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Auditory-Cortex Short-Term Plasticity Induced by Selective Attention
المؤلفون المشاركون
Jääskeläinen, Iiro P.
Ahveninen, Jyrki
المصدر
العدد
المجلد 2014، العدد 2014 (31 ديسمبر/كانون الأول 2014)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2014-01-12
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
The ability to concentrate on relevant sounds in the acoustic environment is crucial for everyday function and communication.
Converging lines of evidence suggests that transient functional changes in auditory-cortex neurons, “short-term plasticity”, might explain this fundamental function.
Under conditions of strongly focused attention, enhanced processing of attended sounds can take place at very early latencies (~50 ms from sound onset) in primary auditory cortex and possibly even at earlier latencies in subcortical structures.
More robust selective-attention short-term plasticity is manifested as modulation of responses peaking at ~100 ms from sound onset in functionally specialized nonprimary auditory-cortical areas by way of stimulus-specific reshaping of neuronal receptive fields that supports filtering of selectively attended sound features from task-irrelevant ones.
Such effects have been shown to take effect in ~seconds following shifting of attentional focus.
There are findings suggesting that the reshaping of neuronal receptive fields is even stronger at longer auditory-cortex response latencies (~300 ms from sound onset).
These longer-latency short-term plasticity effects seem to build up more gradually, within tens of seconds after shifting the focus of attention.
Importantly, some of the auditory-cortical short-term plasticity effects observed during selective attention predict enhancements in behaviorally measured sound discrimination performance.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Jääskeläinen, Iiro P.& Ahveninen, Jyrki. 2014. Auditory-Cortex Short-Term Plasticity Induced by Selective Attention. Neural Plasticity،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1046661
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Jääskeläinen, Iiro P.& Ahveninen, Jyrki. Auditory-Cortex Short-Term Plasticity Induced by Selective Attention. Neural Plasticity No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-1046661
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Jääskeläinen, Iiro P.& Ahveninen, Jyrki. Auditory-Cortex Short-Term Plasticity Induced by Selective Attention. Neural Plasticity. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1046661
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1046661
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