Damage to the right superior longitudinal fasciculus in the inferior parietal lobe plays a role in spatial neglect

Shinoura, Nobusada; Suzuki, Yuichi; Yamada, Ryuzo; Tabei, Yusuke; Saito, Kuniaki; Yagi, Kazuo

doi:10.1016/j.neuropsychologia.2009.05.010

Cited by 95 publications

(72 citation statements)

References 24 publications

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“…This is consistent with previous fMRI studies which showed that the abstract reasoning performance significantly activated the SPL region (Goel et al, 2000;Goel & Dolan, 2001;Knauff et al, 2002Knauff et al, , 2003. In general, SPL is associated with spatial processing based on evidence from fMRI (Takahama et al, 2010;Thakral & Slotnick, 2009), neurological patients (Ferber & Danckert, 2006;Shinoura et al, 2009) and TMS studies (Hamidi et al, 2008(Hamidi et al, , 2009. Some authors have claimed that cognitive processes of constructing and manipulating spatially organized mental models are essential for deductive reasoning (Johnson-Laird, 1999, 2001.…”

Section: The Role Of Spl In Abstract Reasoningsupporting

confidence: 89%

Neural Mechanisms for Dual-Process Reasoning: Evidence from the Belief-Bias Effect

Tsujii¹,

Sakatani²

2012

Advances in Brain Imaging

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Section: The Role Of Spl In Abstract Reasoningsupporting

confidence: 89%

Neural Mechanisms for Dual-Process Reasoning: Evidence from the Belief-Bias Effect

Tsujii¹,

Sakatani²

2012

Advances in Brain Imaging

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“…44,45 Several studies have pointed out that the right-hemispheric dominance for attentional functions has an anatomic basis. 26,43,46 Children and adults with ADHD show attention difficulties for the left visual field [47][48][49] and an altered architecture of right-hemispheric attentional mechanisms, and more specifically, deficits in the right anterior region have been implicated. 48 Our results extend these findings by pinpointing reduced white matter microstructural integrity in the right SLF as a potential locus for impaired response stability as measured with τ.…”

Section: Discussionmentioning

confidence: 99%

Lower white matter microstructure in the superior longitudinal fasciculus is associated with increased response time variability in adults with attention-deficit/hyperactivity disorder

Wolfers

Onnink

Zwiers

et al. 2015

jpn

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IntroductionAttention-deficit/hyperactivity disorder (ADHD) is characterized by a pervasive pattern of age-inappropriate inattentive behaviour and/or impulsiveness and hyperactivity. Although ADHD is often viewed as a childhood disorder, it also affects 2.5% of adults, 1 which has profound negative implications for the patients themselves, their social environment and society. The pathophysiology of ADHD is still poorly understood owing in part to its substantial clinical and etiological heterogeneity. Increased response time variability (RTV) is one of the most common characteristics of patients with ADHD. Response time variability is the moment-to-moment fluctuation of performance in neuropsychological response time experiments and has been found to be increased in patients with ADHD across a number of different experimental paradigms, including sustained attention, flanker interference and working memory tasks (for reviews see the studies by Tamm and colleagues 3 and Kofler and colleagues 4 ). Recent studies suggest that increased performance variability in patients with ADHD might be a neurocognitive marker and may serve as a potential endophenotype for this disorder. 5,6 In addition to capturing RTV through standard deviation (SD) of response time (RT), other quantitative measures of RTV have also been reported. The exponentially modified Gaussian (ex-Gaussian) method, for example, provides quantification of the shapes of Background: Response time variability (RTV) is consistently increased in patients with attention-deficit/hyperactivity disorder (ADHD). A right-hemispheric frontoparietal attention network model has been implicated in these patients. The 3 main connecting fibre tracts in this network, the superior longitudinal fasciculus (SLF), inferior longitudinal fasciculus (ILF) and the cingulum bundle (CB), show microstructural abnormalities in patients with ADHD. We hypothesized that the microstructural integrity of the 3 white matter tracts of this network are associated with ADHD and RTV. Methods: We examined RTV in adults with ADHD by modelling the reaction time distribution as an exponentially modified Gaussian (ex-Gaussian) function with the parameters μ, σ and τ, the latter of which has been attributed to lapses of attention. We assessed adults with ADHD and healthy controls using a sustained attention task. Diffusion tensor imaging-derived fractional anisotropy (FA) values were determined to quantify bilateral microstructural integrity of the tracts of interest. Results: We included 100 adults with ADHD and 96 controls in our study. Increased τ was associated with ADHD diagnosis and was linked to symptoms of inattention. An inverse correlation of τ with mean FA was seen in the right SLF of patients with ADHD, but no direct association between the mean FA of the 6 regions of interest with ADHD could be observed. Limitations: Regions of interest were defined a priori based on the attentional network model for ADHD and thus we might have missed effects in other networks. Conclusion: This stud...

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“…In the left dominant hemisphere, it is involved in language (deep part, called the arcuate fascicle) and speech articulation (lateral part), while in the right hemisphere, it is involved in visuospatial processing, vestibular function, and some aspects of language, such as prosody. 93,132,136 During performance of an intraoperative double task (movement and picture naming), stimulation of SLF fibers may elicit speech production disorders, involuntary language switching, working memory impairments, or phonemic paraphasia. 41,43,103 Interestingly, these symptoms may occur during resection of frontal, parietal, insular, posterotemporal, or anterooccipital tumors.…”

Section: Selection Of Tasks Based On Relationships Between Tumor and mentioning

confidence: 99%

Selection of intraoperative tasks for awake mapping based on relationships between tumor location and functional networks

Coello

Moritz‐Gasser

Martino

et al. 2013

JNS

162

122

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Intraoperative electrical brain mapping is currently the most reliable method to identify eloquent cortical and subcortical structures at the individual level and to optimize the extent of resection of intrinsic brain tumors. The technique allows the preservation of quality of life, not only allowing avoidance of severe neurological deficits but also facilitating preservation of high neurocognitive functions. To accomplish this goal, however, it is crucial to optimize the selection of appropriate intraoperative tasks, given the limited intrasurgical awake time frame. In this review, the authors' aim was to propose specific parameters that could be used to build a personalized protocol for each patient. They have focused on lesion location and relationships with functional networks to guide selection of intrasurgical tasks in an effort to increase reproducibility among neurooncological centers.

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Damage to the right superior longitudinal fasciculus in the inferior parietal lobe plays a role in spatial neglect

Cited by 95 publications

References 24 publications

Neural Mechanisms for Dual-Process Reasoning: Evidence from the Belief-Bias Effect

Neural Mechanisms for Dual-Process Reasoning: Evidence from the Belief-Bias Effect

Lower white matter microstructure in the superior longitudinal fasciculus is associated with increased response time variability in adults with attention-deficit/hyperactivity disorder

Selection of intraoperative tasks for awake mapping based on relationships between tumor location and functional networks

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