?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Development+and+topography+of+auditory+event-related+potentials+(ERPs)%3A+Mismatch+and+processing+negativity+in+individuals+8-22+years+of+age&rft.creator=OADES%2C+Robert+D.&rft.creator=DITTMANN-BALCAR%2C+Alexandra&rft.creator=ZERBIN%2C+Dieter&rft.subject=Developmental+Psychology&rft.subject=Neurophysiology&rft.subject=Psychophysics&rft.description=Introduction%3A+How+do+ERPs+reflecting+auditory+information+processing+develop+across+adolescence%3F+This+development+is+described+for+the+amplitude+and+latency+of+five+ERP+components+and+four+difference-waves+in+four+groups+of+11+healthy+subjects+with+mean+ages+of+10%2C+14%2C+17+%26+21+years.+%0A%0AMethods%3A+Vector+normalised+data+were+recorded+from+19+sites+during+diffuse+and+focused+attention+in+a+three-tone+oddball.+(i.e.+in+passive%2C+diffuse-attention+and+active%2C+focussed-attention%2C+discrimination+conditions)+to+see+how+ERP+loci+varied+with+age+for+tone-type%2C+attention-condition+and+for+four+types+of+difference-wave+reflecting+nontarget+and+target+comparisons%3A+(mismatch+negativity%2C+MMN%2C+an+auditory+working+memory+trace%3B+Negative+difference%2C+Nd%2C+an+attentional+trace%2C+but+also+Processing+Negativity%2C+PN+and+the+Goodin-waveform).+%0A%0AResults%3A+Age+interacted+with+site+for+most+components.+P1+loci+sensitive+to+rare+tones+moved+posteriorly+and+N1+loci+lost+their+right+bias+at+early+puberty.+But+P2+loci+did+not+move+anterior+to+Cz+until+adulthood.+N2+amplitude%2C+sensitive+to+attention+condition%2C+developed+a+mature+frontal+focus+by+17+years.+Right-biased+P3+loci+move+to+the+midline+with+focused+attention+in+young+and+old+alike.+%0A%0ADifference-waves+reflected+three+developmental+stages+(figure+2)%3A+In+10+year-olds+early+deflections+(%3C150+ms)+were+diffusely+distributed%3B+in+mid-adolescence+the+main+frontal+negative+component+(150-300+ms)+became+well-formed+and+lost+an+earlier+right+bias%3B+over+17+years+the+late+positive+complex+developed+a+right+bias+in+target-derived+waves.+Latency+decreases+for+early+frontal+components+were+marked+in+10-14y+olds+and+for+later+posterior+components+in+14-17y+olds.+MMN+topography+matured+(from+a+right+lateral+to+bilateral+distribution)+between+10+and+14+y%2C+while+Nd+topography+matured+and+became+bilateral+between+14+and+17y.+%0A%0AConclusions%3A+Major+developments+of+brain+function+appear+at+the+onset+of+adolescence+(%3C14y)+in+early+stimulus-selection+processes+and+during+adolescence+in+the+differential+use+of+this+information+(N2-+and+P3-like+latencies.+%0A&rft.publisher=SPR&rft.date=1997&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F1144%2F2%2Fpsychophysio.97.pdf&rft.identifier=++OADES%2C+Robert+D.+and+DITTMANN-BALCAR%2C+Alexandra+and+ZERBIN%2C+Dieter++(1997)+Development+and+topography+of+auditory+event-related+potentials+(ERPs)%3A+Mismatch+and+processing+negativity+in+individuals+8-22+years+of+age.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F1144%2F