Department of Linguistics, University of Chicago, 1115 E. 58Th Street, Chicago, IL, 60637, USA.
Sci Rep. 2023 Jun 20;13(1):9991. doi: 10.1038/s41598-023-37212-y.
Recent studies have revealed great individual variability in cue weighting, and such variation is shown to be systematic across individuals and linked to differences in some general cognitive mechanism. The present study investigated the role of subcortical encoding as a source of individual variability in cue weighting by focusing on English listeners' frequency following responses to the tense/lax English vowel contrast varying in spectral and durational cues. Listeners differed in early auditory encoding with some encoding the spectral cue more veridically than the durational one, while others exhibited the reverse pattern. These differences in cue encoding further correlate with behavioral variability in cue weighting, suggesting that specificity in cue encoding across individuals modulates how cues are weighted in downstream processes.
最近的研究揭示了线索加权的巨大个体差异，这种差异在个体之间表现出系统性，并与某些一般认知机制的差异有关。本研究通过关注英语听众对在频谱和持续时间线索上变化的紧张/松弛英语元音对比的频率跟随反应，调查了皮质下编码作为线索加权个体差异来源的作用。一些听众在早期听觉编码中更准确地编码了频谱线索，而另一些听众则表现出相反的模式，听众在线索编码方面存在差异。这些线索编码的差异进一步与线索加权的行为变异性相关，表明个体之间的线索编码特异性调节了线索在下游过程中的权重。
