منابع مشابه
Measuring phase synchrony in brain signals.
This article presents, for the first time, a practical method for the direct quantification of frequency-specific synchronization (i.e., transient phase-locking) between two neuroelectric signals. The motivation for its development is to be able to examine the role of neural synchronies as a putative mechanism for long-range neural integration during cognitive tasks. The method, called phase-lo...
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Measurement of synchrony in networks of complex or high-dimensional, nonstationary, and noisy systems such as the mammalian brain is technically difficult. We present a general method to analyze synchrony from multichannel time series. The idea is to calculate the phase-synchronization times and to construct a matrix. We develop a random-matrix-based criterion for proper choosing of the diagona...
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Phase synchronization is an important phenomenon that occurs in a wide variety of complex oscillatory processes. Measuring phase synchronization can therefore help to gain fundamental insight into nature. In this Letter we point out that synchronization analysis techniques can detect spurious synchronization, if they are fed with a superposition of signals such as in electroencephalography or m...
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A finite register method of processing dialog transcripts is used to measure interlocutor synchrony. Successive contributions by participants are measured for word n-gram repetitions and temporal overlaps. The Zipfian distribution of words in language use leads to a natural expectation that random re-orderings of dialog contributions will unavoidably exhibit repetition – one might reasonably ex...
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Estimating the degree of synchrony or reliability between two or more spike trains is a frequent task in both experimental and computational neuroscience. In recent years, many different methods have been proposed that typically compare the timing of spikes on a certain time scale to be optimized by the analyst. Here, we propose the ISI-distance, a simple complementary approach that extracts in...
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ژورنال
عنوان ژورنال: Human Brain Mapping
سال: 1999
ISSN: 1065-9471,1097-0193
DOI: 10.1002/(sici)1097-0193(1999)8:4<194::aid-hbm4>3.0.co;2-c