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Topographic mapping of EEG and evoked potentials in psychiatry: Delusions, illusions, and realities

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Summary

This paper reviews the utility of topographic mapping of EEG and evoked potentials in psychiatry. Further, a wide variety of caveats related to this technique are reviewed including cerebral and extracerebral sources of artifact. Moreover, both questionable and legitimate uses of mapping in psychiatry are addressed and possible future applications of this technique are considered. Finally, multidisciplinary approaches to the study of the brain are discussed.

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References

  • Ahn, H., Pricep, L., John, E.R., Baird, H., Trepetin, M. and Kaye, H. Development equations reflect brain dysfunctions. Science. 1980, 210:1259–1262.

    PubMed  Google Scholar 

  • American Electroencephalographic Society: Syllabus for Clinical EEG. J. Clinical Neurophysiol. 1984, 1:335–347.

    Google Scholar 

  • American Electroencephalographic Society. Statement on the clinical use of quantitative EEG. J. Clin. Neurophysiol. 1987, 4:75.

    Google Scholar 

  • American Psychiatric Association, Committee on Nomenclature and Statistics. Diagnostic and Statistical Manual of Mental Disorders Revised (ed 4). Washington DC: American Psychiatric Association; 1987.

    Google Scholar 

  • Anderer, P., Saletu, B., Kinsperger, K. and Semlitsch, H. Topographic brain mapping of EEG in neuropsychopharmacology—Part I. Methodological aspects. Meth. and Find. Exptl. Clin. Pharmacol. 1987, 9:371.

    Google Scholar 

  • Andersson, and Anderson, P. Thalamic origin of cortical rythmical activity. In: Reymond, A. (Ed.), Handbook of EEG Clinical Neurophysiology vol. 2C Elsevier, Amsterdam, 1974: 90–118.

    Google Scholar 

  • Andreasen, N.C. Brain imaging: Applications in Psychiatry. Science. 1988, 239:1381–1388.

    PubMed  Google Scholar 

  • Ashton, H., Golding, V.R., Thompson, J.W., Hassanyeh, F. and Tyrer, S.P. Cortical evoked potentials and clinical rating scales as measures of depressive illness. Psychol. Med. 1988, 18:305–317.

    PubMed  Google Scholar 

  • Barlow, J.S. and Redmond, A. Eye-movement artifact nulling in EEGs by multichannel on-line EOG subtraction. Electroenceph. Clin. Neurophysiol. 1981,52:418.

    PubMed  Google Scholar 

  • Begleiter, H., Porjesz, B., Behari, B. and Kissen, B. Event-related brain potentials in boys at risk for alcoholism. Science, 1984, 225:1493–1496.

    PubMed  Google Scholar 

  • Buchsbaum, M.S. Brain imaging (editorial). Biol. Psychiat. 1982a, 10:1057–1058.

    Google Scholar 

  • Buchsbaum, M.S., Rigal, F., Coppola, R., Capaletti, J., King, C. and Johnson, J. A new system for gray level surface distribution maps of electrical activity. Electroenceph. Clin. Neurophysiol. 1982b, 53:237–242.

    PubMed  Google Scholar 

  • Buchsbaum, M.S. and Haier, R.J. Psychopathology: Biological Approaches. Ann. Rev. Psychol. 1983, 34:401–430.

    Google Scholar 

  • Buchsbaum, M.S., Hazlett, L.E., Sicotte, N., Stein, M., Wu, J. and Zetlin, M. Topographic EEG changes with benzodiazepine administration in generalized anxiety disorder. Biol. Psychiat., 1985, 20: 832–842.

    PubMed  Google Scholar 

  • Callaway, E. Schizophrenia and evoked potentials. In: H Begleiter (Ed.), Evoked brain potentials and behavior. Plenum Press, New York, 1980.

    Google Scholar 

  • Cancro, R. The art of turf creation. Arch. Gen. Psychiat. 1989, 46:191–194.

