TY - JOUR
T1 - Defensiveness, anxiety and the amplitude/intensity function of auditory-evoked potentials
AU - Kline, John P.
AU - Schwartz, Gary E.
AU - Fitzpatrick, Denis F.
AU - Hendricks, Shelton E.
N1 - Funding Information:
This paper is based on a thesis submitted by the first author to the graduate college of the University of Nebraska in partial fulfillment of the requirements for a Master of Arts degree. The authors respectfully acknowledge the statistical advice of Richard Wikoff, and the technical advice of Scott Balogh and Stephen R. Paige. Thanks also go to Ziya Dikman and C. Raymond Millimet for their comments on earlier drafts of this paper. Support for this work was provided by the University of Nebraska Medical Center, Department of Psychiatry and by the University of Arizona, Department of Psychology.
PY - 1993/7
Y1 - 1993/7
N2 - This study measured relationships between defensiveness, anxiety, and auditory-evoked potentials to tones of varied intensity. Subjects were designated as defensive if they scored ≥ 7 on the L-scale of the Eysenck Personality Questionnaire, and high-anxious if they scored ≥ 11 on the N-scale. Four groups resulted: 'high anxious', 'defensive high anxious', 'repressors' (i.e., defensive low anxious) and 'low anxious'. Evoked potentials were recorded from FZ, CZ, PZ, C3, C4, T3 and T4, referenced to linked ears in response to 74, 84, 94 and 104 dB SPL tones. High-defensive subjects showed lower P2 amplitudes to the 94 and 104 dB tones and lower amplitude/intensity slopes at FZ, CZ, C3 and C4. High-anxious subjects showed lower P2 amplitudes to all four stimul lus intensities at FZ, CZ and PZ. The results are consistent with the hypothesis that defensiveness is associated with desensitization to intense or painful stimulation.
AB - This study measured relationships between defensiveness, anxiety, and auditory-evoked potentials to tones of varied intensity. Subjects were designated as defensive if they scored ≥ 7 on the L-scale of the Eysenck Personality Questionnaire, and high-anxious if they scored ≥ 11 on the N-scale. Four groups resulted: 'high anxious', 'defensive high anxious', 'repressors' (i.e., defensive low anxious) and 'low anxious'. Evoked potentials were recorded from FZ, CZ, PZ, C3, C4, T3 and T4, referenced to linked ears in response to 74, 84, 94 and 104 dB SPL tones. High-defensive subjects showed lower P2 amplitudes to the 94 and 104 dB tones and lower amplitude/intensity slopes at FZ, CZ, C3 and C4. High-anxious subjects showed lower P2 amplitudes to all four stimul lus intensities at FZ, CZ and PZ. The results are consistent with the hypothesis that defensiveness is associated with desensitization to intense or painful stimulation.
KW - Anxiety
KW - Augmenting-reducing
KW - Defensiveness
KW - Electroencephalography
KW - Evoked potential
KW - Eysenck personality questionnaire
KW - Repression
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U2 - 10.1016/0167-8760(93)90090-C
DO - 10.1016/0167-8760(93)90090-C
M3 - Article
C2 - 8407437
AN - SCOPUS:0027219190
SN - 0167-8760
VL - 15
SP - 7
EP - 14
JO - International Journal of Psychophysiology
JF - International Journal of Psychophysiology
IS - 1
ER -