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Biases in Attentional Orientation and Magnitude Estimation Explain Crossover: Neglect is a Disorder of Both

Mark Mennemeier, Christopher A. Pierce, Anjan Chatterjee, Britt Anderson, George Jewell, Rachael Dowler, Adam J. Woods, Tannahill Glenn, Victor W. Mark
2005 Journal of Cognitive Neuroscience  
We conclude that attentional orientation and magnitude estimation are necessary and sufficient to explain crossover and that bias in magnitude estimation is a core component of neglect. &  ...  and magnitude estimation; and (3) attentional orientation predicts the direction of crossover, whereas a disorder of magnitude estimation, not previously emphasized in neglect, accounts for the quantitative  ...  Because the orientation/estimation hypothesis explains crossover in terms of normally occurring biases in attentional orientation and magnitude estimation, rather than deficits associated with neglect,  ... 
doi:10.1162/0898929055002454 pmid:16197678 pmcid:PMC4442679 fatcat:7tt5ruhieza2jbcztk2ztvxmf4

Page 1194 of Journal of Cognitive Neuroscience Vol. 17, Issue 8 [page]

2005 Journal of Cognitive Neuroscience  
Biases in Attentional Orientation and Magnitude Estimation Explain Crossover: Neglect is a Disorder of Both Mark Mennemeier’, Christopher A.  ...  We conclude that attentional orientation and magnitude estimation are necessary and sufficient to explain crossover and that bias in magnitude estimation is a core component of neglect. show contralesional  ... 

Rightward and leftward bisection biases in spatial neglect: two sides of the same coin?

S. Savazzi, L. Posteraro, G. Veronesi, F. Mancini
2007 Brain  
It is commonly pointed out that such a leftward bias is difficult to explain by traditional theories of neglect.  ...  In a series of five experiments, we investigated the crossover effect in 26 right-brain damaged patients: 17 with neglect without hemianopia, 4 with neglect and hemianopia and 6 without neglect or hemianopia  ...  We are grateful to the two anonymous referees for their constructive comments and suggestions. This paper is dedicated to the memory of Michele Girardi, a talented scientist and a very good friend.  ... 
doi:10.1093/brain/awm143 pmid:17584772 fatcat:7tea2xdg6zggbbnqfj3x3fprgy

The spatial representation of numbers: evidence from neglect and pseudoneglect

Carlo Umiltà, Konstantinos Priftis, Marco Zorzi
2008 Experimental Brain Research  
Phenomena like the Spatial Numerical Association of Response Codes (SNARC) eVect and the shifts of covert spatial attention caused by number processing are thought to support the notion that number magnitude  ...  This aim is achieved by reviewing the literature concerning the number interval bisection task in patients with left hemispatial neglect and in healthy participants (pseudoneglect).  ...  This response pattern could be explained by shifts of attention to the "left" and to the "right" of a spe-ciWc number interval on the MNL.  ... 
doi:10.1007/s00221-008-1623-2 pmid:18985329 fatcat:5w2h7kvry5dddovm5ps35jwipu

Neglected Time: Impaired Temporal Perception of Multisecond Intervals in Unilateral Neglect

James Danckert, Susanne Ferber, Carson Pun, Carol Broderick, Christopher Striemer, Sherry Rock, Dwight Stewart
2007 Journal of Cognitive Neuroscience  
Furthermore, these findings add to a growing body of literature suggesting that neglect cannot be understood simply in terms of a bias in orienting attention to one side of space.  ...  We examined the ability to estimate durations of up to 60 sec in a group of eight patients with unilateral neglect.  ...  Neglect is not typically considered a disorder of primary perceptual or motor capacities, but is instead thought to be due to deficient orienting of attention toward contralesional space (Husain & Rorden  ... 
doi:10.1162/jocn.2007.19.10.1706 pmid:17854283 fatcat:r224pvegk5gk7k34i3imv6qpku

When time is space: Evidence for a mental time line

Mario Bonato, Marco Zorzi, Carlo Umiltà
2012 Neuroscience and Biobehavioral Reviews  
An alternative hypothesis, which maintains a common system for magnitude processing, including time, space, and number, is also discussed.  ...  We present the empirical findings supporting the possibility that humans represent the subjective time flow on a spatially oriented "mental time line" that is accessed through spatial attention mechanisms  ...  In summary, PA, OKS and RHD are three conditions in which a bias in visuospatial attention, either due to an experimental manipulation or to the presence of a neuropsychological disorder, affects both  ... 
doi:10.1016/j.neubiorev.2012.08.007 pmid:22935777 fatcat:qzffsgrverafloppk35qaakuw4

Pseudoneglect: a review and meta-analysis of performance factors in line bisection tasks

George Jewell, Mark E. McCourt
2000 Neuropsychologia  
A meta-analysis of this same literature is performed in which the total quantitative data set, comprising 73 studies (or sub-studies) and 2191 subjects, is analyzed with respect to 26 performance factors  ...  An exhaustive qualitative (vote-counting) review is conducted of the literature concerning visual and non-visual line bisection in neurologically normal subject populations.  ...  to both advance the basic understanding of the neural substrates of the spatial allocation of attention, and ameliorate the often severe disabilities of the numerous patients who suer from this disorder  ... 
doi:10.1016/s0028-3932(99)00045-7 pmid:10617294 fatcat:hte2ukpkkvdhvdusc2nefrrane

Spatial attention: Differential shifts in pseudoneglect direction with time-on-task and initial bias support the idea of observer subtypes

