Extraversion,neuroticism and individual differences in event-related potentials |
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| Affiliation: | 1. Department of Surgical Neuro-Oncology, National Institute of Neurology and Neurosurgery, South Insurgentes Avenue 3877, Tlalpan, 14269 Mexico City, Mexico;2. Department of Radiosurgery, National Institute of Neurology and Neurosurgery, South Insurgentes Avenue 3877, Tlalpan, 14269 Mexico City, Mexico;3. Department of Neurosurgery, National Institute of Neurology and Neurosurgery, South Insurgentes Avenue 3877, Tlalpan, 14269 Mexico City, Mexico;1. Postgraduate Year 1 Resident, Department of Oral and Maxillofacial Surgery, Hospital of the University of Pennsylvania, Philadelphia, PA;2. Professor and Chair, Department of Oral and Maxillofacial Surgery, and Associate Dean for Hospital Affairs, University of Washington School of Dentistry, Seattle, WA;3. Senior Research Associate, American Association of Oral and Maxillofacial Surgeons, Rosemont, IL;4. Associate Professor, Harvard School of Dental Medicine; and Director, Center for Applied Clinical Investigation, Massachusetts General Hospital, Boston, MA;1. Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany;2. Chair of Lifespan Developmental Neuroscience, Faculty of Psychology, Technische Universität Dresden, Dresden, Germany;1. University of Utah, Salt Lake City, UT, United States;2. Medical University of South Carolina, Charleston, SC, United States;3. University of North Carolina at Chapel Hill, Chapel Hill, United States;1. Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France;2. Department of Anesthesiology, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France;3. Institute for Neuroscience of Montpellier, Saint Eloi Hospital, Montpellier University Medical Center, Montpellier, France;1. The University of Texas Health Science Center at Houston, Department of Psychiatry and Behavioral Sciences, 1941 East Rd, Houston, TX 77054, United States;2. VCU School of Medicine, Department of Psychiatry, 203 East Cary Street, Suite 202, Richmond, VA 23219, United States |
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| Abstract: | Event-related potentials (ERPs) in response to task-irrelevant tone pips were elicited during meaningful and meaningless speech passages for two groups of subjects selected on the basis of their scores on the extraversion-introversion scale of the Eysenck Personality Questionnaire, ERPs were recorded from two temporal (T3 and T4) and Wernicke (W1 and W2) scalp locations. Peak latencies and amplitudes of N1, P2 and N2 components were obtained for each subject during each meaningful and meaningless condition. The extraverts exhibited higher levels of subjective engagement in the meaningful-speech condition than in meaningless condition; the opposite trend was found for introverts. The extraverts showed greater N2 amplitude in the meaningful-speech condition than in the meaningless condition; the reverse trend across conditions was found for introverts. |
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