objectives: the purpose of the present study was comparing visuo-spatial attention between children with attention deficit hyperactivity disorder-inattentive (adhd-i) type and normal children. methods: in this cross-sectional study fifteen (7-10 years of age) children were classified with adhd-i type and 15 normal children were matched for age, sex, and iq. they were selected trough simple rand...

apert syndrome is a congenital craniosynostosis syndrome comprising of bilateral coronal synostosis , symmetric syndactyly of hands and feet and midface hypoplasia. we present an atypical phenotype of this syndrome with right sided unilateral coronal synostosis. however, type i apert hand and other clinical and radiological features suggestthe diagnosis. genetic analysis revealed an absence of ...

one of the more infrequent congenital diseases with a wide spectrum of symptoms and more complications of the right side of pulmonary artery (63% according to ten harkel) is unilateral pulmonary artery agenesis (upaa). the clinical presentation is variable, and many patients can be asymptomatic for many years and even throughout their lives. although the disease more frequently appears in child...

quantitative histology of the descended testis of unilateral cryptorchid bucks was compared with testis of normal bucks to evaluate the reproductive potentials of the scrotal testis in unilateral cryptorchids, using light microscopy techniques. the contralateral scrotal testes of the unilateral cryptorchids and the testes of the normal bucks contained profiles of seminiferous epithelium and eac...

Chondroid syringoma (CS) of the orbit is an extremely rare benign neoplasm. To the best of our knowledege, this is the second case reported in the english litérature.We report a case of a 41-year-old woman with orbital CS. This tumor developed slowly over 8 years causing indolor, no axil, exophtalmos of the left eye. Computed tomography demonstrated an isodense intraorbital tumor with homogeneo...

Monocular deprivation (MD) for a few days during a critical period of development leads to loss of cortical responses to stimulation of the deprived eye. Despite the profound effects of MD on cortical function, optical imaging of intrinsic signals and single-unit recordings revealed that deprived eye responses and orientation selectivity recovered a few hours after restoration of normal binocul...

In human (D. H. Baker, T. S. Meese, & R. J. Summers, 2007b) and in cat (B. Li, M. R. Peterson, J. K. Thompson, T. Duong, & R. D. Freeman, 2005; F. Sengpiel & V. Vorobyov, 2005) there are at least two routes to cross-orientation suppression (XOS): a broadband, non-adaptable, monocular (within-eye) pathway and a more narrowband, adaptable interocular (between the eyes) pathway. We further charact...

A monocular boundary contour (MBC) rivalry stimulus has two half-images, a homogeneous grating and the same homogeneous grating with an additional disc region. The outline/frame of the MBC disc is created by relative phase-shift, or orientation-difference. We found the increment contrast threshold and reaction time to detect a monocular Gabor probe elevated on the homogeneous half-image pedesta...

Recent experiments have established that monocular areas arising due to occlusion of one object by another contribute to stereoscopic depth perception. It has been suggested that the primary role of monocular occlusions is to define depth discontinuities and object boundaries in depth. Here we use a carefully designed stimulus to demonstrate empirically that monocular occlusions play an importa...