自举(财务)
心理学
脑电图
安全性令牌
认知心理学
可视化快速呈现
语音识别
认知
沟通
人工智能
计算机科学
神经科学
计算机安全
经济
金融经济学
作者
Mara De Rosa,Maria Ktori,Yamil Vidal,Roberto Bottini,Davide Crepaldi
出处
期刊:Cortex
[Elsevier]
日期:2022-03-01
卷期号:148: 193-203
被引量:11
标识
DOI:10.1016/j.cortex.2022.01.005
摘要
Humans capitalize on statistical cues to discriminate fundamental units of information within complex streams of sensory input. We sought neural evidence for this phenomenon by combining fast periodic visual stimulation (FPVS) and EEG recordings. Skilled readers were exposed to sequences of linguistic items with decreasing familiarity, presented at a fast rate and periodically interleaved with oddballs. Crucially, each sequence comprised stimuli of the same category, and the only distinction between base and oddball items was the frequency of occurrence of individual tokens within a stream. Frequency-domain analyses revealed robust neural responses at the oddball presentation rate in all conditions, reflecting the discrimination between two locally-emerged groups of items purely informed by token frequency. Results provide evidence for a fundamental frequency-tuned mechanism that operates under high temporal constraints and could underpin category bootstrapping. Concurrently, they showcase the potential of FPVS for providing a direct neural measure of implicit statistical learning.
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