This work was supported by grants from the BBSRC and MRC (UK) and the EU.
How to Define an Object: Evidence from the Effects of Action on Perception and Attention
Article first published online: 29 OCT 2007
2007 Blackwell Publishing Ltd
Mind & Language
Volume 22, Issue 5, pages 534–547, November 2007
How to Cite
HUMPHREYS, G. W. and RIDDOCH, M. J. (2007), How to Define an Object: Evidence from the Effects of Action on Perception and Attention. Mind & Language, 22: 534–547. doi: 10.1111/j.1468-0017.2007.00319.x
- Issue published online: 29 OCT 2007
- Article first published online: 29 OCT 2007
Abstract: We present work demonstrating that the nature of an object for our visual system depends on the actions we are programming and on the presence of action relations between stimuli. For example, patients who show visual extinction are more likely to become aware of two objects if the objects fall in appropriate visual locations for a common action. This effect of the action relations between objects is modulated both by the familiarity of the positioning of the objects for action, and by the mere possibility of action (the ‘affordance’) between the objects. In addition, the programming of an action to a part of an object alters the representation of that object, making the ‘part’ into the object selected by the visual system. These results point to object coding being a rather flexible process, affected not only by the perceptual properties of stimuli but also by the relations between these properties and action. We discuss the implications for theories of perception as well as considering why action information, in particular, may be important for perception.