نتایج جستجو برای: brain activation
تعداد نتایج: 860866 فیلتر نتایج به سال:
Introduction: The association between depression and brain systems has received both theoretical and empirical support. However, less is known about the behavioral brain systems and postpartum blues in this relationship. This research investigates the role of neuropsychological structures in postpartum blue: According revised reinforcement sensitivity theory. Methods: The present study was a de...
Background: According to the brain-behavioral systems theory, behavioral inhibition and behavioral activation systems contribute to the development of many psychopathological conditions. Given that anxiety and depression are the most common emotional disorders and the fact that they are highly overlapping, the aim of this study was to compare the brain-behavioral systems in the...
Introduction: The present study aimed to investigate brain-behavioral systems, early maladaptive schemas and premenstrual syndrome as predictors of postpartum blues. Methods: The present study was a descriptive correlational research. Study population included all referred females who diagnosed as mothers with postpartum depression in health centers of Mashahd city during 2018. A total sample o...
Introduction: Brain injury induces an almost immediate response from glial cells, especially astrocytes. Activation of astrocytes leads to the production of inflammatory cytokines and reactive oxygen species that may result in secondary neuronal damage. Melatonin is an anti-inflammatory and antioxidant agent, and it has been reported to exert neuroprotection through the prevention of neuronal d...
this thesis attempts to investigate the effects of prelistening activities on enhancing iranian efl learners` listening comprehension. the present study investigated ways in which learners` background knowledge could be activated in order to enhance their l2 listening comprehension by limiting the number of possible text interpretations prior to listening. the experiments conducted in this stud...
Introduction: In recent years, optical imaging has attracted a lot of attention from scholars as a non- aggressive, efficient method for evaluating the activities of the motor cortex in the brain. Functional near-infrared spectroscopy (fNIRS (is a tool showing the hemodynamic changes in a cortical area of the brain according to optical principles. The present study has been de...
introduction: a fixed hemodynamic response function (hrf) is commonly used for functional magnetic resonance imaging (fmri) analysis. however, hrf may vary from region to region and subject to subject. we investigated the effect of locally estimated hrf (in functionally homogenous parcels) on activation detection sensitivity in a heroin cue reactivity study. methods: we proposed a novel explora...
Introduction: Clustering of human brain is a very useful tool for diagnosis, treatment, and tracking of brain tumors. There are several methods in this category in order to do this. In this study, modified balanced iterative reducing and clustering using hierarchies (m-BIRCH) was introduced for brain activation clustering. This algorithm has an appropriate speed and good scalability in dealing ...
introduction: this paper investigates the relationships between extraversion, neuroticism and psychoticism dimensions with brain / behavioral systems. methods: randomly selected 128 female university students in tehran completed gray-wilson personality questionnaire and eysenck personality questionnaire-reversion, using pearson correlation coefficiency and regression analysis, result: the resul...
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