?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Differences+in+the+ability+to+process+a+visuo-spatial+task+are+reflected+in+event-related+slow+cortical+potentials+of+human+subjects.&rft.creator=Lamm%2C+Claus&rft.creator=Bauer%2C+Herbert&rft.creator=Vitouch%2C+Oliver&rft.creator=Gst%C3%A4ttner%2C+Reinhard&rft.subject=Behavioral+Neuroscience&rft.subject=Brain+Imaging&rft.subject=Neurophysiology&rft.subject=Physiological+Psychology&rft.description=Recent+Positron+Emission+(PET)+and+EEG+studies+suggest+that+higher+ability+in+a+cognitive+task+is+associated+with+a+more+efficient+neuronal+processing+of+this+task.+However%2C+the+validity+and+generalizability+of+these+studies+is+limited+for+several+reasons.+We+investigated+20+male+and+18+female+human+subjects+with+good+vs.+poor+spatial+ability+performing+a+visuo-spatial+task+(cube+test).+Processing-related+slow+event-related+potentials+were+recorded+via+22+electrodes%2C+evenly+distributed+over+the+scalp.+Significant+differences+between+good+and+poor+performers+were+found+in+both+sexes%3A+Poor+subjects+showed+higher+activity+in+the+parietal+region%2C+and+their+topography+was+more+extended+into+fronto-central+regions.+Since+the+amount+and+topography+of+brain+activity+may+vary+considerably+depending+on+subjects'+ability%2C+we+conclude+that+careful+(experimental)+control+of+task-specific+ability+of+subjects+is+mandatory+for+cognitive+neuroscience+studies.&rft.date=1999-08&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=text%2Fhtml&rft.identifier=http%3A%2F%2Fcogprints.org%2F117%2F1%2Fnsl_finalversion.html&rft.identifier=++Lamm%2C+Claus+and+Bauer%2C+Herbert+and+Vitouch%2C+Oliver+and+Gst%C3%A4ttner%2C+Reinhard++(1999)+Differences+in+the+ability+to+process+a+visuo-spatial+task+are+reflected+in+event-related+slow+cortical+potentials+of+human+subjects.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F117%2F