Motohisa Osaka

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Accentuated sympathetic nerve activity (SNA) is a risk factor for cardiovascular events. In this review, we investigate our working hypothesis that potentiated activity of neurons in the rostral ventrolateral medulla (RVLM) is the primary cause of experimental and essential hypertension. Over the past decade, we have examined how RVLM neurons regulate(More)
BACKGROUND Patients with a reduced nonlinear component of heart rate regulation have a poorer outcome. METHODS AND RESULTS We investigated whether a nonlinear correlation between renal sympathetic nerve activity (RSNA) and blood pressure or renal blood flow is reduced in conscious, spontaneously hypertensive rats (SHR) by comparing them with normotensive(More)
Verbal names of colors used in daily life are essentially categorical in nature rather than a reference to the particular color of the object. Colors that cross the borders of color hue categories could be verbally coded, whereas colors within a single color category are likely difficult to be verbally coded due to the involvement of slight hue differences.(More)
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