P300 topography of Amplitude/Latency correlations

John Polich, Joel E. Alexander, Lance O. Bauer, Samuel Kuperman, Sandra Morzorati, Sean J. O'Connor, Bernice Porjesz, J. Rohrbaugh, Henri Begleiter

Research output: Contribution to journalArticle

92 Scopus citations

Abstract

The correlational association from 19 electrode sites between peak amplitude and latency for the P3(00) event-related brain potential (ERP) for n=80 homogeneous subjects was assessed using a simple auditory discrimination task. The correlation strength varied systematically across scalp topography in different ways for the various ERP components. For the target stimuli, P3 amplitude and latency were negatively correlated and most tightly coupled over the frontal-central and right medial/lateral recording sites. In contrast, the N1 produced negative correlations that were strongest over the left and right central/lateral locations; P2 demonstrated a positive correlation that was strongest frontally and centrally; N2 demonstrated a positive correlations that was strongest over the central and parietal sites. ERPs from the standard stimuli produced generally similar patterns for the P3 and P2 components, with only weak or no reliable effects observed for the N1 and N2 potentials. Taken together, the findings suggest that analysis of amplitude/latency correlational relationships can provide information about ERP component generation. Theoretical implications are discussed.

Original languageEnglish (US)
Pages (from-to)275-282
Number of pages8
JournalBrain Topography
Volume9
Issue number4
DOIs
StatePublished - Aug 20 1997

Keywords

  • Amplitude
  • Correlations
  • Event-related potentials (erps)
  • Latency
  • P3(00)
  • Topography

ASJC Scopus subject areas

  • Anatomy
  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging
  • Neurology
  • Clinical Neurology

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  • Cite this

    Polich, J., Alexander, J. E., Bauer, L. O., Kuperman, S., Morzorati, S., O'Connor, S. J., Porjesz, B., Rohrbaugh, J., & Begleiter, H. (1997). P300 topography of Amplitude/Latency correlations. Brain Topography, 9(4), 275-282. https://doi.org/10.1007/BF01464482