    Google Scholar 

  • Chiappa, K.H. Progress in topographic mapping of neuropsychiological data: Comments, In: F.H. Duffy (Ed.), Topographic Mapping of Brain Electrical Activity. Butterworth Publishers, Boston, MA, 1985.

    Google Scholar 

  • Coburn, K.L. and Moreno, M.A. Facts and artifacts in brain electrical activity mapping. Brain Topography. 1988, 1:37.

    PubMed  Google Scholar 

  • Coffman, J.A. and Torello, M.W. Event-related brain potentials in depressed patients treated with electroconvulsive therapy. In: Maurer K. (Ed.), Topographic Brain Mapping of EEG and Evoked Potentials. Springer Verlag, 1989.

  • Coles, M.G.H., Donchin, E. and Porges, S.W. Psychophysiology: Systems, Processes and Applications. The Guilford Press, New York, NY, 1986.

    Google Scholar 

  • Coppola, R. and Herrmann, W.M. Psychotropic drug profiles: Comparison by topographic maps of absolute power. Neuropsychobiology. 1987,18: 97–104.

    PubMed  Google Scholar 

  • Dawson, G.D. A summation technique for detecting small signals in a large irregular background. J. Physiol. 1951, 115: 2–10.

    Google Scholar 

  • Donchin, E. Surprise!⋯Surprise? Psychophysiology, 1981, 18:493–515.

    PubMed  Google Scholar 

  • Duffy, F.H., Burchfiel, J.L., and Lombroso, C.T. Brain Electrical Activity Mapping (BEAM): A method for extending the clinical utility of EEG and evoked potential data. Ann. Neurol., 1979, 5: No. 4, 309.

    PubMed  Google Scholar 

  • Duffy, F.H., Denckla, M.B., Bartels, P.H., Sandini, G. and Keissling, L. Dyslexia: automated diagnosis by computerized classification of brain electrical activity. Ann. Neurol. 1980, 7:421.

    PubMed  Google Scholar 

  • Duffy, F.H., Denckla, M.B., Bartels, P.H., Sandini, G. and Keissling, L. Regional differences in brain electrical activity by topographic mapping. Ann. Neurol. 1980, 7:412.

    PubMed  Google Scholar 

  • Duffy, F.H., Bartels, P.H. and Burchfiel, J.L. Significance probability mapping: An aid in the topographic analysis of brain electrical activity. Electroenceph. Clin. Neurophysiol. 1981, 51:455–462.

    PubMed  Google Scholar 

  • Duffy, F.H., Albert, M.S. and McAnulty, G. Brain electrical activity in patients with pre-senile and senile dementia of the alzheimers type. Ann. Neurol. 1984a, 16:439–448.

    PubMed  Google Scholar 

  • Duffy, F.H., Albert, M.S., McAnulty, G. and Garvey, A.J. Age related differences in brain electrical activity of healthy subjects. Ann. Neurol. 1984b, 16:430–438.

    PubMed  Google Scholar 

  • Duffy, F.H. Brain electrical activity mapping: Issues and answers, In: F.H. Duffy (Ed.) Topographic Mapping of Brain Electrical Activity, Butterworth Publishers, Boston, MA, 1985a.

    Google Scholar 

  • Duffy, F.H. and Geschwind, N. Dyslexia: A Neuroscientific Approach to Clinical Evaluation. Boston/Toronto: Little, Brown and Company,1985b.

    Google Scholar 

  • Elbert, T., Lutzenberger, W., Rockstroth, B. and Birbaumer, N. Removal of ocular artifacts from the EEG—a biophysical approach to the EOG. Electroenceph. Clin. Neurophysiol. 1985, 60:455.

    PubMed  Google Scholar 

  • Endicott, J. and Spitzer, A.L. A diagnostic interview: Schedule for Affective Disorders and Schizophrenia. Arch. Gen. Psychiat., 1978, 35: 837.

    PubMed  Google Scholar 

  • Faux, S.F., McCarley, R.W., Torello, M.W., Shenton, M.E. and Duffy, F.H. P300 in schizophrenia: differentiation of schizophrenics and normal controls is enhanced by the Goodin subtraction procedure., Inter. J. Neurosci., 1988a, 39: 117.

    Google Scholar 

  • Faux, S.F., Torello, M.W., McCarley, R.W., Shenton, M.E. and Duffy, F.H. P300 topographic alterations in schizophrenia: a replication study. Electroenceph. Clin. Neurophysiol., 1988b, supplement 40: 688.

    Google Scholar 

  • Faux, S.F., Torello, M.W., McCarley, R.W., Shenton, M.E. and Duffy, F.H. P300 in schizophrenia: Confirmation and statistical validation of temporal region deficit in P300 topography. Biol. Psychiat., 1988c, 23: 776–790.

    PubMed  Google Scholar 

  • Feighner, J.P., Robins, E., Guze, S., Woodruff, R.A., Winokur, G. and Moruz, R. Diagnostic criteria for use in psychiatric research. Arch. Gen. Psychiat., 1972, 26: 57.

    PubMed  Google Scholar 

  • Finley, W.W., Faux, S.F., Hutchinson, J. and Amstutz, L. Long latency event-related potentials in the evaluation of cognitive function in children. Neurology. 1985, 35: 323–327.

    PubMed  Google Scholar 

  • Ford, R.G. A practical guide to EEG recording technique. Am. J. EEG Tech. 1981, 21:79–101.

    Google Scholar 

  • Galaburda, A.M. and Sanides, F. Cytoarchitectonic organization of the human auditory cortex, J. Comp. Neurol., 1980, 190: 597.

    PubMed  Google Scholar 

  • Galambos, R. and Hilliard, S.A. Electrophysiological approaches to human cognitive processing. Neurosciences Research Program Bulletin. 1981, 20:141–265.

    PubMed  Google Scholar 

  • Gasser, R., Sroka, L. and Mocks, J. The correction of EOG artifacts by frequency dependent and frequency independent methods. Psychophysiology. 1986, 23:704.

    PubMed  Google Scholar 

  • Gevins, A.S., Yeager, C.L., Zetlin, G.M., Ancoli, S. and Dedon, M.F. A new method for off-line removal of ocular artifacts. Electroenceph. Clin. Neurophysiol. 1977, 42: 267.

    PubMed  Google Scholar 

  • Gibbs, F.A., Davis, H. and Lennox, W.G. The EEG in epilepsy and in conditions of impaired consciousness. Arch. Neurol. and Psychiat., 1935, 34: 1133–1135.

    Google Scholar 

  • Gloor, P. Hans Berger on the Electroencephalogram of Man. Electroenceph. Clin. Neurophysiol. 1969, Suppl. 28, 1–350.

    Google Scholar 

  • Goodin, D.S., Squires, K.C. and Starr, A. Age-related variations in evoked potentials to auditory stimuli in normal human subjects. Electroenceph. Clin. Neurophysiol. 1978, 44:447.

    PubMed  Google Scholar 

  • Goodin, D.S., Squires, K.C. and Starr, A. Long latency event-related components of the auditory evoked potential in dementia. Brain. 1978, 101:635.

    PubMed  Google Scholar 

  • Goodin, D.S., Starr, A., Chippendale, T. and Squires, K.C. Sequential changes in the P3 component of the auditory evoked potential in confusional states and dementing illnesses. Neurology. 1983, 33:1215.

    PubMed  Google Scholar 

  • Halgren, E., Squires, N.K., Wilson, C.L., Rohrbaugh, J.W., Babb, T.L. and Crandall, P.H. Endogenous potentials generated in the human hippocampal formation and amygdala by infrequent events. Science. 1980, 210:803.

    PubMed  Google Scholar 

  • Halliday, R., Callaway, E. and Rosenthal, J.H. The visual ERP predicts clinical response to methylphenidate in hyperactive children. Psychophysiology. 1984, 21:114.

    PubMed  Google Scholar 

  • Hammond, E.J., Meter, K.J., Aung-Din, R. and Wilder, B.J. Cholinergic modulation of human P3 event-related potentials. Neurology. 1987, 37: 346–350.

    PubMed  Google Scholar 

  • Harner, R.N. Clinical Application of Computed EEG Topography. In: F.H. Duffy (Ed.), Topographic Mapping of Brain Electrical Activity, Butterworth Publishers, Boston, MA, 1986.

    Google Scholar 

  • Hillyard, S.A. and Kutas, M. Electrophysiology of cognitive processing. Ann. Rev. Physiol. 1983, 34:33.

    Google Scholar 

  • Hjorth, B. Source derivation simplifies topographical EEG interpretation. Am. J. EEG Tech., 1980, 20: 121–132.

    Google Scholar 

  • Homan, R.W., Herman, J. and Purdy, P. Cerebral location of international 10–20 electrode placement. Electroenceph. Clin. Neurophysiol. 1987, 66:376–382.

    PubMed  Google Scholar 

  • Hughes, J.R. and Wilson, W.P. EEG and Evoked Potentials in Psychiatry and Behavioral Neurology, Butterworth Publishers, Boston, MA1983.

    Google Scholar 

  • Jasper, H.H. The ten-twenty electrode system of the International Federation. Electroenceph. Clin. Neurophysiol. 1958, 10: 371.

    Google Scholar 

  • Jervis, B.W., Nichols, M.J., Allen, E.M., Hudson, N.R. and Johnson, T.E. The assessment of two methods for removing eye movement artifact from the EEG. Electroenceph. Clin. Neurophysiol. 1985, 61:440.

    PubMed  Google Scholar 

  • John, E.R., Karmel, B.Z., Corning, W.C., Easton, P., Brown, D., Ahn, H., John, T. and Harmony, T. Neurometrics. Science 1977, 196:1393.

    PubMed  Google Scholar 

  • John, E.R., Ahn, H., Prichep, L., Trepetin, M. Brown, D. and Kaye, H. Developmental equations for the electroencephalogram. Science, 1980, 210: 1255–1258.

    PubMed  Google Scholar 

  • John, E.R., Princhep, L.S., Fridman, J. and Easton, P. Neurometrics: Computer assisted differential diagnosis of brain dysfunctions. Science. 1988, 239:162–169.

    PubMed  Google Scholar 

  • Johnstone, J., Galin, D., Fein, G., Yingling, C.D., Herron, J. and Marcus, M. Regional brain activity in dyslexic and control children during reading tasks: visual probe event-related potentials. Brain and Language. 1984, 21:233.

    PubMed  Google Scholar 

  • Josiassen, R.C., Shagass, C. and Roemer, R.A. Dealing with differential gender and age affects in evoked potential studies of psychopathology. Biol. Psychiat. 1988, 23:612–627.

    PubMed  Google Scholar 

  • Kahn, E.M., Weiner, R.D., Brenner, R.P. and Coppola, R. Topographic maps of brain electrical activity: pitfalls and precautions. Biol. Psychiat. 1988, 23:628–636.

    PubMed  Google Scholar 

  • Karson, C.N., Coppola, R., Morihisa, J.M. and Weinberger, D.R. Computed electroencephalographic activity mapping in schizophrenia: The resting state reconsidered. Arch. Gen. Psychiat. 1987, 44:514–517.

    PubMed  Google Scholar 

  • Karson, C.N., Coppola, R. and Daniel, D.G. Alpha frequency in schizophrenia and association with enlarged cerebral ventricles. Am. J. Psychiat. 1988, 145:861–864.

    PubMed  Google Scholar 

  • Keeney, S. Artifact: Sources and solutions. Am. J. EEG Tech. 1981, 21:147–158.

    Google Scholar 

  • Kutas, M., Petten, C. and Besson, M. Event-related potential asymmetries during the reading of sentences. Electroenceph. Clin. Neurophysiol. 1988, 69:218–233.

    PubMed  Google Scholar 

  • Kutas, M. and Hillyard, S.A. An electrophysiological probe of incidental semantic association. J. Cognit. Neurosci., 1989, 1:38–49.

