Jürgen Kayser

Summary

Affiliation: Columbia University
Country: USA

Publications

  1. pmc Neuronal generator patterns of olfactory event-related brain potentials in schizophrenia
    Jürgen Kayser
    Division of Cognitive Neuroscience, New York State Psychiatric Institute, New York, New York 10032, USA
    Psychophysiology 47:1075-86. 2010
  2. ncbi request reprint Principal components analysis of Laplacian waveforms as a generic method for identifying ERP generator patterns: I. Evaluation with auditory oddball tasks
    Jürgen Kayser
    Department of Biopsychology, New York State Psychiatric Institute, New York, NY 10032, USA
    Clin Neurophysiol 117:348-68. 2006
  3. ncbi request reprint ERP/CSD indices of impaired verbal working memory subprocesses in schizophrenia
    Jürgen Kayser
    Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, New York, USA
    Psychophysiology 43:237-52. 2006
  4. ncbi request reprint Optimizing PCA methodology for ERP component identification and measurement: theoretical rationale and empirical evaluation
    Jürgen Kayser
    Department of Biopsychology, New York State Psychiatric Institute, Box 50, 1051 Riverside Drive, New York, NY 10032, USA
    Clin Neurophysiol 114:2307-25. 2003
  5. ncbi request reprint Event-related brain potentials during auditory and visual word recognition memory tasks
    Jürgen Kayser
    New York State Psychiatric Institute, Department of Biopsychology, Box 50, 1051 Riverside Drive, New York, NY 10032, USA
    Brain Res Cogn Brain Res 16:11-25. 2003
  6. ncbi request reprint Reference-independent ERP old/new effects of auditory and visual word recognition memory: Joint extraction of stimulus- and response-locked neuronal generator patterns
    Jürgen Kayser
    Division of Cognitive Neuroscience, New York State Psychiatric Institute, New York, NY 10032, USA
    Psychophysiology 44:949-67. 2007
  7. pmc ERP generator patterns in schizophrenia during tonal and phonetic oddball tasks: effects of response hand and silent count
    Jürgen Kayser
    Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY 10032, USA
    Clin EEG Neurosci 41:184-95. 2010
  8. pmc Stimulus- and response-locked neuronal generator patterns of auditory and visual word recognition memory in schizophrenia
    Jürgen Kayser
    Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY, USA
    Int J Psychophysiol 73:186-206. 2009
  9. pmc Current source density (CSD) old/new effects during recognition memory for words and faces in schizophrenia and in healthy adults
    Jürgen Kayser
    Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY, USA
    Int J Psychophysiol 75:194-210. 2010
  10. ncbi request reprint Event-related potentials (ERPs) to hemifield presentations of emotional stimuli: differences between depressed patients and healthy adults in P3 amplitude and asymmetry
    J Kayser
    Department of Biopsychology, New York State Psychiatric Institute, New York, NY 10032, USA
    Int J Psychophysiol 36:211-36. 2000

