TY - CONF
TI - G-autonomy of EEG recordings of psychotic patients undergoing the
primitive expression form of dance therapy
AU - Ventouras, E-C
AU - Lardi, I.
AU - Dimitriou, S.
AU - Margariti, A. and
AU - Chondraki, P.
AU - Kalatzis, I.
AU - Economou, N-T
AU - Tsekou, H. and
AU - Paparrigopoulos, T.
AU - Ktonas, P. Y.
PY - 2015
SP - null
PB - IOP Publishing Ltd
T2 - INTERNATIONAL CONFERENCE ON BIO-MEDICAL INSTRUMENTATION AND RELATED
ENGINEERING AND PHYSICAL SCIENCES (BIOMEP 2015)
TODO - 10.1088/1742-6596/637/1/012032
TODO - null
TODO - Primitive expression (PE) is a form of dance therapy (DT) that involves
an interaction of ethologically and socially based forms which are
supplied for re-enactment. Brain connectivity has been measured in
electroencephalographic (EEG) data of patients with schizophrenia
undergoing PE DT, using the correlation coefficient and mutual
information. These parameters do not measure the existence or absence of
directionality in the connectivity. The present study investigates the
use of the G-autonomy measure of EEG electrode voltages of the same
group of schizophrenic patients. G-autonomy is a measure of the
“autonomy” of a system. It indicates the degree by which prediction
of the system’s future evolution is enhanced by taking into account its
own past states, in comparison to predictions based on past states of a
set of external variables. In the present research, “own” past
states refer to voltage values in the time series recorded at a specific
electrode and “external” variables refer to the voltage values
recorded at other electrodes. Indication is provided for an acute effect
of early-stage PE DT expressed by the augmentation of G-autonomy in the
delta rhythm and an acute effect of late-stage PE DT expressed by the
reduction of G-autonomy in the theta and alpha rhythms.
ER -