hide
Free keywords:
-
Abstract:
This study aimed at revealing the neuronal correlates of the negative BOLD response (NBR). Electrical recordings were obtained from NBR regions in monkey V1 simultaneously with fMRI. The NBR was associated with a reduction in neuronal activity, both in the Multi-Unit-Activity and the Local-Field-Potential domains. The onset of the decrease in neuronal signal preceded the corresponding onset of the NBR, indicating that the origin of the NBR was a decrease in
neuronal activity that triggered a reduction in CBF, rather than decreased neuronal activity caused by reduced CBF.