Cortex-wide BOLD fMRI activity reflects locally-recorded slow oscillation-associated calcium waves
نویسندگان
چکیده
منابع مشابه
Cortex-wide BOLD fMRI activity reflects locally-recorded slow oscillation-associated calcium waves
Spontaneous slow oscillation-associated slow wave activity represents an internally generated state which is characterized by alternations of network quiescence and stereotypical episodes of neuronal activity - slow wave events. However, it remains unclear which macroscopic signal is related to these active periods of the slow wave rhythm. We used optic fiber-based calcium recordings of local n...
متن کامل"Slow activity transients" in infant rat visual cortex: a spreading synchronous oscillation patterned by retinal waves.
A primary feature of the preterm infant electroencephalogram is the presence of large infra-slow potentials containing rapid oscillations called slow activity transients (SATs). Such activity has not been described in animal models, and their generative mechanisms are unknown. Here we use direct-current and multisite extracellular, as well as whole-cell, recording in vivo to demonstrate the exi...
متن کاملCorrelation of fluctuations in simultaneously recorded VEP and BOLD fMRI
Introduction Studies comparing visual evoked potentials (VEPs) and BOLD signals have found a positive correlation between the VEP amplitude and the magnitude and extent of the BOLD signal [1, 2], but some VEP components are better related to the BOLD signal than others. The strongest spatial correlation have been found between the source location of the N1 peak* and the location of the BOLD sig...
متن کاملBOLD fMRI Correlation Reflects Frequency-Specific Neuronal Correlation
The brain-wide correlation of hemodynamic signals as measured with BOLD fMRI is widely studied as a proxy for integrative brain processes. However, the relationship between hemodynamic correlation structure and neuronal correlation structure remains elusive. We investigated this relation using BOLD fMRI and spatially co-registered, source-localized MEG in resting humans. We found that across th...
متن کامل0.1-Hz oscillation in fMRI BOLD signals and full-band LFPs in rat cortex
Target audience Researchers focusing on infraslow neural activities and neurovascular coupling in resting-state fMRI. Purpose Resting-state fMRI assumes neurovascular coupling between hemodynamics and spontaneous slow neural activities in cycle ranges of 10 sec to 100 sec. However, vascular contributions from the omnipresent vasomotion of blood flow flux (typically ~0.1 Hz) may certainly overla...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: eLife
سال: 2017
ISSN: 2050-084X
DOI: 10.7554/elife.27602