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1953年Krieg首先提出在大脑视皮层区直接安上电刺激矩阵,将视野的空间图投射到大脑视皮层上,设想可能形成粗糙的形觉。但是受到一些专家怀疑,因而使这项很有价值的工作延迟了很久时间。1962年Buttor和Butnan为三个自愿者盲人在枕叶表面植入电极,经穿过头皮盖及颅骨板导线与光电转换的光电池相连接,当电池放电刺激视皮层时,三人均诉说有闪光感,有二人大体可以确定眼前有光源移动位置。虽然使用价值不大,可是为直接显像助视器研制起到了先例作用。
In 1953, Krieg first proposed to directly put the electrical stimulation matrix in the visual cortex of the brain, and projected the spatial image of the visual field onto the visual cortex of the brain, assuming that it may form a rough shape. However, it was suspected by some experts and this delayed the valuable work for a long time. In 1962 Buttor and Butnan for the three volunteers blind implanted in the occipital lobe electrodes through the scalp cover and skull plate wire and photoelectric conversion of the photovoltaic cells connected to the battery discharge to stimulate the visual cortex, , There are two people can generally determine the location of the light before moving. Although the use of value is not, but for direct imaging aids play a precedent role in the development.