Discrimination of emotional states from scalp- and intracranial EEG using multiscale Renyi entropy
File(s)
Published version
Author(s)
Tonoyan, Yelena
Chanwimalueang, Theerasak
Mandic, Danilo P
Van Hulle, Marc M
Type
Journal Article
Abstract
A data-adaptive, multiscale version of Rényi’s quadratic entropy (RQE) is introduced for emotional state discrimination from EEG recordings. The algorithm is applied to scalp EEG recordings of 30 participants watching 4 emotionally-charged video clips taken from a validated public database. Krippendorff’s inter-rater statistic reveals that multiscale RQE of the mid-frontal scalp electrodes best discriminates between five emotional states. Multiscale RQE is also applied to joint scalp EEG, amygdala- and occipital pole intracranial recordings of an implanted patient watching a neutral and an emotionally charged video clip. Unlike for the neutral video clip, the RQEs of the mid-frontal scalp electrodes and the amygdala-implanted electrodes are observed to coincide in the time range where the crux of the emotionally-charged video clip is revealed. In addition, also during this time range, phase synchrony between the amygdala and mid-frontal recordings is maximal, as well as our 30 participants’ inter-rater agreement on the same video clip. A source reconstruction exercise using intracranial recordings supports our assertion that amygdala could contribute to mid-frontal scalp EEG. On the contrary, no such contribution was observed for the occipital pole’s intracranial recordings. Our results suggest that emotional states discriminated from mid-frontal scalp EEG are likely to be mirrored by differences in amygdala activations in particular when recorded in response to emotionally-charged scenes.
Date Issued
2017-11-03
Date Acceptance
2017-10-10
Citation
PLOS One, 2017, 12 (11)
ISSN
1932-6203
Publisher
PUBLIC LIBRARY SCIENCE
Journal / Book Title
PLOS One
Volume
12
Issue
11
Copyright Statement
© 2017 Tonoyan et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Engineering & Physical Science Research Council (E
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000414377900011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
EP/K025643/1
EP/P008461/1
Subjects
Science & Technology
Multidisciplinary Sciences
Science & Technology - Other Topics
TIME-SERIES ANALYSIS
TEMPORAL-LOBE
ELECTRICAL-STIMULATION
SAMPLE ENTROPY
HUMAN AMYGDALA
RESPONSES
COMPLEXITY
DYNAMICS
ERP
IDENTIFICATION
Publication Status
Published
Article Number
ARTN e0186916