نتایج جستجو برای: hemisphere
تعداد نتایج: 24016 فیلتر نتایج به سال:
Purpose: To determine and record the dimensions of different parts of the cerebellum and compare them according to age and sex in healthy individuals by Magnetic Resonance Imaging (MRI). Materials and Methods: In this observational study, 300 healthy individuals were Who had referred to the imaging center of Imam Reza Hospital in Kermanshah for MRI were studied. The condition for inclusion in t...
The right cerebral hemisphere may be relatively specialized for parsing simple visual stimuli according to default rules, such as the Gestalt laws of perceptual organization, whereas the left cerebral hemisphere may be relatively specialized for overriding such default rules. We extend this model to 'semantically rich domains' by performing a divided-visual-field experiment on 16 chessmasters. ...
Introduction Due to structural characteristics of the visual pathways, stimuli that are presented in the right half of the visual field (RVF) are initially projected to the left cerebral hemisphere, while those presented in the left half of the visual field (LVF) are projected to the right cerebral hemisphere. This anatomical feature has frequently been taken to support the notion that the well...
Purpose: This study sought to determine sex differences in surface anatomical parameters (thickness and surface areas) of human cerebral cortex in different lobes of the left hemisphere in normal right-handed subjects and right-handed subjects suffering from Alzheimer and Parkinson's diseases. Materials and Methods: This cross-sectional descriptive study was performed on 72 normal human brains...
Given the importance of moderator and mediator variables in Detection and prediction of mental disorders, the main objective of this study was to investigate the mediator or moderator role of hemisphere preference in relationship between suppression and social anxiety. In this study, 120 high school female students who were selected using cluster sampling, formed the research sample. In t...
Background: Muscle fatigue has been known to influence brain activity, but very little is known about how cortical centers respond to muscle fatigue.Objective: This study was conducted to investigate the effects of muscle contraction and fatigue induced by two different percents of maximal voluntary contraction (MVC) on Electroencephalography (EEG) signals.Material and Methods: In t...
background: pragmatics is appropriate use of language across a variety of social contexts that provides accurate interpretation of intentions. the occurrence of the right hemisphere lesions can interfere with pragmatic abilities, and particularly with the processing of nonliteral speech acts. methods: since the objective of this study was to assess different aspects of pragmatic...
The behaviors involved in complex human tool use cut across boundaries traditionally drawn between social, cognitive, perceptual and motor processes. Longstanding neuropsychological evidence suggests a distinction between brain systems responsible for representing: (1) semantic knowledge about familiar tools and their uses, and (2) the acquired skills necessary for performing these actions. Con...
Visuospatial functions are typically lateralized to the right cerebral hemisphere, giving rise to a left visual field advantage in visual half-field tasks. In a first study we investigated whether this is also true for symmetry detection off fixation. Twenty right-handed participants with left hemisphere speech dominance took part in a visual half-field experiment requiring them to judge the sy...
Current evidence suggests an association between contralesional extra-personal hemineglect, and deficits of arm position sense in patients with damage to the right cerebral hemisphere. A unitary deficit may produce both disorders, or this association may reflect the anatomical contiguity of relevant brain structures. A rehabilitation treatment, devised for visual-spatial hemineglect, was used t...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید