?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Time-Frequency+Analysis+Reveals+Multiple+Functional+Components+During+Oddball+P300&rft.creator=Kolev%2C+Vasil&rft.creator=Demiralp%2C+Tamer&rft.creator=Yordanova%2C+Juliana&rft.creator=Ademoglu%2C+Ahmet&rft.creator=Isoglu-Alka%C3%A7%2C+%C3%9Cmm%C3%BChan&rft.subject=Behavioral+Neuroscience&rft.subject=Computational+Neuroscience&rft.subject=Neurophysiology&rft.subject=Physiological+Psychology&rft.subject=Psychobiology&rft.description=A+time-frequency+decomposition+was+applied+to+rare+target+and+frequent+non-target+event-related+potentials+(ERPs)+elicited+in+an+oddball+condition+to+assess+whether+multiple+functional+components+occur+in+the+P300+latency+range.+The+wavelet+transform+(WT)+was+used+because+it+allows+capture+of+simultaneous+or+partly+overlapping+components+in+ERPs+without+loosing+their+temporal+relationships.+The+application+of+a+four-octave+quadratic+B-spline+wavelet+transform+at+the+level+of+single-sweep+data+allowed+us+to+obtain+new+information+and+revealed+the+presence+of+separate+events+during+P300+development.+Several+delta%2C+theta%2C+and+alpha+frequency+components+in+the+P300+latency+range+differed+between+target+and+non-target+processing.+These+findings+indicate+that+P300+is+composed+of+multiple+functional+components+and+that+the+WT+method+is+of+use+for+the+study+of+P300+functional+correlates+more+precisely.&rft.date=1997-05&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=text%2Fhtml&rft.identifier=http%3A%2F%2Fcogprints.org%2F48%2F1%2Fwavelet.htm&rft.identifier=++Kolev%2C+Vasil+and+Demiralp%2C+Tamer+and+Yordanova%2C+Juliana+and+Ademoglu%2C+Ahmet+and+Isoglu-Alka%C3%A7%2C+%C3%9Cmm%C3%BChan++(1997)+Time-Frequency+Analysis+Reveals+Multiple+Functional+Components+During+Oddball+P300.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F48%2F