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Haque, Rafi U.; Manzanares, Cecelia M.; Brown, Lavonda N.; Pongos, Alvince L.; Lah, James J.; Clifford, Gari D.; Levey, Allan I. – Learning & Memory, 2019
The entorhinal-hippocampal circuit is one of the earliest sites of cortical pathology in Alzheimer's disease (AD). Visuospatial memory paradigms that are mediated by the entorhinal-hippocampal circuit may offer a means to detect memory impairment during the early stages of AD. In this study, we developed a 4-min visuospatial memory paradigm called…
Descriptors: Alzheimers Disease, Memory, Visual Perception, Spatial Ability
Hales, Jena B.; Broadbent, Nicola J.; Velu, Priya D.; Squire, Larry R.; Clark, Robert E. – Learning & Memory, 2015
Structures in the medial temporal lobe, including the hippocampus and perirhinal cortex, are known to be essential for the formation of long-term memory. Recent animal and human studies have investigated whether perirhinal cortex might also be important for visual perception. In our study, using a simultaneous oddity discrimination task, rats with…
Descriptors: Brain Hemisphere Functions, Animals, Eye Movements, Task Analysis
Chaminade, Thierry; Leutcher, Russia Ha-Vinh; Millet, Veronique; Deruelle, Christine – Brain and Cognition, 2013
We investigated the consequences of premature birth on the functional neuroanatomy of the dorsal stream of visual processing. fMRI was recorded while sixteen healthy participants, 8 (two men) adults (19 years 6 months old, SD 10 months) born premature (mean gestational age 30 weeks), referred to as Premas, and 8 (two men) matched controls (20…
Descriptors: Brain, Males, Task Analysis, Premature Infants
Diviney, Mairead; Fey, Dirk; Commins, Sean – Learning & Memory, 2013
Learning to navigate toward a goal is an essential skill. Place learning is thought to rely on the ability of animals to associate the location of a goal with surrounding environmental cues. Using the Morris water maze, a task popularly used to examine place learning, we demonstrate that distal cues provide animals with distance and directional…
Descriptors: Cues, Learning Processes, Task Analysis, Animals
Mongeon, David; Blanchet, Pierre; Messier, Julie – Brain and Cognition, 2013
The capacity to learn new visuomotor associations is fundamental to adaptive motor behavior. Evidence suggests visuomotor learning deficits in Parkinson's disease (PD). However, the exact nature of these deficits and the ability of dopamine medication to improve them are under-explored. Previous studies suggested that learning driven by large and…
Descriptors: Diseases, Learning Strategies, Learning Processes, Patients
Norton, Daniel J.; McBain, Ryan K.; Ongur, Dost; Chen, Yue – Brain and Cognition, 2011
Schizophrenia patients exhibit perceptual and cognitive deficits, including in visual motion processing. Given that cognitive systems depend upon perceptual inputs, improving patients' perceptual abilities may be an effective means of cognitive intervention. In healthy people, motion perception can be enhanced through perceptual learning, but it…
Descriptors: Schizophrenia, Visual Perception, Patients, Motion
Oerlemans, Anoek M.; Hartman, Catharina A.; Bruijn, Yvette G. E.; Franke, Barbara; Buitelaar, Jan K.; Rommelse, Nanda N. J. – Journal of Child Psychology and Psychiatry, 2015
Background: We may improve our understanding of the role of common versus unique risk factors in attention-deficit/hyperactivity disorder (ADHD) by examining ADHD-related cognitive deficits in single- (SPX), and multi-incidence (MPX) families. Given that individuals from multiplex (MPX) families are likely to share genetic vulnerability for the…
Descriptors: Incidence, Attention Deficit Hyperactivity Disorder, Role, Neurological Impairments
Hirnstein, Marco; Bayer, Ulrike; Ellison, Amanda; Hausmann, Markus – Neuropsychologia, 2011
The underlying cognitive and neural mechanisms of the ability to discriminate left from right are hardly explored. Clinical studies from patients with impairments of left-right discrimination (LRD) and neuroimaging data suggest that the left angular gyrus is particularly involved in LRD. Moreover, it is argued that the often reported sex…
