual a...
Aim: Assess the value of MRI features in predicting prognosis in patients with endometrial cancer This study will examine the MRI features of women with confirmed endometrial cancer to see if textural features can prognosticate patients.
PTSD is characterized by recurrent intrusion of trauma-related memories and images that cause significant distress and impairment to the affected individuals. The current project aims to examine whether computerized emotional working memory training (eWMT) can help improve working memory capabilities and reduce trauma-related emotional symptoms among individuals with elevated trauma-related symptoms. Participants will be randomly assigned to one of the two computerized training...
The investigators are interested in how attentional filter training/ distractor inhibition training could influence cognitive functions like working memory, executive control, problem solving, decision making and attentional control.
Reading can be an uncomfortable and difficult task for some people. Symptoms include unpleasant somatic and perceptual effects, such as eye-strain, headache, and blurred text, despite normal visual acuity. This condition has been called Visual Discomfort, but little is known about the symptoms and frequency of reading problems associated with this disorder. Several studies have proposed that Visual Discomfort is caused by increased noise in the visual system due to spreading co...
In this study, the investigators provide participants from ophthalmic clinic the AI visual inspection system and EDTRS in the purpose of seeking out a better way of visual inspection with high efficiency and accuracy, and report a prospective, randomized controlled study aiming at comparison of AI visual inspection system and EDTRS for visual inspection.