Chapter 6: Peripersonal Space Representation in Humans: Proprieties, Functions, and Plasticity
Elisabetta Làdavas & Andrea Serino
Peripersonal space representation in humans: Proprieties, functions, and plasticity The taxonomy of space representation includes at least three main sectors: personal (that is, the space defined by the body surface), peripersonal (the space just surrounding the body) and extrapersonal space (the space far from the body). The strongest support for the distinction between peripersonal and extrapersonal space was provided by neurophysiological studies in monkeys. Rizzolatti and colleagues (1981; 1983; 1997) used the term “peripersonal” to define a limited sector of space around an animal's body-part whose spatial boundaries are operationally defined by variations in the neuronal firing rate that mainly depends upon the relation of proximity between a visual stimulus and a given body-part. This space appears to be implemented by multisensory neurons within the putamen, parietal and premotor areas (Bremmer et al., 2001; Duhamel et al., 1998; Graziano and Gross, 1993; Graziano et al., 1997; Rizzolatti et al., 1998;) ...