Barton E J, Sparks D L
Division of Neuroscience, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA.
Vision Res. 2001 Aug;41(18):2393-406. doi: 10.1016/s0042-6989(01)00130-4.
Remembered saccades of rhesus monkeys are markedly influenced by starting eye position. Altering the initial position systematically affects the direction or amplitude of the movements to a striking degree. In general, changes in the horizontal or vertical starting position primarily produce changes in the horizontal or vertical component, respectively, regardless of whether the target displacement occurs in the horizontal or vertical direction. For some monkeys, a similar pattern of initial position influence on movement direction can be seen in the curvature of visually guided saccades. Starting position also modulates the upward offset in fixation, which monkeys display in the dark.
恒河猴的记忆性扫视受到起始眼位的显著影响。系统性地改变初始位置会在很大程度上影响运动的方向或幅度。一般来说，水平或垂直起始位置的变化主要分别产生水平或垂直分量的变化，而不论目标位移是发生在水平方向还是垂直方向。对于一些猴子，在视觉引导的扫视曲率中也可以看到初始位置对运动方向的类似影响模式。起始位置还会调节猴子在黑暗中表现出的注视向上偏移。
