Nakagawa Atsuko, Sukigara Masune
Nagoya City University, Japan.
Nagoya City University, Japan.
Infant Behav Dev. 2019 May;55:38-45. doi: 10.1016/j.infbeh.2019.02.004. Epub 2019 Mar 8.
Attention development is a critical foundation for cognitive abilities. This study examines the relationship between phasic aspects of alertness and disengagement in infants, using the overlap paradigm. Research shows that visual disengagement in overlap condition is modulated by auditory cues in 6-year-olds. Our participants were aged 6 months (N = 20), 12 months (N = 27), and 24 months (N = 14). Phasic alertness during overlap and no-overlap tasks was manipulated using a spatially nondirective warning signal shortly before onset of the peripheral target. Responses in overlap condition were slower and fewer than in no-overlap condition. The signal showed a tendency to reduce latencies in both overlap and no-overlap conditions. While our hypothesis that the warning signal might be more effective in younger infants was not supported, we confirmed the association reported in previous studies between temperamental soothability and disengagement latencies in infancy.
注意力发展是认知能力的关键基础。本研究使用重叠范式，考察婴儿警觉性的阶段性方面与注意力分散之间的关系。研究表明，6岁儿童在重叠条件下的视觉注意力分散受听觉线索调节。我们的参与者年龄分别为6个月（N = 20）、12个月（N = 27）和24个月（N = 14）。在周边目标出现前不久，使用空间非定向警告信号来操控重叠任务和非重叠任务期间的阶段性警觉性。重叠条件下的反应比非重叠条件下更慢且更少。该信号显示出在重叠和非重叠条件下均有缩短潜伏期的趋势。虽然我们关于警告信号可能在较小婴儿中更有效的假设未得到支持，但我们证实了先前研究中报道的婴儿气质性易安抚性与注意力分散潜伏期之间的关联。