    Google Scholar 

  • Lee, S. and Buchsbaum, M.S. Topographic mapping of EEG artifacts. Clin. Electroenceph. 1987, 18:61–67.

    Google Scholar 

  • Lehmann, D. and Skrandies, W. Reference-free identification of components of checkerboard-evoked multichannel potential fields. Electroenceph. Clin. Neurophysiol. 1980, 48:609–621.

    PubMed  Google Scholar 

  • Leissner, P., Lindholm, L.E. and Petersen, I. Alpha amplitude dependence on skull thickness as measured by ultrasound technique. Electroenceph. Clin. Neurophysiol. 1970, 29:392–399.

    PubMed  Google Scholar 

  • Mirsky, A.F. Behavioral and psychophysiological markers of disordered attention. Environmental Health Perspectives. 1987, 74:191–199.

    PubMed  Google Scholar 

  • Mirksy, A.F. Neuropsychological manifestations in predictors of HIV disease in vulnerable persons, In: T.P. Bridge et al. Psychological Neuropsychiatric and Substance Abuse Aspects of Aids. Raven Press. 1988.

  • Morihisa, J.M., Duffy, F.H. and Wyatt, R.J. Brain electrical activity mapping (BEAM) in schizophrenic patients. Arch. Gen. Psychiat. 1983, 40: 719–728.

    PubMed  Google Scholar 

  • Morstyn, R., Duffy, F.H. and McCarley, R.W. Altered topography of the EEG spectral content in schizophrenia. Electroenceph. Clin. Neurophysiol. 1983a, 56:263–271.

    PubMed  Google Scholar 

  • Morstyn, R., Duffy, F.H. and McCarley, R.W. Altered P300 topography in schizophrenia. Arch. Gen. Psychiat. 1983b, 40:729–734.

    PubMed  Google Scholar 

  • Nunez, P.L. Electric Fields of the Brain: The Neurophysics of EEG, New York: Oxford University Press, 1981.

    Google Scholar 

  • Nunez, P.L. The brains magnetic field: Some effects of multiple sources on localization methods. Electroenceph. Clin. Neurophysiol. 1986,63:75–82.

    PubMed  Google Scholar 

  • Nuwer, M.R. Quantitative EEG. Arch. Gen. Psychiat. 1987a, 44:840.

    PubMed  Google Scholar 

  • Nuwer, M.R. The centrifical affect in other spatial artifacts of other topographic EEG mapping. J. Clin. Neurophysiol. 1987b, 4:321–326.

    PubMed  Google Scholar 

  • Nuwer, M.R. Quantitative EEG: I. Techniques and problems of frequency analysis and topographic mapping. J. Clin. Neurophysiol. 1988a, No. 1, 5:1–43.

    PubMed  Google Scholar 

  • Nuwer, M.R. Quantitative EEG: II. Frequency analysis and topographic mapping in clinical settings. J. Clin. Neurophysiol. 1988b, 1:45–85.

    Google Scholar 

  • Nuwer, M.R. In Reply. Arch. Gen. Psychiat.1989, 46:191–194.

    Google Scholar 

  • Oken, B.S. Filtering and aliasing of muscle activity in EEG frequency analysis. Electroenceph. Clin. Neurophysiol. 1986a, 64:77.

    PubMed  Google Scholar 

  • Oken, B.S. and Chiappa, K.H. Statistical issues concerning computerized analysis of brain wave topography. Ann. Neurol. 1986b, No.5, 19:493–497.

    Google Scholar 

  • Pfefferbaum, A., Wenegrat, B.G., Ford, J.M., Roth, W.T. and Koppel, B.S. Clinical application of the P300 component of event-related potentials. II. Dementia, depression and schizophrenia. Electroenceph. Clin. Neurophysiol. 1984, 59:104–124.

    PubMed  Google Scholar 

  • Pfurtscheller, G., and Cooper, R. Frequency dependence of the transmission of the EEG from cortex to scalp. Electroenceph. Clin. Neurophysiol. 1975, 38:93–96.

