Darcheville J C, Madelain L, Buquet C, Charlier J, Miossec Y
Labacolil, Université de Lille III, B.P. 149, 59653 Villeneuve d'ascq Cedex, France.
U279 INSERM, Pavillon Van Costenobel, Centre Hospitalier de Lille, 59037 Lille Cedex, France.
Behav Processes. 1999 Jun;46(2):131-9. doi: 10.1016/s0376-6357(99)00025-x.
Smooth pursuit is a complex behaviour which is not considered as totally functional at birth. The lack of maturation of the visuo-motor systems is generally invoked to explain this phenomenon. However, if this oculomotor response is an operant behaviour, an alternate explanation may be found in the absence of previous confrontation with the environmental contingencies. A first group of young infants were placed in situations in which their oculomotor responses could produce an auditory stimulus. In such situations, young infants are able to improve their pursuit. Music was randomly delivered to a second group. No music was delivered to a third group. For the last two groups no augmentation of the proportion of slow movements was observed. Our main conclusion is that visual tracking has the properties of an operant behaviour and may be enhanced at birth. These results will be discussed within the frameworks of the behavioural discrepancy and of the maturationist hypotheses of the ocular motor control.
平稳跟踪是一种复杂行为，出生时并不被认为完全具备功能。通常认为视觉运动系统发育不成熟可解释这一现象。然而，如果这种眼球运动反应是一种操作性行为，那么在缺乏与环境偶然因素先前接触的情况下可能会找到另一种解释。第一组幼儿被置于其眼球运动反应能够产生听觉刺激的情境中。在这种情境下，幼儿能够改善他们的跟踪能力。音乐被随机播放给第二组幼儿。第三组幼儿则没有播放音乐。对于最后两组，未观察到慢速运动比例的增加。我们的主要结论是，视觉跟踪具有操作性行为的特性，并且在出生时可能会得到增强。这些结果将在行为差异框架以及眼球运动控制的成熟主义假设框架内进行讨论。