Detail Information

Publications30

  1. pmc Neuronal generator patterns of olfactory event-related brain potentials in schizophrenia
    Jürgen Kayser
    Division of Cognitive Neuroscience, New York State Psychiatric Institute, New York, New York 10032, USA
    Psychophysiology 47:1075-86. 2010
    ..N1 sink and P2 source were markedly reduced in patients for high intensity stimuli, providing further neurophysiological evidence of olfactory dysfunction in schizophrenia...
  2. ncbi request reprint Principal components analysis of Laplacian waveforms as a generic method for identifying ERP generator patterns: I. Evaluation with auditory oddball tasks
    Jürgen Kayser
    Department of Biopsychology, New York State Psychiatric Institute, New York, NY 10032, USA
    Clin Neurophysiol 117:348-68. 2006
    ....
  3. ncbi request reprint ERP/CSD indices of impaired verbal working memory subprocesses in schizophrenia
    Jürgen Kayser
    Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, New York, USA
    Psychophysiology 43:237-52. 2006
    ..Data suggest disturbed processes in a frontal-parietotemporal network in schizophrenia, affecting encoding and early item storage...
  4. ncbi request reprint Optimizing PCA methodology for ERP component identification and measurement: theoretical rationale and empirical evaluation
    Jürgen Kayser
    Department of Biopsychology, New York State Psychiatric Institute, Box 50, 1051 Riverside Drive, New York, NY 10032, USA
    Clin Neurophysiol 114:2307-25. 2003
    ..These characteristics are preserved with a covariance matrix, but lost with a correlation matrix, which assigns equal weights to each sample point, yielding the possibility that small but systematic variations may form a factor...
  5. ncbi request reprint Event-related brain potentials during auditory and visual word recognition memory tasks
    Jürgen Kayser
    New York State Psychiatric Institute, Department of Biopsychology, Box 50, 1051 Riverside Drive, New York, NY 10032, USA
    Brain Res Cogn Brain Res 16:11-25. 2003
    ..A late (beyond 900 ms), broadly-distributed negativity was also greater for old than new words, prolonged for auditory items, and may represent activity of a post-retrieval process...
  6. ncbi request reprint Reference-independent ERP old/new effects of auditory and visual word recognition memory: Joint extraction of stimulus- and response-locked neuronal generator patterns
    Jürgen Kayser
    Division of Cognitive Neuroscience, New York State Psychiatric Institute, New York, NY 10032, USA
    Psychophysiology 44:949-67. 2007
    ..These methods separated old/new stimulus source (preresponse) and response sink (postresponse) effects from motor and modality-specific ERPs...
  7. pmc ERP generator patterns in schizophrenia during tonal and phonetic oddball tasks: effects of response hand and silent count
    Jürgen Kayser
    Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY 10032, USA
    Clin EEG Neurosci 41:184-95. 2010
    ....
  8. pmc Stimulus- and response-locked neuronal generator patterns of auditory and visual word recognition memory in schizophrenia
    Jürgen Kayser
    Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY, USA
    Int J Psychophysiol 73:186-206. 2009
    ....
  9. pmc Current source density (CSD) old/new effects during recognition memory for words and faces in schizophrenia and in healthy adults
    Jürgen Kayser
    Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY, USA
    Int J Psychophysiol 75:194-210. 2010
    ..This deficit was more pronounced for common words despite a greater difficulty to recall unknown faces, indicating that it is not due to a generalized cognitive deficit in schizophrenia...
  10. ncbi request reprint Event-related potentials (ERPs) to hemifield presentations of emotional stimuli: differences between depressed patients and healthy adults in P3 amplitude and asymmetry
    J Kayser
    Department of Biopsychology, New York State Psychiatric Institute, New York, NY 10032, USA
    Int J Psychophysiol 36:211-36. 2000
    ..Results suggest intact early discrimination but abnormal late appraisal of affective content in depression, which may arise from selective inhibition of right parietal regions integral for perceiving and evaluating emotional stimuli...
  11. ncbi request reprint Brain event-related potentials (ERPs) in schizophrenia during a word recognition memory task
    J Kayser
    Department of Biopsychology, New York State Psychiatric Institute, New York, NY 10032, USA
    Int J Psychophysiol 34:249-65. 1999
    ..These findings suggest that impaired word recognition in schizophrenia may arise from a left lateralized deficit at an early stage of processing, beginning at 200-300 ms after word onset...
  12. ncbi request reprint Dissociation of brain ERP topographies for tonal and phonetic oddball tasks
    J Kayser
    Department of Biopsychology, New York State Psychiatric Institute, New York 10032, USA
    Psychophysiology 35:576-90. 1998
    ..The distinct, asymmetric N2 and P3 topographies for tonal and phonetic tasks presumably reflect differential involvement of cortical structures in pitch (right frontotemporal) and phoneme (left parietotemporal) discrimination...
  13. ncbi request reprint Principal components analysis of Laplacian waveforms as a generic method for identifying ERP generator patterns: II. Adequacy of low-density estimates
    Jürgen Kayser
    Department of Biopsychology, New York State Psychiatric Institute, New York, NY 10032, USA
    Clin Neurophysiol 117:369-80. 2006
    ..To evaluate the comparability of high- and low-density surface Laplacian estimates for determining ERP generator patterns of group data derived from a typical ERP sample size and paradigm...
  14. pmc Hemispatial PCA dissociates temporal from parietal ERP generator patterns: CSD components in healthy adults and depressed patients during a dichotic oddball task
    Craig E Tenke
    Division of Cognitive Neuroscience, New York State Psychiatric Institute, New York, NY 10032, USA
    Int J Psychophysiol 67:1-16. 2008
    ..Results are consistent with prior reports of P3 reduction in depression and implicate distinct parietal and temporal generators of P3 when using a dichotic oddball paradigm...
  15. pmc Current source density measures of electroencephalographic alpha predict antidepressant treatment response
    Craig E Tenke
    Division of Cognitive Neuroscience, New York State Psychiatric Institute, New York, New York 10032, USA
    Biol Psychiatry 70:388-94. 2011
    ..This study replicates and extends findings relating pretreatment electroencephalographic (EEG) alpha to treatment outcomes for serotonergic medications...
