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Token update paper
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tsbinns committed Nov 13, 2024
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Expand Up @@ -61,7 +61,7 @@ Phase-amplitude coupling refers to the interaction between the phase of a lower

\autoref{fig:overview}

## Time delay analysis
## Time delay analysi

Time delay analysis provides insight into the physical connections between brain regions by identifying latencies of information transfer between signals, complementing structural analyses using electrophysiology data [@Silchenko2010;@Binns2024]. A traditional approach for time delay analysis is cross-correlation, quantifying the similarity of signals at a set of time lags. However, there a two key limitations to this approach, including its limited robustness to noise in the data [@Nikias1988], as well as a vulnerability to spurious zero time lag interactions arising due to volume conduction and source mixing in the sensor space [@Chella2014]. On the other hand, the bispectrum is resilient to Gaussian noise sources in the data [@Nikias1988], and the process of antisymmetrisation can also be used to correct for spurious zero time lag interactions [@Chella2014]. `PyBispectra` provides tools for time delay analysis using the bispectrum, with options for antisymmetrisation, offering a robust method for the analysis of time delays in electrophysiology data.

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