Grabowska A, Budohoska W
Acta Neurobiol Exp (Wars). 1979;39(3):109-19.
The interactions between two letters presented in succession to neighboring regions of retina were investigated. The interstimulus intervals were: 0, 20, 60, 250 ms, 2.5 s. In control trials single letters were presented in two positions corresponding to the positions of letters in pairs. The recognition of a letter presented as the first element of pairs with either simultaneous presentation or with 250 ms delay of the second element was significantly better than the recognition of single letters. On the contrary, the interstimulus interval 20 and 60 ms yielded an increase of errors made in the recognition of the first letter. The results are interpreted in terms of inhibitory interactions between transient and sustained channels, and in terms of hypothesized excitatory connections between the cortical cells responding to visual elements forming more complex patterns.
研究了相继呈现给视网膜相邻区域的两个字母之间的相互作用。刺激间隔为：0、20、60、250毫秒、2.5秒。在对照试验中，单个字母呈现在与成对字母位置相对应的两个位置。当第二个字母与第一个字母同时呈现或延迟250毫秒呈现时，作为成对字母第一个元素呈现的字母的识别明显优于单个字母的识别。相反，20毫秒和60毫秒的刺激间隔会导致第一个字母识别错误增加。结果从瞬态和持续通道之间的抑制性相互作用，以及对形成更复杂模式的视觉元素做出反应的皮层细胞之间假设的兴奋性连接的角度进行了解释。