  16. pmc Heterogeneity of auditory verbal working memory in schizophrenia
    Gerard E Bruder
    Cognitive Neuroscience Division, Unit 50, New York State Psychiatric Institute, 1051 Riverside Drive, New York, NY 10032, USA
    J Abnorm Psychol 120:88-97. 2011
    ....
  17. ncbi request reprint Olfaction in the psychosis prodrome: electrophysiological and behavioral measures of odor detection
    Jürgen Kayser
    Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY, USA Division of Cognitive Neuroscience, New York State Psychiatric Institute, New York, NY, USA Electronic address
    Int J Psychophysiol 90:190-206. 2013
    ..Thus, despite the lack of overall group differences, olfactory measures may be of utility in predicting transition to psychosis among CHR patients...
  18. pmc Reduced brain responses to novel sounds in depression: P3 findings in a novelty oddball task
    Gerard E Bruder
    Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY 10032, USA
    Psychiatry Res 170:218-23. 2009
    ..Nor was there a group difference in the earlier N1 or N2 potentials. The novelty P3 reduction in depressed patients is indicative of a deficit in orienting of attention and evaluation of novel environmental sounds...
  19. pmc A neurophysiological deficit in early visual processing in schizophrenia patients with auditory hallucinations
    Jürgen Kayser
    Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, New York, USA
    Psychophysiology 49:1168-78. 2012
    ..Our findings extend prior reports of reduced auditory N1 in AH, suggesting a broader early perceptual integration deficit that is not limited to the auditory modality...
  20. pmc EEG hemispheric asymmetries during cognitive tasks in depressed patients with high versus low trait anxiety
    Carlye B G Manna
    Division of Cognitive Neuroscience, New York State Psychiatric Institute, New York, NY 10032, USA
    Clin EEG Neurosci 41:196-202. 2010
    ..These results are consistent with Heller's two-dimensional model of depression and anxiety and highlight the sensitivity of task-related EEG alpha in discriminating among subgroups of depressed patients differing in trait anxiety...
  21. pmc Novelty P3 reductions in depression: characterization using principal components analysis (PCA) of current source density (CSD) waveforms
    Craig E Tenke
    Division of Cognitive Neuroscience, New York State Psychiatric Institute, New York, NY 10032, USA
    Psychophysiology 47:133-46. 2010
    ..Compatible CSD-PCA findings were also confirmed for the original low-density sample. Results are consistent with a reduced novelty response in clinical depression, involving the early phase of the frontocentral novelty P3...
  22. ncbi request reprint Auditory event-related potentials and alpha oscillations in the psychosis prodrome: Neuronal generator patterns during a novelty oddball task
    Jürgen Kayser
    Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY, USA Division of Cognitive Neuroscience, New York State Psychiatric Institute, New York, NY, USA Electronic address
    Int J Psychophysiol 91:104-20. 2014
    ..Novelty MMN at FCz was, however, absent in the three converters. In agreement with prior findings, alpha ERD and MMN may hold particular promise for predicting transition to psychosis among CHR patients. ..
  23. pmc Generator localization by current source density (CSD): implications of volume conduction and field closure at intracranial and scalp resolutions
    Craig E Tenke
    Division of Cognitive Neuroscience, New York State Psychiatric Institute, New York, NY, USA
    Clin Neurophysiol 123:2328-45. 2012
    ..CSD methods thereby provide a global empirical and biophysical context for generator localization, spanning scales from intracortical to scalp recordings...
  24. ncbi request reprint Cognitive ERPs in depressive and anxiety disorders during tonal and phonetic oddball tasks
    Gerard E Bruder
    Department of Biopsychology, New York State Psychiatric Institute, Unit 50, 1051 Riverside Drive, New York, NY 10032, USA
    Clin Electroencephalogr 33:119-24. 2002
    ....
  25. ncbi request reprint Reference-free quantification of EEG spectra: combining current source density (CSD) and frequency principal components analysis (fPCA)
    Craig E Tenke
    Department of Biopsychology, New York State Psychiatric Institute, NY 10032 2695, USA
    Clin Neurophysiol 116:2826-46. 2005
    ..Conciseness and interpretability of EEG and CSD fPCA solutions were compared for three common scaling methods...
  26. ncbi request reprint A convenient method for detecting electrolyte bridges in multichannel electroencephalogram and event-related potential recordings
    C E Tenke
    Department of Biopsychology, Unit 50, New York State Psychiatric Institute, 1051 Riverside Drive, New York, NY, USA
    Clin Neurophysiol 112:545-50. 2001
    ..When a low impedance bridge exists, the Hjorth algorithm identifies all affected sites as flat lines that are readily distinguishable from Hjorth waveforms at unbridged electrodes...
  27. ncbi request reprint Event-related potential (ERP) asymmetries to emotional stimuli in a visual half-field paradigm
    J Kayser
    Institute of Psychology, Technical University of Berlin, Germany
    Psychophysiology 34:414-26. 1997
    ..Overall, findings for N2 and P3 support theories of an asymmetry in emotional processing...
  28. ncbi request reprint Identifying electrode bridging from electrical distance distributions: a survey of publicly-available EEG data using a new method
    Daniel M Alschuler
    Division of Cognitive Neuroscience, New York State Psychiatric Institute, New York, NY, USA Electronic address
    Clin Neurophysiol 125:484-90. 2014
    ..We therefore sought to determine the prevalence of electrode bridging and its potential impact on the EEG literature...
  29. ncbi request reprint Event-related brain potentials (ERPs) in schizophrenia for tonal and phonetic oddball tasks
    J Kayser
    Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, New York, USA
    Biol Psychiatry 49:832-47. 2001
    ..Task-independent reductions of negativities between 80 and 280 msec after stimulus onset suggest a deficit of automatic stimulus classification in schizophrenia, which may be partly compensated by later effortful processing...
  30. ncbi request reprint Event-related potentials in schizophrenia during tonal and phonetic oddball tasks: relations to diagnostic subtype, symptom features and verbal memory
    G E Bruder
    Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY, USA
    Biol Psychiatry 50:447-52. 2001
    ..The findings also confirm the relationship of P3 to total Brief Psychiatric Rating Scale score, negative symptoms, and verbal associative memory...