Object-based inhibition of return in patients with posterior parietal damage

AB Vivas, Glyn Humphreys, LJ Fuentes

Research output: Contribution to journalArticle

9 Citations (Scopus)


Recent evidence has shown that inhibition of return, IOR, is impaired in patients with parietal damage with or without clinical signs of neglect (Bartolomeo, Sieroff, Decaix, & Chokron, 2001; Vivas, Humphreys, & Fuentes, 2003, respectively). In addition to environment-based IOR, Tipper et al. (1991) showed that IOR could be also associated with dynamic, object-based representations. In our study, we examined four patients with unilateral lesions to the parietal lobe, and a group of healthy controls, in an IOR procedure with moving objects where a pre-cued object could move, clockwise or counterclockwise, 90 degrees in polar coordinates. The group of control participants showed a small but significant object-based IOR effect. In contrast, the patients showed an object-based IOR effect when the objects moved from the contralesional field toward the ipsilesional field, whereas there was no IOR effect when they moved from the ipsilesional to the contralesional field. These findings are discussed in terms of the role of the parietal cortex in implementing attentional biases in both environment-based (Vivas et al., 2003) and object-based frames of reference.
Original languageEnglish
Pages (from-to)169-176
Number of pages8
Issue number2
Publication statusPublished - 1 Jan 2008


  • visuospatial attention
  • inhibition
  • parietal lobe
  • saliency map


Dive into the research topics of 'Object-based inhibition of return in patients with posterior parietal damage'. Together they form a unique fingerprint.

Cite this