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  • Title: Contralateral neglect induced by right posterior parietal rTMS in healthy subjects.
    Author: Fierro B, Brighina F, Oliveri M, Piazza A, La Bua V, Buffa D, Bisiach E.
    Journal: Neuroreport; 2000 May 15; 11(7):1519-21. PubMed ID: 10841369.
    Abstract:
    We applied repetitive transcranial magnetic stimulation (rTMS) in order to induce interference on visuo-spatial perception in 11 healthy subjects. Subjects performed a visuo-spatial task requiring judgements about the symmetry of prebisected lines. Visual stimuli consisted of symmetrically or asymmetrically transected lines, tachystoscopically presented for 50 ms on a computer-monitor. Performance was examined in basal condition and during rTMS trains of 10 stimuli at 25 Hz, delivered through a focal coil over right or left posterior parietal cortex (P5 and P6 sites) and triggered synchronously with visual stimulus. Randomly intermixed sham rTMS trains were employed to control for non-specific effects. Right parietal rTMS induced a significant rightward bias in symmetry judgements as compared with basal and sham rTMS conditions. No differences emerged between other conditions.
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