We studied the effects of optokinetic stimulation (OKS; leftward, rightward, control) on the visuo-perceptual and number space, in the same sample, during line bisection and mental number interval bisection tasks. To this end, we tested six patients with right-hemisphere damage and neglect, six patients with right-hemisphere damage but without neglect, and six neurologically healthy participants. In patients with neglect, we found a strong effect of leftward OKS on line bisection, but not on mental number interval bisection. We suggest that OKS influences the number space only under specific conditions.

Extra-powerful on the visuo-perceptual space, but variable on the number space: Different effects of optokinetic stimulation in neglect patients

Pitteri, Marco;
2015-01-01

Abstract

We studied the effects of optokinetic stimulation (OKS; leftward, rightward, control) on the visuo-perceptual and number space, in the same sample, during line bisection and mental number interval bisection tasks. To this end, we tested six patients with right-hemisphere damage and neglect, six patients with right-hemisphere damage but without neglect, and six neurologically healthy participants. In patients with neglect, we found a strong effect of leftward OKS on line bisection, but not on mental number interval bisection. We suggest that OKS influences the number space only under specific conditions.
2015
mental number line; neglect; number space; optokinetic stimulation; spatial attention orienting; visual line bisection; visuo-motor processing; Adult; Aged; Attention; Female; Functional Laterality; Humans; Male; Middle Aged; Neuropsychological Tests; Nystagmus, Optokinetic; Perceptual Disorders; Photic Stimulation; Psychometrics; Space Perception; Stroke
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11562/978408
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