Title
Matching-stimulus intervals determine P3b amplitudes for both targets and nontargets
Document Type
Journal Article
RIS ID
69575
Abstract
It is well established that the amplitude of the Late Positive Complex (LPC) of the event-related potential (ERP) is affected by changes in global target probability, stimulus sequence, and interstimulus interval (ISI). These probability and timing manipulations, however, also alter the target-to-target interval (TTI). Our previous research has systematically shown thatwhen global target probability, stimulus sequence, and ISI are held constant, TTI is a principal determinant of LPC amplitude, with larger LPCs to longer TTIs. Most research in a matching-stimulus interval context has examined changes in LPC amplitudes to targets, rather than nontargets, and all of this research has considered the LPC as a unitary ERP component. The aim of the present study was to explore matching-stimulus interval effects in one of the most widely explored subcomponents of the LPC, the P3b, to both targets (TTI) and nontargets (nontarget-to-nontarget interval; NNI).
This record is in the process of being updated. Please contact us for more information.
Publication Details
Steiner, G. Z., Barry, R. J. & Gonsalvez, C. J. (2012). Matching-stimulus intervals determine P3b amplitudes for both targets and nontargets. International Journal of Psychophysiology, 85 (3), 399-400.