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Neuropsychological and brain imaging studies have shown that the identification and use of tools mainly involve areas of the left hemisphere. We investigate whether this dominance can be observed in a behavioral visual half-field (VHF) task as well. To make sure that the VHF-effect was due to laterality and not due to attentional bias, we made use of two tasks: tool recognition and object recognition. On the basis of the existing literature, we predicted a right visual field (RVF) advantage for tool recognition, but not for object recognition. Twenty right-handed participants made judgments about whether one of two bilaterally presented stimuli was an object/non-object or a tool/non-tool. No VHF/hemisphere advantage was found for object recognition, whereas a significant RVF/left hemisphere advantage was observed for tool recognition. These findings show that VHF-tasks can be used as a valid laterality measure of …