Abstract:
:The one-year reliability of auditory evoked potential (AEP) amplitude/stimulus intensity slopes (obtained for single channels and with dipole source analysis) and the stability and criterion validity of alternative measures to the conventional AEPs augmenting/reducing (A/R) linear slope were explored in a sample of 21 psychology students. AEPs were obtained from two sequences of 288 Ss of different intensities (60, 80, 90, and 110 dB SPL), presented in four blocks of 72 tones of each intensity or in a pseudorandomized order. The Zuckerman's Sensation Seeking Scale, which has been associated to the A/R slope, was used as a criterion measure. The results supported the one-year reliability of N1P2 slopes obtained in single channels (especially for Fz and Cz and for the random presentation of stimuli) and for dipoles obtained with brain electric source analysis (especially for the tangential dipoles). Neither of the A/R measures was significantly related to the criterion. These results support the stability of AEPs A/R, but throw serious doubts on the use of this psychophysiological phenomenon as a correlate of personality dimensions such as sensation seeking.
journal_name
Psychophysiologyjournal_title
Psychophysiologyauthors
Carrillo-de-la-Peña MTsubject
Has Abstractpub_date
2001-05-01 00:00:00pages
417-24issue
3eissn
0048-5772issn
1540-5958journal_volume
38pub_type
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