کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4349924 1296964 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effects of interstimulus interval on sensory gating and on preattentive auditory memory in the oddball paradigm: Can magnitude of the sensory gating affect preattentive auditory comparison process?
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
The effects of interstimulus interval on sensory gating and on preattentive auditory memory in the oddball paradigm: Can magnitude of the sensory gating affect preattentive auditory comparison process?
چکیده انگلیسی

P50, and mismatch negativity (MMN) are components of event-related potentials (ERP) reflecting sensory gating and preattentive auditory memory, respectively. Interstimulus interval (ISI) is an important determinant of the amplitudes of these components and N1. In the present study the interrelation between stimulus gating and preattentive auditory sensory memory were investigated as a function of ISI in 1.5, 2.5 and 3.5 s in 15 healthy volunteered participants. ISI factor affected the N1 peak amplitude significantly. MMN amplitude in 2.5 s ISI was significantly smaller compared to 1.5 and 3.5 s ISI. ISI X stimuli interaction on P50 amplitude was statistically significant. P50 amplitudes to deviant stimuli in 2.5 s ISI were larger than the P50 amplitudes in other ISIs. P50 difference (P50d) waveform amplitude correlated significantly with MMN amplitude. The results suggest that: (i) auditory sensory gating could affect preattentive auditory sensory memory by supplying input to the comparator mechanism; (ii) 2.5 s ISI is important in displaying the sensory gating and preattentive auditory sensory memory relation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience Letters - Volume 412, Issue 1, 22 January 2007, Pages 1–5
نویسندگان
, , ,