MULTIPLE CONCURRENT VISUAL-MOTOR MAPPINGS - IMPLICATIONS FOR MODELS OF ADAPTATION
MULTIPLE CONCURRENT VISUAL-MOTOR MAPPINGS - IMPLICATIONS FOR MODELS OF ADAPTATION
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DOI：
10.1037/0096-1523.20.5.987
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发表时间：
1994-10-01
影响因子：
2.1
通讯作者：
WELCH, RB
中科院分区：
文献类型：
--
作者：
CUNNINGHAM, HA;WELCH, RB
先前关于视觉运动重排适应的研究表明，中枢神经系统一次只能准确地代表一个视觉运动映射。 这个想法在3个实验中进行了检验，其中受试者在2个最初干扰的映射（计算机输入设备的“正常”映射特性和正常映射的108度旋转）之间反复交替跟踪移动目标。 2个映射之间的交替导致旋转映射下的错误显着减少，并显着减少通常由映射之间的切换引起的适应后效。 颜色作为一个歧视性的线索，干扰与衰减的适应后效，和intermanual转移也进行了研究。 结果表明，多个并发的视觉-运动映射的能力，可能是由一个参数的过程控制附近的电机输出阶段的处理。
Previous research on adaptation to visual-motor rearrangement suggests that the central nervous system represents accurately only 1 visual-motor mapping at a time. This idea was examined in 3 experiments where subjects tracked a moving target under repeated alternations between 2 initially interfering mappings (the ''normal'' mapping characteristic of computer input devices and a 108-degrees rotation of the normal mapping). Alternation between the 2 mappings led to significant reduction in error under the rotated mapping and significant reduction in the adaptation aftereffect ordinarily caused by switching between mappings. Color as a discriminative cue, interference versus decay in adaptation aftereffect, and intermanual transfer were also examined. The results reveal a capacity for multiple concurrent visual-motor mappings, possibly controlled by a parametric process near the motor output stage of processing.