Wickelgren E A, Bingham G P
Department of Psychology, Indiana University, USA.
J Exp Psychol Hum Percept Perform. 2001 Aug;27(4):942-52.
The authors investigated whether infants are sensitive to visual event trajectory forms, and whether they are sensitive to the underlying dynamics of trajectory forms. The authors habituated 8-month-old infants to a videotaped event run either forward or reversed in time and then switched them to the same event run in the opposite direction. Infants dishabituated when switched to the event with the novel direction in time, indicating sensitivity to the form of the trajectory. Infants exhibited equivalent habituation rates and looking times for forward and reversed events, thus failing to provide evidence that infants are sensitive to the underlying dynamics. In a partial replication of this first experiment, the same pattern of results was found. Both experiments revealed infant sensitivity to the trajectory forms, but not the underlying dynamics of events. The authors discuss implications for methods used in infant event perception studies.
作者们研究了婴儿是否对视觉事件轨迹形式敏感，以及他们是否对轨迹形式的潜在动态敏感。作者们让8个月大的婴儿对一段录像事件进行习惯化，该事件可以是正常时间播放或倒放，然后将他们切换到以相反方向播放的相同事件。当切换到时间方向新颖的事件时，婴儿出现去习惯化，这表明他们对轨迹形式敏感。婴儿对正向和反向事件表现出相同的习惯化率和注视时间，因此没有提供证据表明婴儿对潜在动态敏感。在对第一个实验的部分重复中，发现了相同的结果模式。两个实验都揭示了婴儿对轨迹形式敏感，但对事件的潜在动态不敏感。作者们讨论了婴儿事件感知研究中所用方法的意义。
