TASK SPECIFIC VISUOSPATIAL NEGLECT RELATED TO DENSITY AND SALIENCE OFSTIMULI

We report the case of a male patient with a right parietal tumour. On examination he presented with marked visuospatial neglect and anosogno sia for his deficits. Experimental analysis of his visuospatial neglec t revealed that his ability to identify simple stimuli in the contrala teral to the lesion space was significantly influenced by the degree o f density of stimuli in the ipsilateral space. Similarly his performan ce was found to be affected significantly by the complexity or salienc e of a stimulus in the ipsilateral space. An attempt is made to interp ret these observations in the context of current major theories of neg lect.