Lansink J M, Richards J E
Department of Psychology, University of South Carolina, Columbia 29208, USA.
Child Dev. 1997 Aug;68(4):610-20.
In this study we examined the effect of heart rate and behavioral measures of attention on distractibility of 6-, 9-, and 12-month-old infants. The infants were presented with a toy, and a distractor was presented while they attended to the toy. The distractor was presented during heart rate changes indicating sustained attention or attention termination, or during periods of time when behavioral ratings indicated the infant was in focused or casual attention. There were longer distraction latencies during attentional engagement as defined by heart rate changes or behavioral ratings than for periods of inattention. Infants had the longest distraction latencies when heart rate and behavior measures were congruent with respect to attention engagement (heart rate deceleration and focused attention). Conversely, latencies were shortest for congruent values of inattention (heart rate acceleration and casual attention). Infant information processing may be greatest when a heart rate deceleration occurs simultaneously with an episode of focused attention.
在本研究中，我们考察了心率及注意力的行为指标对6个月、9个月和12个月大婴儿注意力分散度的影响。向婴儿展示一个玩具，当他们关注该玩具时呈现一个干扰物。干扰物在表明持续注意力或注意力终止的心率变化期间呈现，或者在行为评分显示婴儿处于专注或随意注意力的时间段内呈现。与注意力不集中的时间段相比，由心率变化或行为评分所定义的注意力参与期间的注意力分散潜伏期更长。当心率和行为指标在注意力参与方面一致时（心率减速和专注注意力），婴儿的注意力分散潜伏期最长。相反，注意力不集中的一致值（心率加速和随意注意力）对应的潜伏期最短。当心率减速与专注注意力发作同时发生时，婴儿的信息处理能力可能最强。