    PubMed  Google Scholar 

  • Pfurtscheller, G. and Lopes da Silva, F.H. Functional Brain Imaging. Hahns Huber Publishers, Lewiston, NY, 1988.

    Google Scholar 

  • Polich, J. Comparison of P300 from a passive tone sequence paradigm and inactive discrimination task. Psychophysiology. 1987, No. 1, 24:41–46.

    Google Scholar 

  • Pollock, V.E., Schneider, L.S., Chui, H.C., Henderson, V., Zemansky, M. and Sloane, R.B. Visual evoked potentials in dementia: A meta-analysis and empirical study of Alzheimer's disease patients. Biol. Psychiat. 1989, 25:1003–1013.

    PubMed  Google Scholar 

  • Pritchard, W.S. Psychophysiology of the P300. Psychol. Bull., 1981, 89:506–540.

    PubMed  Google Scholar 

  • Roy, A. Pseudoseizures: A Psychiatric Perspective. J. Neuropsych. Clin. Neurosci. 1989, 1:69–71.

    Google Scholar 

  • Rutter, M. Prevalence and types of dyslexia. In: A.L. Benton and D. Pearl (Eds.), Dyslexia: An appraisal of current knowledge. Oxford University Press, New York, NY, 1978.

    Google Scholar 

  • Saletu, B., Grunberger, J., Saletu, M., Mader, R. and Karobath, M. The acute drug effect as predictor of therapeutic out-come. Adv. Biol. Paychiat. 1982, 9:67–80.

    Google Scholar 

  • Scherg, M. and VonCramon, D. Evoked dipole source potentials of the human auditory cortex. Electroenceph. Clin. Neurophysiol. 1986, 65:344–360.

    PubMed  Google Scholar 

  • Schwarzkopf, S.B., Chapman, R.M., Jimenez, M., Treglia, L., Cain, C.F., Burdy, J.S. and Nasrallah, H.A. Familiar and sporatic schizophrenia: Visual evoked potential differences. Biol. Psychiat. 1988, 24:828–833.

    PubMed  Google Scholar 

  • Semlitsch, H.V., Anderer, P., Schuster, P. and Otto, P. A solution for reliable and valid reduction of ocular artifacts, applied to the P300 ERP. Psychophysiology. 1986, 23:695–703.

    PubMed  Google Scholar 

  • Shagass, C. Brain potential studies of psychopathology. Compr. Psychiat. 1980, 21:218–225.

    Google Scholar 

  • Shagass, C., Roemer, R.A., Straumenis, J.J. and Josiassen, R.C. Combinations of evoked potential amplitude measurements in relation to psychiatric diagnosis. Biol. Psychiat. 1985, 20:701–702.

    PubMed  Google Scholar 

  • Shearer, D.E., Cowan, N.B., Dustman, R.E. and Lamarsh, J.A. Electrophysiological correlates of gender differences: A review. Am. J. EEG Tech. 1984, 24:95–107.

    Google Scholar 

  • Shinton, M.E., Faux, S.F., McCarley, R.W., Ballinger, R., Coleman, M., Torello, M.W. and Duffy, F.H. Correlation between abnormal auditory P300 topography and positive symptoms in schizophrenia: A preliminary report. Biol. Psychiat. 1989, 25:710–716.

    PubMed  Google Scholar 

  • Shucard, D.W., Cummins, K.R. and McGee, M.G. Event-related brain potentials differentiate normal and disabled readers. Brain and Language. 1984, 21:318–334.

    PubMed  Google Scholar 

  • Small, J.G., Milstein, V., Small, I.F., Miller, M.J., Kellams, J.J. and Corsaro, C.J. Computerized EEG profiles of haloperidol, chlorpromazine, clozapine and placebo in treatment resistant schizophrenia. Clin. Electroenceph. 1987, 18:124–135.

    Google Scholar 

  • Spehlmann, R. Evoked Potential Primer: Visual, Auditory, and Somatosensory Evoked Potentials in Clinical Diagnosis. Butterworth Publishers. 1985.

