2018 CSBBCS / CPA CJEP Best Article Award Winner: Dr. Heath Matheson
Matheson, H. E., Salmon, J. P., Tougas, M., & McMullen, P. A. (2018). Embodied object concepts: The contribution of structural and functional manipulability depends on available visual information. Canadian Journal of Experimental Psychology/Revue canadienne de psychologie expérimentale, 72(4), 229 - 243. doi:10.1037/cep0000147
Object identification is driven, in part, by the extent to which we have sensorimotor experience with the object. Importantly, the activation of embodied object representations depends on contextual information. In the present study, we use a visual masking paradigm to investigate how the availability of visual information modulates the role of manipulability in the representation of object concepts. Using both an object naming task (i.e., linguistic response) and a picture-word matching task (i.e., manual response), we provide evidence that structural manipulability (the ability to pick up an object with one hand) and functional manipulability (the action information that pertains to the ultimate use of the object) have dissociable effects on object identification. In both tasks, the effects of structural manipulability were greater when structural information was available in the image (i.e., when the objects were unmasked); in contrast, the effects of functional manipulability were greater when the objects were masked. Importantly, these effects were not due to object familiarity or the age at which the name of the objects was acquired. Our results are consistent with the activation of the two pathways within the dorsal visual stream that are part of a distributed neural network that represents embodied action information. We extend previous research by showing that visual information determines which type of embodied information drives object identification.