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Valsalva fMRI responses in the right superior cerebellar cortex in 33 healthy controls (23 male, age mean ± sd [range] = 52.3 ± 7.7 years). Region-of-interest from which signal is extracted is overlaid in yellow on an anatomical background. The protocol consists of four 18 s challenges of 30 mmHg minimum expiratory pressure, 1 min apart. All subjects achieved this pressure for all four challenges. Red is mean and green error bars are SEM (Data from Ogren et al., 2012).
