title: Extra-powerful on the visuo-perceptual space, but variable on the number space: Different effects of optokinetic stimulation in neglect patients.
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.
authors.affiliation: Laboratory of Neuropsychology, IRCCS San Camillo Hospital, Lido-Venice, Italy.
authors.forename: Marco
authors.initials: M
authors.lastname: Pitteri
authors.affiliation: Clinical Neuropsychology Unit and Outpatient Service, Saarland University, Saarbrücken, Germany.|International Research Training Group 1457 "Adaptive Minds", Saarbrücken, Germany.
authors.forename: Georg
authors.initials: G
authors.lastname: Kerkhoff
authors.affiliation: Clinical Neuropsychology Unit, Schön Clinic Bad Aibling, Germany.
authors.forename: Ingo
authors.initials: I
authors.lastname: Keller
authors.affiliation: Laboratory of Neuropsychology, IRCCS San Camillo Hospital, Lido-Venice, Italy.
authors.forename: Francesca
authors.initials: F
authors.lastname: Meneghello
authors.affiliation: Laboratory of Neuropsychology, IRCCS San Camillo Hospital, Lido-Venice, Italy.|Department of General Psychology, University of Padova, Italy.
authors.forename: Konstantinos
authors.initials: K
authors.lastname: Priftis
mesh_terms: D000328:Adult; D000368:Aged; D001288:Attention / Q000502:physiology*; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D017120:Nystagmus, Optokinetic / Q000502:physiology*; D010468:Perceptual Disorders / Q000175:diagnosis / Q000209:etiology*; D010775:Photic Stimulation; D011594:Psychometrics; D013028:Space Perception / Q000502:physiology*; D020521:Stroke / Q000150:complications
keywords: mental number line; neglect; number space; optokinetic stimulation; spatial attention orienting; visual line bisection; visuo-motor processing