  • Spitzer, R.L., Endicott, J. and Robins, E. Research Diagnostic Criteria (RDC) for a selected Group of Psychiatric Disorders. New York State Psychiatric Institute, Biometrics Institute, New York, 1977.

    Google Scholar 

  • Squires, N.K, Halgren, E., Wilson, C. and Crandall, P. Human endogenous limbic potentials: Crossmodality and depth/surface comparison in epileptic subjects. In: A.W.K. Gaillard and W. Ritter (Eds.). Advances in Psychology: Tutorials in Event-Related Potential Research: Endogenous Components, vol. 10, p. 217, New York: North Holland, 1983.

    Google Scholar 

  • St. Clair, D., Blackburn, I., Blackwood, D. and Tyrer, G. Measuring the course of Alzheimer's Disease: A Longitudinal study of neuropsychological function and changes in P3 event-related potentials. Brit. J. Psychiat. 1988, 152: 48–54.

    PubMed  Google Scholar 

  • Torello, M.W. and McCarley, R.W. The Use of Topographic Mapping Techniques in Clinical Studies in Psychiatry. In: F.H. Duffy (Ed.), Topographic Mapping of Brain Electrical Activity, Butterworth Publishers, Boston, MA, 1986a.

    Google Scholar 

  • Torello, M.W., Garabis, J.M., Hunter, W.W. and Csuri, C.A. Combinational imaging: structure and function of the brain displayed simultaneously. Proceedings of the Society Magnetic Resonance in Medicine, 1986b.

  • Torello, M.W., Phillips, T., Hunter, W.W. and Csuri, C.A. Combinational imaging: magnetic resonance imaging and EEG displayed simultaneously. J. Clin. Neurophysiol. 1987, 4(3): 274.

    Google Scholar 

  • Torello, M.W., Schwarzkopf, S.B., Vespa, P.M., Olson, S.C., Coffman, J.A., Nasrallah, H.A. and McLaughlin, J. The measurement of the auditory P300 waveform in psychotic out-patients: correlations with clinical symptomotology. Presented at the Society of Biological Psychiatry Annual Meeting, 1988.

  • Tsuang, M.T. Heterogeneity of schizophrenia. Biol. Psychiat. 1975, 10:465–473.

    PubMed  Google Scholar 

  • Tukey, J.W. Exploratory Data Analysis, New York, Addison-Wesley, 1977.

    Google Scholar 

  • Vaughan, Jr. H.G. The neural origins of human event related potentials. Ann. NY Acad. Sci. 1982.

  • Westmoreland, B.F. Normal and benign EEG patterns. Am. J. EEG Tech. 1982, 22:3–31.

    Google Scholar 

  • Wood, C.C., Allison, T., Goff, W.R, Williamson, P.D. and Spencer, D.D. On the neural origin of P300 in man. In: H.H. Kornhuber, L. Deecke (Eds.), Progress in Brain Research, vol.54. Motivation, Motor and Sensory Processes of the Brain, Amsterdam, Elsevier, 1980.

    Google Scholar 

  • Wood, C.C. Application of dipole localization methods to source identification of human evoked potentials. Ann. NY Acad. Sci. 1982.

  • Yingling, C.D. and Hosobuchi, Y. A subcortical correlate of P300 in man. Electroenceph. Clin. Neurophysiol. 1984, 59:72–76.

    PubMed  Google Scholar 

  • Yingling, C.D., Galin, D., Fein, G., Peltzman, D. and Davenport, L. Neurometrics does no detect "pure" dyslexia. Electroencephal. Clin. Neurophysiol. 1986, 63:426–430.

    Google Scholar 

  • Yudofsky, S.C. and Hales, R.E. The Reemergence of Neuropsychiatry: Definition and Direction. J. Neuropsychiat. Clin. Neurosci. 1989,1:1–6.

    Google Scholar 

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This research was supported in part by Grant MH43547-01.

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Torello, M.W. Topographic mapping of EEG and evoked potentials in psychiatry: Delusions, illusions, and realities. Brain Topogr 1, 157–174 (1989). https://doi.org/10.1007/BF01129579

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