Abstract Mkid 260 - Sleep and Hypnosis : A Journal of Clinical Neuroscience and Psychopathology

SUBMIT YOUR MANUSCRIPT

Register

Author Login

Reviewer Login

Examining Dense-Array Electroencephalographic Networks during Sleep – Partial or Non-Partial Correlations?

Calvin Kai-Ching Yu, Wang-On Li

Sleep and Hypnosis: A Journal of Clinical Neuroscience and Psychopathology 2018;20(4):253-261

http://dx.doi.org/10.5350/Sleep.Hypn.2018.20.0159

Both partial and non-partial correlation methods have been utilized by researchers to construct dense-array electroencephalographic (dEEG) networks. Similarly, researchers have been using different protocols to preprocess data and minimize spurious correlations. This methodological study examined the extent to which the dEEG connectivity networks computed by the non-partial, first-order partial, and (N-2)-order/254th-order partial correlation methods resemble each other, with two autoregressive integrative moving average (ARIMA) preprocessing models and three sample lengths being taken into consideration. Data were collected from two volunteers during the last 60 seconds of the second and fourth rapid-eye-movement epochs using a 256-channel electroencephalographic system and prior to correlation analyses, were preprocessed by either ARIMA (40, 1, 1) or ARIMA (20, 1, 1) transformation. The analyses demonstrate that the partial method, even at the first-order level, can substantially suppress the overall degree of connectivity in a network. Nevertheless, the moderate-to-large rank-order correlation values comparing the similarities between the three network-construction methods casts doubt on the supposition that a network built upon partial correlations is fundamentally distinguished from that derived from non-partial correlations.

Keywords:
functional connectivity, high-density EEG, partial correlation, rapid eye movement, synchronous cortical activity

REFERENCES

Dimitriadis, S. I, Laskaris, N. A., Del Rio-Portilla, Y., & Koudounis, G. Ch. (2009). Characterizing dynamic functional connectivity across sleep stages from EEG. Brain Topography, 22, 119-133.

Iber, C., Ancoli-Israel, S., Chesson, A., & Quan, S. F. (2007). The AASM manual for the scoring of sleep and associated events: Rules, terminology and technical specifications. Winchester, IL: American Academy of Sleep Medicine.

Jalili, M., & Knyazeva, M. G. (2011a). Constructing brain functional networks from EEG: Partial and unpartial correlations. Journal of Integrative Neuroscience, 10, 213-232.

Jalili, M., & Knyazeva, M. G. (2011b). EEG-based functional networks in schizophrenia. Computers in Biology and Medicine, 41, 1178-1186.

Langheim, F. J. P., Murphy, M., Riedner, B. A., & Tononi, G. (2011). Functional connectivity in slow-wave sleep: Identification of synchronous cortical activity during wakefulness and sleep using time series analysis of electroencephalographic data. Journal of Sleep Research, 20, 496-505.

Pagel, J. F. (2012). The synchronous electrophysiology of conscious states. Dreaming, 22, 173-191.

Yu, C. K.-C. (2001a). Neuroanatomical correlates of dreaming: The supramarginal gyrus controversy (dream work). Neuro-Psychoanalysis, 3, 47-59.

Yu, C. K.-C. (2001b). Neuroanatomical correlates of dreaming, II: The ventromesial frontal region controversy (dream instigation). Neuro-Psychoanalysis, 3, 193-201.

Yu, C. K.-C. (2003). Neuroanatomical correlates of dreaming, III: The frontal-lobe controversy (dream censorship). Neuro-Psychoanalysis, 5, 159-169.

Yu, C. K.-C. (2006). Memory loss is not equal to loss of dream experience: A clinicoanatomical study of dreaming in patients with posterior brain lesions. Neuro-Psychoanalysis, 8, 191-198.

Yu, C. K.-C. (2007). Cessation of dreaming and ventromesial frontal-region infarcts. Neuro-Psychoanalysis, 9, 85-92.

Yu, C. K.-C. (2014). Toward 100% dream retrieval by rapid-eye-movement sleep awakening: A high-density electroencephalographic study. Dreaming, 24, 1-17.

Yu, C. K.-C. (2015a). A high-density electroencephalographic study of synchronous networks during rapid-eye-movement sleep. Dreaming, 25, 1-17.

Yu, C. K.-C. (2015b). The vicissitudes of affective valence across the night: A high-density electroencephalographic study. Dreaming, 25, 274-290.

Yu, C. K.-C. (2016a). We dream typical themes every single night. Dreaming, 26, 319-329.

Yu, C. K.-C. (2016b). A neuroanatomical framework for understanding dream content. Sleep and Hypnosis, 18, 82-91.

Yu, C. K.-C., & Li, W.-O. (2018). A fundamental question about the application of high-density electroencephalography and time-series analysis in examining synchronous networks during sleep – Does the use of different referencing and data preprocessing methods really matter? Sleep and Hypnosis, 20, 67-84.

GUIDE FOR AUTHORS

EDITORIAL BOARD

ABOUT JOURNAL

INDEXED IN

AHEAD OF PRINT

ARCHIVES

CURRENT ISSUE

CONTACT US