Kopecz K
Laboratory of Medical Physics & Biophysics, Nijmegen, The Netherlands.
Vision Res. 1995 Oct;35(20):2911-25. doi: 10.1016/0042-6989(95)00066-9.
The systematic variations of regular saccadic reaction times induced in gap/overlap paradigms are addressed by a quantitative model. Intentional and visual information are integrated on a retinotopic representation of visual space, on which activity dynamics is related to movement initiation. Using a specific conception of "motor preparation", known effects of general warnings and fixation point on- and offsets are reproduced. Results of new experiments are predicted and the extent to which fixation point offsets are specific to ocular responses is analyzed in the light of the exposed model architecture. Relations of the theoretical framework to neurophysiological findings are discussed.
一个定量模型探讨了间隙/重叠范式中诱发的规则扫视反应时间的系统变化。有意信息和视觉信息在视觉空间的视网膜拓扑表征上进行整合，在该表征上活动动态与运动启动相关。使用“运动准备”的特定概念，再现了一般警告以及注视点开启和关闭的已知效果。预测了新实验的结果，并根据所揭示的模型架构分析了注视点关闭对眼动反应的特异性程度。讨论了该理论框架与神经生理学发现的关系。
