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Cross-modal illusory conjunctions (ICs) happen when, under conditions of divided attention, felt textures are reported as being seen or vice versa. Experiments provided evidence for these errors, demonstrated that ICs are more frequent if tactile and visual stimuli are in the same hemispace, and showed that ICs still occur under forced-choice conditions but do not occur when attention to the felt texture is increased. Cross-modal ICs were also found in a patient with parietal damage even with relatively long presentations of visual stimuli. The data are consistent with there being cross-modal integration of sensory information, with the modality of origin sometimes being misattributed when attention is constrained. The empirical conclusions from the experiments are supported by formal models.

Original publication




Journal article


J Exp Psychol Hum Percept Perform

Publication Date





1243 - 1266


Adult, Analysis of Variance, Attention, Brain Diseases, Form Perception, Functional Laterality, Humans, Illusions, Male, Memory, Models, Psychological, Parietal Lobe, Probability, Touch, United Kingdom, Visual Perception