Encoding the identity and location of objects in human LOC.
We are able to recognize objects independent of their location in the visual field. At the same time, we also keep track of the location of objects to orient ourselves and to interact with the environment. The lateral occipital complex (LOC) has been suggested as the prime cortical region for representation of object identity. However, the extent to which LOC also represents object location has remained debated. In this study we used high-resolution fMRI in combination with multivoxel pattern classification to investigate the cortical encoding of three object exemplars from four different categories presented in two different locations. This approach allowed us to study location-tolerant object information and object-tolerant location information in LOC, both at the level of categories and exemplars. We found evidence for both location-tolerant object information and object-tolerant location information in LOC at the level of categories and exemplars. Our results further highlight the mixing of identity and location information in the ventral visual pathway.
Cichy
Radoslaw Martin
RM
Bernstein Center for Computational Neuroscience Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany. rmcichy@gmail.com
Chen
Yi
Y
Haynes
John-Dylan
JD
D000328:Adult; D005260:Female; D005556:Form Perception / Q000502:physiology*; D005793:Generalization, Psychological; D006801:Humans; D007091:Image Processing, Computer-Assisted; D016014:Linear Models; D008279:Magnetic Resonance Imaging; D008297:Male; D009778:Occipital Lobe / Q000502:physiology*; D010775:Photic Stimulation; D013028:Space Perception / Q000502:physiology*; D014795:Visual Pathways / Q000502:physiology; D055815:Young Adult