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When Correlation Implies Causation in Multisensory Integration
DOI:10.1016/j.cub.2011.11.039.png)
摘要
En 中文
Inferring which signals have a common underlying cause, and hence should be integrated, represents a primary challenge for a perceptual system dealing with multiple sensory inputs [1-3]. This challenge is often referred to as the correspondence problem or causal inference. Previous research has demonstrated that spatiotemporal cues, along with prior knowledge, are exploited by the human brain to solve this problem [4-9]. Here we explore the role of correlation between the fine temporal structure of auditory and visual signals in causal inference. Specifically, we investigated whether correlated signals are inferred to originate from the same distal event and hence are integrated optimally [10]. In a localization task with visual, auditory, and combined audiovisual targets, the improvement in precision for combined relative to unimodal targets was statistically optimal only when audiovisual signals were correlated. This result demonstrates that humans use the similarity in the temporal structure of multisensory signals to solve the correspondence problem, hence inferring causation from correlation.
Keyword:
PERCEPTION
BINDING
VISION
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期刊
IF:
7.5
论文数:
2.2W
被引数:
7.8W
机构
引用论文
The ventriloquist effect results from near-optimal bimodal integration接近最佳双峰积分的口技效果
CURRENT BIOLOGY
IF7.5
Humans integrate visual and haptic information in a statistically optimal fashion人类以统计上最佳的方式整合视觉和触觉信息
NATURE
IF48.5

