Key Alexandra P, Gustafson Samantha J, Rentmeester Lindsey, Hornsby Benjamin W Y, Bess Fred H
Department of Hearing and Speech Sciences, Vanderbilt Bill Wilkerson Center, Vanderbilt University School of Medicine, Nashville, TNVanderbilt Kennedy Center for Research on Human Development, Nashville, TN.
Department of Hearing and Speech Sciences, Vanderbilt Bill Wilkerson Center, Vanderbilt University School of Medicine, Nashville, TN.
J Speech Lang Hear Res. 2017 Jul 12;60(7):2090-2104. doi: 10.1044/2016_JSLHR-H-16-0052.
Fatigue related to speech processing is an understudied area that may have significant negative effects, especially in children who spend the majority of their school days listening to classroom instruction.
This study examined the feasibility of using auditory P300 responses and behavioral indices (lapses of attention and self-report) to measure fatigue resulting from sustained listening demands in 27 children (M = 9.28 years).
Consistent with predictions, increased lapses of attention, longer reaction times, reduced P300 amplitudes to infrequent target stimuli, and self-report of greater fatigue were observed after the completion of a series of demanding listening tasks compared with the baseline values. The event-related potential responses correlated with the behavioral measures of performance.
These findings suggest that neural and behavioral responses indexing attention and processing resources show promise as effective markers of fatigue in children.
与言语加工相关的疲劳是一个研究不足的领域,可能会产生重大负面影响,尤其是对于那些在学校大部分时间都在听课堂讲授的儿童。
本研究检验了使用听觉P300反应和行为指标(注意力不集中和自我报告)来测量27名儿童(平均年龄9.28岁)因持续听力需求而产生的疲劳的可行性。
与预测一致,与基线值相比,在完成一系列高要求的听力任务后,观察到注意力不集中增加、反应时间延长、对罕见目标刺激的P300波幅降低以及自我报告的疲劳感增强。事件相关电位反应与行为表现指标相关。
这些发现表明,指示注意力和加工资源的神经和行为反应有望成为儿童疲劳的有效指标。