The article by Marc O. Ernst and Heinrich H. Bülthoff discusses the mechanisms by which the brain combines and integrates sensory information from different modalities to form a robust percept. They highlight two main strategies: sensory combination, which maximizes information from different modalities, and sensory integration, which reduces variance in the sensory estimate to increase reliability. The authors explain how the brain uses prior knowledge and constraints to resolve ambiguities and make decisions, often following a Maximum Likelihood Estimation (MLE) model. They also discuss the importance of integrating information across modalities, such as vision and touch, to improve the robustness of the percept. The article reviews various studies that support these theories, including experiments on depth perception, object recognition, and cross-modal integration. Additionally, it explores the neural mechanisms underlying sensory integration, such as population coding, and the limitations of optimal integration, such as correlated noise and the correspondence problem. The authors conclude that the brain's ability to combine and integrate sensory information is crucial for forming coherent and reliable percepts.The article by Marc O. Ernst and Heinrich H. Bülthoff discusses the mechanisms by which the brain combines and integrates sensory information from different modalities to form a robust percept. They highlight two main strategies: sensory combination, which maximizes information from different modalities, and sensory integration, which reduces variance in the sensory estimate to increase reliability. The authors explain how the brain uses prior knowledge and constraints to resolve ambiguities and make decisions, often following a Maximum Likelihood Estimation (MLE) model. They also discuss the importance of integrating information across modalities, such as vision and touch, to improve the robustness of the percept. The article reviews various studies that support these theories, including experiments on depth perception, object recognition, and cross-modal integration. Additionally, it explores the neural mechanisms underlying sensory integration, such as population coding, and the limitations of optimal integration, such as correlated noise and the correspondence problem. The authors conclude that the brain's ability to combine and integrate sensory information is crucial for forming coherent and reliable percepts.