Confirmation from structural, functional, and behavioral studies agree suggest a configuration of atypical lateralization in individuals with autistic spectrum disorders (ASD). It is suggested that patterns cortical atypicality are evident ASDs being common ASDs. The paper endeavors to better understand the relationship between alterations typical asymmetries functional ASD evolutionary terms. ...

BACKGROUND The ability to determine the direction of a sound source is based on the fact that sounds reach both cars at different times, phase, intensity and/or frequency. The perception of a sound source favors speech intelligibility in noisy environments. AIM To identify the minimum time of interaural delay--produces lateralization to the car which the stimulus reached first--through ascend...

Lateralization is the localisation or preference of function on one side of an organism, such asthe human tendency to have a dominant left or right hand. This is an example of individual-level lateralization, but populations can be lateralized as well. A population that deviates froma 1:1 ratio of left-lateralized to right-lateralized individuals is said to exhibit population-le...

Early evidence for lateralization at a population and/or individual level in 'lower' vertebrates is reviewed. The lateralities include structural asymmetries in the epithalamus of several species of fish and amphibians, asymmetries in the location of both eyes on the same side of the head and of the dorsal/ventral crossing at optic-chiasma in flatfish, asymmetries in copulatory organs of severa...

BACKGROUND Reverse total shoulder arthroplasty (RTSA) is widely used; however, the effects of RTSA geometric parameters on joint and muscle loading, which strongly influence implant survivorship and long-term function, are not well understood. By investigating these parameters, it should be possible to objectively optimize RTSA design and implantation technique. QUESTIONS/PURPOSES The purpose...

Direction of the embyro's head rotation is determined by asymmetrical expression of several genes (such as shh, nodal, lefty, and fgf8) in hensen's node. this genetically determined head-turning bias provides a base for light-aligned population lateralization in chicks, in which the direction of the lateralization is determined by genetic factors and the degree of the lateralization is determin...

Investigations were undertaken to determine which particular components of the flash visual-evoked cortical potential (VECP) lateralize on monocular stimulation in human albinos. Our results demonstrate that only the major positive component shows clear lateralization. Statistical analysis revealed that the latency lateralization was significant (P less than 0.001) while the amplitude lateraliz...

The superior longitudinal fascicle/fasciculus (SLF) is a major white matter tract connecting the frontal and parietal cortices in humans. Although SLF has often been analyzed as single entity, several studies have reported that segregated into three distinct branches (SLF I, II, III). They also right lateralization of III volume discussed its relationship with lateralized cortical functions fro...

Cerebral lateralization is an evolutionarily ancient adaptation, apparently ubiquitous among vertebrates. Despite demonstrated advantages of having a more lateralized brain, substantial variability in the strength of lateralization exists within most species. The underlying reasons for the maintenance of this variation are largely unknown. Here, we present evidence that the strength of laterali...