The association between atypical laterality and mental retardation has been reported several times, particularly in Down syndrome (DS). We investigated common genetic correlates of these components of the syndrome, examining direction (number of right paw entries in the Collins test) and degree (absolute difference between the number of right paw entries and the number of left paw entries) in m...

PURPOSE We sought to determine whether visual field abnormalities occur in infants with deformational posterior plagiocephaly and to assess whether there is a relationship between the severity and laterality of visual field abnormalities with the severity and laterality of skull deformity. METHODS A retrospective chart review was performed on 40 consecutive infants with deformational posterio...

Population-level laterality is generally considered to reflect functional brain specialization. Consequently, the strength of population-level laterality in manipulatory tasks is predicted to positively correlate with task complexity. This relationship has not been investigated in tool manufacture. Here, we report the correlation between strength of laterality and design complexity in the manuf...

Background: Headache and epilepsy are two common chronic and recurrent disorders. Headache may be a premonitory or postdromic symptom of epileptic seizures. Objective: This study aims to evaluate the prevalence of migraine and tension type headache in epileptic patients. Materials and Methods: In a cross-sectional descriptive study, 100 patients with epilepsy who referred to the neurology clini...

headache is a common symptom that constitutes a major health problem to all countries in the world. this study was conducted to estimate the prevalence of migraine and tension -type headaches(tth), its associated occupational risk factors among shiraz hospitals staffs, and to report on clinical characteristics of migraine and tth with using the international headache society (ihs) diagnosis cri...

From behavioral studies it is known that auditory spatial resolution of azimuthal space declines over age. To date, it is not clear how age affects the respective sensory auditory processing at the pre-attentive level. Here we tested the hypothesis that pre-attentive processing of behaviorally perceptible spatial changes is preserved in older adults. An EEG-study was performed in older adults (...

Spatially lateralised deficits that typically define the hemispatial neglect syndrome have been shown to co-occur with other non-lateralised deficits of attention, memory, and drawing. However even a simple graphic task involves multiple planning components, including the specification of drawing start position and drawing direction. In order to investigate the influence of these factors in neg...

Correlations between lateralised behaviour and performance were investigated in 19 agility-trained dogs (Canis familiaris) by scoring paw preference to hold a food object and relating it to performance during typical agility obstacles (jump/A-frame and weave poles). In addition, because recent behavioural studies reported that visual stimuli of emotional valence presented to one visual hemifiel...