IMPAIRMENTS OF MOVEMENT INITIATION AND EXECUTION IN UNILATERAL NEGLECT

Vestibulo-ocular and optokinetic impairments in left unilateral neglect.

Right brain damaged patients affected by left unilateral neglect (N+) typically fail to explore the contralesional space. For the first time, this study investigates the dynamic and spatial features of the horizontal vestibular-ocular response (VOR), the optokinetic response (OKR) and the VOR-OKR interaction in six N+ and in five right brain damaged patients without neglect (N-). No lateral asy...

The contribution of spatial remapping impairments to unilateral visual neglect.

Left visual neglect following right hemisphere damage is a heterogeneous phenomenon, in which several underlying impairments have been identified. Despite recent advances in understanding the neural and cognitive bases of these impairments, current theories of neglect, particularly those that emphasise attentional deficits, do not explain a number of phenomena, including: 'Ipsilesional' neglect...

Assessment of unilateral neglect.

U nilateral neglect (ULN) (or “neglect”) is a common behavioral syndrome in patients following stroke. The reported incidence of ULN varies widely from 10%1 to 82%2 following right-hemisphere stroke and from 15%3 to 65%2 following left-hemisphere stroke. Reasons for the variability in the published rates of occurrence of ULN after stroke include subject selection criteria, lesion site, and the ...

Time and neglect: abnormal temporal dynamics in unilateral spatial neglect.

Temporality enters our immediate experience as passage and becoming: the role time plays in the construction of a world of enduring entities tends to go unnoticed. This paper examines the relation between time and ontology in the context of unilateral neglect, a neuropsychological syndrome in which patients fail to perceive or respond to stimuli in the contralateral hemifield, behaving as if th...

Swan Unilateral Spatial Neglect