Using functional magnetic resonance imaging, the present study examined whether the comparison distance effect (CDE) and the priming distance effect (PDE) in number processing had the same underlying neural mechanisms. 24 healthy participants completed a number comparison task and a number priming task in the scanner. Imaging data were examined for brain regions selected based on a meta-analysi...

The article by Hund-Georgiadis et al on crossed nonaphasia in a "dextral" with left hemispheric lesion deserves attention because of the light it and similar cases throw on the subject of laterality and hemispheric dominance in humans. However, this requires abandoning certain conventionalism, which is the cause of the puzzlement they expressed as to the laterality of the results they obtained,...

OBJECTIVES To test the hypothesis that unilateral motor and sensory symptoms unexplained by identifiable disease are more common on the left side of the body than the right. METHODS Systematic review of the literature published since 1965. RESULTS 121 eligible studies, involving 1139 patients, were analysed. The pooled proportion of functional left sided weakness and sensory symptoms in adu...

Nowadays there is a significant increase of the incidence of left-handedness and sinistrality among schoolchildren. They demonstrate a large number of left-sided motor and sensory preferences which are considered as external markers of functional hemispheric asymmetry of the brain. The purposes of this study are to investigate gender peculiarities and specificity of age-related dynamics of late...

In aphasia due to stroke, language-related activity shifts not only to undamaged cortex within the dominant hemisphere but also toward right-sided areas homotopical to the left-sided lesion. We examined whether a rightward shift takes place in primary progressive aphasia (PPA). Nineteen PPA patients participated, 19 healthy subjects and 14 patients with amnestic mild cognitive impairment who se...