Structural similarity causes different category-effects depending on task characteristics.

@article{Gerlach2001StructuralSC,
  title={Structural similarity causes different category-effects depending on task characteristics.},
  author={Christian Gerlach},
  journal={Neuropsychologia},
  year={2001},
  volume={39 9},
  pages={895-900}
}
It has been suggested that category-specific impairments for natural objects may reflect that natural objects are more globally visually similar than artefacts and therefore more difficult to recognize following brain damage [Aphasiology 13 (1992) 169]. This account has been challenged by the finding that the 'normal' disadvantage claimed for natural objects may be reversed when items from the categories of natural objects and artefacts are matched for visual complexity, familiarity and name… CONTINUE READING