FLICKER EVOKED INCREASE IN OPTIC-NERVE HEAD BLOOD-FLOW IN ANESTHETIZED CATS

NEUROSCIENCE LETTERS

卷:128

Article

RIVA, CE ; HARINO, S ; SHONAT, RD ; PETRIG, BL

关键词: BLOOD FLOW;    LASER DOPPLER FLOWMETRY;    OCULAR CIRCULATION;    OPTIC NERVE;    FLICKER;    NEURONAL ACTIVITY;    PO-2;    DARK ADAPTATION;   

DOI  :  10.1016/0304-3940(91)90282-X

来源: Elsevier

【 摘 要 】

The effect of diffuse luminance flicker stimulation of a large area (almost-equal-to 30-degrees diameter) on red blood cell flux (F) in the optic nerve head was measured in the anesthetized cat. F increased markedly during sustained flicker. The F-response to the initiation and cessation of the stimulation was found to occur within a few seconds. Upon sustained stimulation, the increase in F reached a plateau within approximately 2 min. Its level depended upon the intensity, frequency and wavelength of the stimulation and the state of adaptation of the retina. This stimulus offers a new and powerful means of investigating blood flow regulation in the optic nerve head (ONH).

【 授权许可】

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