The hemodynamic initial-dip consists of both volumetric and oxymetric changes reflecting localized spiking activity

The initial-dip is a transient decrease frequently observed in functional neuroimaging signals, immediately after stimulus onset, believed to originate from a rise in deoxy-hemoglobin (HbR) caused by local neural activity. It has been shown to be more spatially specific than the hemodynamic response...

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Bibliographic Details
Main Authors: Ali Danish Zaidi, Niels Birbaumer, Eberhard Fetz, Nikos Logothetis, Ranganatha Sitaram
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-05-01
Series:Frontiers in Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fnins.2023.1170401/full