Hemodynamic response function in patients with stroke-induced aphasia: Implications for fMRI data analysis
نویسندگان
چکیده
منابع مشابه
Hemodynamic response function in patients with stroke-induced aphasia: implications for fMRI data analysis.
Functional MRI is based on changes in cerebral microvasculature triggered by increased neuronal oxidative metabolism. This change in blood flow follows a pattern known as the hemodynamic response function (HRF), which typically peaks 4-6 s following stimulus delivery. However, in the presence of cerebrovascular disease the HRF may not follow this normal pattern, due to either the temporal signa...
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Objectives: The brain’s widespread neural functions lead to aphasia in which the patients experience difficulties in cognitive and language functions. Memory, type, and severity of aphasia are associated with language and the naming process. In the current study, we investigated the relationship between memory, type, and severity of aphasia using the confrontation naming test in post-stroke pat...
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ژورنال
عنوان ژورنال: NeuroImage
سال: 2007
ISSN: 1053-8119
DOI: 10.1016/j.neuroimage.2007.02.035