NoteDetecting directional hypokinesia: The epidiascope technique
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Cited by (43)
Unilateral spatial neglect after posterior parietal damage
2018, Handbook of Clinical NeurologyCitation Excerpt :Line bisection tasks, as target cancellation tasks, performed using the ipsilateral hand, do not readily allow the researcher to tease apart the perceptual input versus the response output components of the ipsilateral error (Vallar and Mancini, 2010). As for target cancellation (Tegnér and Levander, 1991; Nico, 1996), tasks in which the to-be-bisected line is seen by the participant in the ipsilateral half-field (Coslett et al., 1990), or, with the same logic, the direction of the hand movement occur opposite to the movement of the midpoint that is to be set (Bisiach et al., 1990) have been proposed. A variant of the line bisection task, that does not require a motor response, the landmark test (Milner et al., 1993) has also been used with this in mind.
Reperfusion of specific cortical areas is associated with improvement in distinct forms of hemispatial neglect
2012, CortexCitation Excerpt :Neglect can also differ based on the nature of the underlying bias, with a “perceptual-attentional” bias resulting in a failure to detect stimuli on the contralesional side, versus a “motor-intentional” bias that results in a reduction of movements toward the contralesional side (Coslett et al., 1990). Using a novel video apparatus described by Nico (1996), some investigators have isolated the effects of these biases by having subjects perform line bisection and target cancellation in a setup that decoupled visual feedback from the physical workspace (Na et al., 1998). Some patients showed mostly perceptual-attentional bias, some showed mostly motor-intentional bias, and others showed a combination of the two.
Reflecting upon line bisection: Mirror reversal increases the magnitude of pseudoneglect
2010, NeuropsychologiaMonocular patching may induce ipsilateral "where" spatial bias
2009, NeuropsychologiaPerceptual-attentional and motor-intentional bias in near and far space
2008, Brain and Cognition