We are happy to announce that our paper „Cross-modal congruency modulates evidence accumulation, not decision thresholds“ was published as part of the Research Topic „Crossing Sensory Boundaries: Multisensory Perception Through the Lens of Audition“ in Frontiers in Neuroscience.
In this study, we collaborated with Björn Kampa from the Systems Neurophysiology Department of the Institute of Zoology here at RWTH Aachen University, and Christoph Kayser from the Department of Cognitive Neuroscience at Universität Bielefeld. We explored how audio-visual stimulus pairs—linked either by co-occurrence or by shared meaning—affect behavior and brain activity during decision-making.
By combining behavioral data from a decision-making task with brain activity measured via electroencephalography (EEG), we found two key stages that shape perceptual decisions: an early, sensory-driven stage, and a later, decision-related stage. Interestingly, whether the stimulus pairing was expected in terms of co-occurrence or meaning played a major role in how these early and late components contributed to the decision-making process.
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