نتایج جستجو برای: lateralization

تعداد نتایج: 3425  

Journal: :AJNR. American journal of neuroradiology 2012
S Partovi B Jacobi N Rapps L Zipp S Karimi F Rengier J K Lyo C Stippich

BACKGROUND AND PURPOSE Brain tumors affecting language-relevant areas may influence language lateralization. The purpose of this study was to systematically investigate language lateralization in brain tumor patients using clinical language fMRI, comparing the results with a group of healthy volunteers. MATERIALS AND METHODS Fifty-seven strictly right-handed patients with left-hemispheric-spa...

Journal: :Hypertension 2016
Hironobu Umakoshi Mitsuhide Naruse Norio Wada Takamasa Ichijo Kohei Kamemura Yuichi Matsuda Yuichi Fujii Tatsuya Kai Tomikazu Fukuoka Ryuichi Sakamoto Atsushi Ogo Tomoko Suzuki Kazutaka Nanba Mika Tsuiki

Adrenal venous sampling is considered to be the most reliable diagnostic procedure to lateralize aldosterone excess in primary aldosteronism (PA). However, normative criteria have not been established partially because of a lack of data in non-PA hypertensive patients. The aim of the study was to investigate aldosterone concentration and its gradient in the adrenal vein of non-PA hypertensive p...

Journal: :Brain research 2008
Iris E Sommer André Aleman Metten Somers Marco P Boks René S Kahn

Many studies have investigated sex differences in language lateralization. Despite the large number of investigations, controversy about the presence of sex differences in lateralization remains. This study aims to provide a complete overview of sex differences in several reflections of language lateralization: handedness, asymmetry of the Planum Temporale (PT) and functional lateralization of ...

Journal: :Brain : a journal of neurology 2006
Bernd Weber Jörg Wellmer Markus Reuber Florian Mormann Susanne Weis Horst Urbach Jürgen Ruhlmann Christian E Elger Guillén Fernández

It is well recognized that the incidence of atypical language lateralization is increased in patients with focal epilepsy. The hypothesis that shifts in language dominance are particularly likely when epileptic lesions are located in close vicinity to the so-called language-eloquent areas rather than in more remote brain regions such as the hippocampus has been challenged by recent studies. Thi...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2009
Kristina A Pfannkuche Anke Bouma Ton G G Groothuis

Lateralization of brain and behaviour has been the topic of research for many years in neuropsychology, but the factors guiding its development remain elusive. Based on sex differences in human lateralization, four hypotheses have been postulated that suggest a role for androgens, specifically testosterone. With the discovery that lateralization is a fundamental principle in the organization of...

Journal: :Journal of the American College of Surgeons 2010
Aarti Mathur Clinton D Kemp Utpal Dutta Smita Baid Alejandro Ayala Richard E Chang Seth M Steinberg Vasilios Papademetriou Eileen Lange Steven K Libutti James F Pingpank H Richard Alexander Giao Q Phan Marybeth Hughes W Marston Linehan Peter A Pinto Constantine A Stratakis Electron Kebebew

BACKGROUND In patients with primary hyperaldosteronism, distinguishing between unilateral and bilateral adrenal hypersecretion is critical in assessing treatment options. Adrenal venous sampling (AVS) has been advocated by some to be the gold standard for localization of the responsible lesion, but there remains a lack of consensus for the criteria and the standardization of technique. STUDY ...

2013
Elisa Frasnelli

Traditionally, only humans were thought to exhibit brain and behavioral asymmetries, but several studies have revealed that most vertebrates are also lateralized. Recently, evidence of left-right asymmetries in invertebrates has begun to emerge, suggesting that lateralization of the nervous system may be a feature of simpler brains as well as more complex ones. Here I present some examples in i...

2013
Avichai Lustig Hadas Ketter-Katz Gadi Katzir

Lateralization is mostly analyzed for single traits, but seldom for two or more traits while performing a given task (e.g. object manipulation). We examined lateralization in eye use and in body motion that co-occur during avoidance behaviour of the common chameleon, Chamaeleo chameleon. A chameleon facing a moving threat smoothly repositions its body on the side of its perch distal to the thre...

Journal: :Autism research : official journal of the International Society for Autism Research 2015
Brandon Keehn Vanessa Vogel-Farley Helen Tager-Flusberg Charles A Nelson

Among the many experimental findings that tend to distinguish those with and without autism spectrum disorder (ASD) are face processing deficits, reduced hemispheric specialization, and atypical neurostructural and functional connectivity. To investigate the earliest manifestations of these features, we examined lateralization of event-related gamma-band coherence to faces during the first year...

Journal: :Anesthesiology and Pain Medicine 2012

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