6533b824fe1ef96bd127fe46
RESEARCH PRODUCT
Cortical and subcortical visual event-related potentials to oddball stimuli in rabbits
V. La BuaEdoardo BisiachBrigida FierroMassimiliano OliveriAurelio PiazzaD. BuffaFilippo Brighinasubject
medicine.medical_specialtyVisual perceptiongenetic structuresPhotic Stimulationmusculoskeletal neural and ocular physiologyGeneral Neurosciencemedicine.medical_treatmentmedia_common.quotation_subjectHealthy subjectsPosterior parietal cortexStimulus (physiology)Audiologybehavioral disciplines and activitiesNeglectTranscranial magnetic stimulationnervous systemLateralitymedicinePsychologyNeurosciencepsychological phenomena and processesmedia_commondescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2000-05-01 | NeuroReport |