کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
924227 | 921206 | 2011 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Gender characteristics of cerebral hemodynamics during complex cognitive functioning Gender characteristics of cerebral hemodynamics during complex cognitive functioning](/preview/png/924227.png)
Functional Transcranial Doppler sonography (fTCD) has been applied to assess peak mean cerebral blood flow velocity (MFV) with a high temporal resolution during cognitive activation. Yet, little attention has been devoted to gender-related alterations of MFV, including spectral analysis. In healthy subjects, fTCD was used to investigate a series of cerebral hemodynamic parameters in the middle cerebral arteries (MCA) during the Trail Making Tests (TMT), a means of selective attention and complex cognitive functioning. In females, there was a frequency peak at 0.375 Hz in both MCA, and we observed a dynamic shift in hemispheric dominance during that condition. Further, after the start phase, there was an MFV decline during complex functioning for the entire sample. These novel results suggest condition-specific features of cerebral hemodynamics in females, and it adds to the notion that gender is a fundamental confounder of brain physiology.
► Functional Transcranial Doppler sonography during complex cognitive functioning.
► Gender aspect of brain perfusion in the time and frequency domain.
► Females with a frequency peak at 0.375 Hz in both middle cerebral arteries.
► Dynamic shift in hemispheric dominance.
► Gender-specific features of cerebral hemodynamics.
Journal: Brain and Cognition - Volume 76, Issue 1, June 2011, Pages 123–130