کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9407993 1290438 2005 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Inhibiting change: Effects of memory on auditory selective attention
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب رفتاری
پیش نمایش صفحه اول مقاله
Inhibiting change: Effects of memory on auditory selective attention
چکیده انگلیسی
Two experiments investigated the behavioral and electrophysiological effects on human auditory selection of the psychophysical discriminability of a distractor channel in memory. Participants performed a set of baseline (single distractor) and filtering (multiple distractors) tasks, classifying the pitch of targets, while ignoring pitch variation in temporally distinct distractors, which differed from targets in timbre (Experiment 1) or loudness (Experiment 2). Increased distractor change progressively disrupted target accuracy and reaction time, and fostered confusion in distinguishing target from distractor channels. Physiologically, relative discriminability only affected distractor waveforms, whether or not distractor values physically differed across tasks, enhancing the N1 response while reducing an inhibitory slow-wave component. The results suggest that inhibition fails as distractors activate a wider range of the task-relevant continuum in working memory.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cognitive Brain Research - Volume 25, Issue 2, October 2005, Pages 431-442
نویسندگان
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