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Matching-stimulus intervals determine P3b amplitudes for both targets and nontargets

Journal Article


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).

Publication Date


  • 2012

Citation


  • 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.

Ro Metadata Url


  • http://ro.uow.edu.au/hbspapers/3104

Number Of Pages


  • 1

Start Page


  • 399

End Page


  • 400

Volume


  • 85

Issue


  • 3

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).

Publication Date


  • 2012

Citation


  • 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.

Ro Metadata Url


  • http://ro.uow.edu.au/hbspapers/3104

Number Of Pages


  • 1

Start Page


  • 399

End Page


  • 400

Volume


  • 85

Issue


  • 3