■新的证据表明,年龄相关性听力损失(ARHL)患者的几种认知控制过程发生了变化。然而,以价值为导向的战略处理,这涉及到有选择地处理基于高价值的显著信息,在ARHL中相对未被探索。我们以前的工作表明,ARHL患者的战略处理行为发生了变化。当前的研究检查了与视觉相关的事件相关的α和θ振荡,19名轻度未治疗ARHL个体和17名年龄和教育程度相当的正常听力对照者的价值导向战略处理任务。
■给出了五个独特的单词列表,其中单词根据字母大小写被分配高或低的值,在任务执行期间记录脑电图(EEG)数据。
■在早期时间段观察到该组的主要作用。具体来说,与对照组相比,ARHL组的θ同步性更大.在稍后的时间点观察到组和值之间的相互作用,在ARHL中,高价值信息与低价值信息的θ同步更大。
■我们的研究结果为振荡变化提供了证据,这些振荡变化与轻度未经治疗的ARHL个体的价值导向战略处理的视觉任务有关。这指出了轻度ARHL个体认知控制中与模态无关的神经生理变化,并增加了有关ARHL认知后果的快速增长的文献。
UNASSIGNED: Emerging evidence suggests changes in several cognitive control processes in individuals with age-related hearing loss (ARHL). However, value-directed strategic processing, which involves selectively processing salient information based on high value, has been relatively unexplored in ARHL. Our previous work has shown behavioral changes in strategic processing in individuals with ARHL. The current study examined event-related alpha and theta oscillations linked to a visual, value-directed strategic processing task in 19 individuals with mild untreated ARHL and 17 normal hearing controls of comparable age and education.
UNASSIGNED: Five unique word lists were presented where words were assigned high- or low-value based on the letter case, and electroencephalography (EEG) data was recorded during task performance.
UNASSIGNED: The main effect of the group was observed in early time periods. Specifically, greater theta synchronization was seen in the ARHL group relative to the control group. Interaction between group and value was observed at later time points, with greater theta synchronization for high- versus low-value information in those with ARHL.
UNASSIGNED: Our findings provide evidence for oscillatory changes tied to a visual task of value-directed strategic processing in individuals with mild untreated ARHL. This points towards modality-independent neurophysiological changes in cognitive control in individuals with mild degrees of ARHL and adds to the rapidly growing literature on the cognitive consequences of ARHL.