کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
929798 1474418 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nontarget-to-nontarget interval determines the nontarget P300 in an auditory equiprobable Go/NoGo task
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب رفتاری
پیش نمایش صفحه اول مقاله
Nontarget-to-nontarget interval determines the nontarget P300 in an auditory equiprobable Go/NoGo task
چکیده انگلیسی


• Demonstrates that the nontarget-to-nontarget interval affects P300 amplitude
• Replicates TTI effects in P3b component
• LORETA source localisation of P3b and SW
• Employs principal components analysis (PCA)

Increases in the target-to-target interval (TTI) systematically enhance the amplitude of the target P300 ERP component. Research examining changes in nontarget P300 related to nontarget-to-nontarget interval (NNI) or sequential probability manipulations has produced inconsistent results, with some studies reporting no enhancement in nontarget P300 and others finding response profiles analogous to TTI effects. Our aim was to clarify these differences. All participants completed a specially designed auditory equiprobable Go/NoGo task with manipulations of TTI and NNI while their EEG activity was recorded. P300 amplitudes were extracted using temporal PCA with Varimax rotation. P3b to targets and nontargets increased systematically as respective TTIs/NNIs increased, but this change did not differ between stimulus types. The Slow Wave did not show any effect of interval, but was more positive to targets than nontargets when interval was collapsed. P3b findings show that matching-stimulus interval effects are not restricted to targets, but discrepancies relative to previous research suggest that NNI effects in P3b may depend on additional processing of nontarget stimuli.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Psychophysiology - Volume 92, Issue 3, June 2014, Pages 113–121
نویسندگان
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