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Brain Topography

, Volume 2, Issue 4, pp 269–274 | Cite as

A Topographic study of differences in the P300 between introverts and extraverts

  • Martha A. Wilson
  • Marlin L. Languis
Article

Summary

This paper presents results of a study to establish a link between neurocognitive psychophysiological and psychological type data through the investigation of differences in topographic auditory event-related potential (AERP) (P300) patterns in strongly introverted (n=17) and strongly extraverted (n=16) high school males as identified by the Myers Briggs Type Indicator. Group data files were created for the auditory event related potential task and converted to ASCII form. Amplitude values were evaluated at each scalp site. Kruskal Wallis one way analysis of variance was performed to evaluate group differences. In processing of infrequent, target stimuli, the amplitude of the P300 waveform for introverts was higher than for extraverts. When processing for non-target stimuli was subtracted from target stimuli, statistical differences were found over nine central, parietal, and occipital sites. The findings support and extend theories of biologically-based and bio-psycho-social typology.

Key words

Topographic Mapping Brain mapping P300 Auditory event-related potential Psychological type Personality 

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Copyright information

© Human Sciences Press, Inc 1990

Authors and Affiliations

  • Martha A. Wilson
    • 2
  • Marlin L. Languis
    • 1
  1. 1.Brain Behavior LaboratoryThe Ohio State UniversityUSA
  2. 2.Capital UniversityColumbusUSA

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