Christopher S.Y. Benwell, Gregor Thut, Gemma Learmonth, Monika Harvey
2013 Neuropsychologia  
Asymmetry in human spatial attention has long been documented. In the general population the majority of individuals tend to misbisect horizontal lines to the left of veridical centre.  ...  Nonetheless in virtually all previously reported studies on healthy participants, there have been subsets of people displaying rightward biases.  ...  Acknowledgements We wish to thank those who participated in the study. This work was supported by the Economic and Social Research Council [Grant no. ES/I02395X/1].  ... 
doi:10.1016/j.neuropsychologia.2013.09.030 pmid:24076376 fatcat:pegq5a4p6jcb3atywaxpwva3xe

Quenched disorder and spin-glass correlations in XY nematics

L Petridis, E M Terentjev
2006 Journal of Physics A: Mathematical and General  
These results clarify what happens in the limiting cases of diminishing order parameter and disorder strength, that is near a phase transition of a pure system.  ...  We present a theoretical study of the equilibrium ordering in a 3D XY nematic system with quenched random disorder.  ...  LP would like to thank Kostas Roussakis, Isaac Perez Castillo and David Sherrington for many useful discussions.  ... 
doi:10.1088/0305-4470/39/31/003 fatcat:4eczlnvcxbck5opkscy6y4epi4

Is neuroenhancement by noninvasive brain stimulation a net zero-sum proposition?

Anna-Katharine Brem, Peter J. Fried, Jared C. Horvath, Edwin M. Robertson, Alvaro Pascual-Leone
2014 NeuroImage  
NBS techniques, such as transcranial magnetic stimulation and transcranial current stimulation, seem capable of enhancing cognitive functions in patients and in healthy humans, particularly when combined  ...  enhancement of function and its potential cost.  ...  Conflict of interest statement The authors declare that this article was written in the absence of any commercial, financial, or personal relationships that could be construed as a potential conflict of  ... 
doi:10.1016/j.neuroimage.2013.07.038 pmid:23880500 pmcid:PMC4392930 fatcat:c3uu4llsqfepndddktkznza7wq

Methylphenidate normalizes aberrant beta oscillations and reduces alpha power during retention in children with ADHD [article]

Cecilia Mazzetti, Niels ter Huurne, Jan K Buitelaar, Ole Jensen
2020 bioRxiv   pre-print
We hence implemented a double-blind placebo-controlled crossover design, where boys diagnosed with ADHD underwent behavioral and MEG measurements during a spatial attention task while on and off stimulant  ...  Attention Deficit-Hyperactivity Disorder (ADHD) has been intensively studied in neurodevelopmental research, with the aim to identify the neural substrates of the disorder.  ...  A child-friendly adaptation of a Posner cueing paradigm for spatial orienting of attention was used.  ... 
doi:10.1101/2020.03.13.990929 fatcat:xeezvptdtvbitc6zejrhhfnraq

Psychosocial Intervention Improves Depression, Quality of Life, and Fluid Adherence in Hemodialysis

D. Cukor, N. Ver Halen, D. R. Asher, J. D. Coplan, J. Weedon, K. E. Wyka, S. J. Saggi, P. L. Kimmel
2013 Journal of the American Society of Nephrology  
Patients with ESRD have high rates of depression, which is associated with diminished quality of life and survival.  ...  We determined whether individual cognitive behavioral therapy (CBT) reduces depression in hemodialysis patients with elevated depressive affect in a randomized crossover trial.  ...  The research reported in this publication was supported by the National Institutes of Health National Institute of Diabetes and Digestive and Kidney Diseases (award number K23DK076980).  ... 
doi:10.1681/asn.2012111134 pmid:24115478 pmcid:PMC3871769 fatcat:hgcuvfugxnho3ebwicqyoynrnq

Gold-induced nanowires on the Ge(100) surface yield a 2D and not a 1D electronic structure

N. de Jong, R. Heimbuch, S. Eliëns, S. Smit, E. Frantzeskakis, J.-S. Caux, H. J. W. Zandvliet, M. S. Golden
2016 Physical review B  
data, this phenomenon is discussed in the light of the effects of disorder.  ...  Despite our proof of the 2D nature of the Au-induced nanowire and sub-surface Ge-related states, an anomalous suppression of the density of states at the Fermi level is observed in both the STS and ARPES  ...  For 0 < K c < 1/3, δH J α always grows faster and hence T 2 is likely to occur first in all cases. An estimate for T 1 may be obtained by neglecting the renormalization for K c and J α .  ... 
doi:10.1103/physrevb.93.235444 fatcat:pfxc5dlgnvffdo4bp74bu77pwm

Abstracts Presented at the Twenty-Second Annual Meeting of the International Neuropsychological Society February 2–5, 1994 Cincinnati, Ohio

1995 Journal of the International Neuropsychological Society  
Patients with left sided neglect frequently crossover and bisect short lines to the left of midlinc, an observation difficult to explain.  ...  Crossover, Completion, and Confabulation in Unilateral Spatial Neglect.  ...  Determination of the effect of attention deficits on memory dysfunction in clinical populations is important for diagnostic and treatment purposes.  ... 
doi:10.1017/s1355617700000370 fatcat:7p4rjzdt6rdm3fecid7vuci5ra

Abstracts Presented at the International Neuropsychological Society, the Swiss Neuropshchological Society (SVNP), and the German Neuropsychological Society (GNP) Meeting, July 26–30, 2006, Zurich, Switzerland

2006 Journal of the International Neuropsychological Society  
Our study focused on volitional orienting in patients with right-hemisphere lesions (with and without neglect).  ...  Introduction: Attention Deficit Hyperactivity Disorder (ADHD) is a neurobiological disorder defined by core symptoms of inattention, hyper-/hypoactivity and impulsiveness.  ...  The aim of this study is to explore what model is apt to explain the metaphor elaboration, exploring both neuropsychological and representational levels involved in the comprehension.  ... 
doi:10.1017/s1355617706069955 fatcat:weo5fxgnqja2tlehcvrqmenrqe
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