ABSTRACT
The discussions throughout this book foreground evidence on spatial coding in touch. There is no intention, and no danger, of losing sight (sic) of the fact that vision is the major spatial modality for humans, as it is for other primates. One can think of dozens of good biological reasons why that should be so. It is easy to cite the need to explore the environment for food and shelter and for cues that guide locomotion, anticipate obstacles, and, in the case of bipeds like us, help to achieve an upright posture. Nevertheless, as noted earlier, there is sufficient evidence to reject the extreme notion that vision is necessary for spatial performance, let alone that spatial processing can be equated with vision.