Descriptors: Stimulation, Females, Patients, Brain Hemisphere Functions
Grinter, Emma J.; Maybery, Murray T.; Pellicano, Elizabeth; Badcock, Johanna C.; Badcock, David R. – Journal of Child Psychology and Psychiatry, 2010
Background: Several researchers have found evidence for impaired global processing in the dorsal visual stream in individuals with autism spectrum disorders (ASDs). However, support for a similar pattern of visual processing in the ventral visual stream is less consistent. Critical to resolving the inconsistency is the assessment of local and…
Descriptors: Autism, Pervasive Developmental Disorders, Visual Perception, Geometric Concepts
Telling, Anna L.; Meyer, Antje S.; Humphreys, Glyn W. – Brain and Cognition, 2010
When young adults carry out visual search, distractors that are semantically related, rather than unrelated, to targets can disrupt target selection (see [Belke et al., 2008] and [Moores et al., 2003]). This effect is apparent on the first eye movements in search, suggesting that attention is sometimes captured by related distractors. Here we…
Descriptors: Semantics, Eye Movements, Young Adults, Patients
De Moura, Maria Clara Drummond Soares; do Valle, Luiz Eduardo Ribeiro; Resende, Maria Bernadete Dutra; Pinto, Katia Osternack – Developmental Medicine & Child Neurology, 2010
Aim: The cognitive deficits present in the Duchenne muscular dystrophy (DMD) are not yet well characterized. Attention, considered to be the brain mechanism responsible for the selection of sensory stimuli, could be disturbed in DMD, contributing, at least partially, to the observed global cognitive deficit. The aim of this study was to…
Descriptors: Etiology, Neurological Impairments, Diseases, Spatial Ability
Mayor-Dubois, C.; Maeder, P.; Zesiger, P.; Roulet-Perez, E. – Neuropsychologia, 2010
We investigated procedural learning in 18 children with basal ganglia (BG) lesions or dysfunctions of various aetiologies, using a visuo-motor learning test, the Serial Reaction Time (SRT) task, and a cognitive learning test, the Probabilistic Classification Learning (PCL) task. We compared patients with early (less than 1 year old, n=9), later…
Descriptors: Reaction Time, Neurological Impairments, Pathology, Patients
Humphreys, Glyn W.; Hodsoll, John; Riddoch, M. Jane – Journal of Experimental Psychology: Human Perception and Performance, 2009
The authors present neuropsychological evidence distinguishing binding between form, color, and size (cross-domain binding) and binding between form elements. They contrasted conjunctive search with difficult feature search using control participants and patients with unilateral parietal or fronto/temporal lesions. To rule out effects of task…
Descriptors: Difficulty Level, Patients, Experimental Psychology, Neurological Impairments
Lee, Byung Hwa; Suh, Mee Kyung; Kim, Eun-Joo; Seo, Sang Won; Choi, Kyung Mook; Kim, Gyeong-Moon; Chung, Chin-Sang; Heilman, Kenneth M.; Na, Duk L. – Neuropsychologia, 2009
Patients with right hemisphere injury often omit or misread words on the left side of a page or the beginning letters of single words (neglect dyslexia). Our study involving a large sample of acute right hemisphere stroke investigated (1) the frequency of neglect dyslexia (ND), (2) the association between ND and other types of contralesional…
Descriptors: Brain Hemisphere Functions, Dyslexia, Patients, Severity (of Disability)
Jannink, Michiel J. A.; Aznar, Miguel; de Kort, Alexander Cornelis; van de Vis, Wim; Veltink, Peter; van der Kooij, Herman – International Journal of Rehabilitation Research, 2009
One of the neuropsychological deficits that can result from a stroke is the neglect phenomenon. Neglect has traditionally been assessed with paper-and-pencil tasks, which are administered within the reaching space of a person. The purpose of this explorative study is to investigate whether it is possible to assess neglect in the extrapersonal…
Descriptors: Computer Simulation, Vision, Older Adults, Patients
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