Hemodynamics and nonlinearities of BOLD response to ultrashort visual stimulation (5ms - 1s)


Introduction Blood oxygenation level dependent (BOLD) signal is used to detect changes in blood oxygenation and cerebral blood flow accompanying neural activity [1]. It has generally been suggested that one cannot temporally resolve alterations in neural activity in the range of milliseconds using BOLD signal since hemodynamic response evolves in seconds… (More)


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