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Gender characteristics of cerebral hemodynamics during complex cognitive functioning
- Source :
-
Brain & Cognition . Jun2011, Vol. 76 Issue 1, p123-130. 8p. - Publication Year :
- 2011
-
Abstract
- Abstract: 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 0.375Hz 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. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 02782626
- Volume :
- 76
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Brain & Cognition
- Publication Type :
- Academic Journal
- Accession number :
- 60155424
- Full Text :
- https://doi.org/10.1016/j.bandc.2011.02.009