کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3071957 1580925 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Auditory-driven phase reset in visual cortex: Human electrocorticography reveals mechanisms of early multisensory integration
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب شناختی
پیش نمایش صفحه اول مقاله
Auditory-driven phase reset in visual cortex: Human electrocorticography reveals mechanisms of early multisensory integration
چکیده انگلیسی


• Auditory driven phase reset occurs over visual cortices.
• This can lead to an auditory evoked potential.
• Multisensory interactions occur extensively in visual cortices.
• In visual regions, auditory phase resetting interacts with evoked visual activity.

Findings in animal models demonstrate that activity within hierarchically early sensory cortical regions can be modulated by cross-sensory inputs through resetting of the phase of ongoing intrinsic neural oscillations. Here, subdural recordings evaluated whether phase resetting by auditory inputs would impact multisensory integration processes in human visual cortex. Results clearly showed auditory-driven phase reset in visual cortices and, in some cases, frank auditory event-related potentials (ERP) were also observed over these regions. Further, when audiovisual bisensory stimuli were presented, this led to robust multisensory integration effects which were observed in both the ERP and in measures of phase concentration. These results extend findings from animal models to human visual cortices, and highlight the impact of cross-sensory phase resetting by a non-primary stimulus on multisensory integration in ostensibly unisensory cortices.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: NeuroImage - Volume 79, 1 October 2013, Pages 19–29
نویسندگان
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