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20 psychiatric patients without pharmacologic therapy and an homogeneous control group of 19 healthy subjects have been submitted to an electroencephalographic (EEG) investigation. Computerized spectral analyses of the main EEG frequency bands have been performed. The spectra have been determined by some geometrical descriptors: the relative activity, the barycentric frequency and the barycentric radius; also classic descriptors have been used as complementary ones. In the EEG profile significant differences between patients and healthy subjects have been found. Some differences have also been observed among subgroups of schizophrenic patients. The geometrical descriptors applied in the EEG analysis are suggested as a useful method in the description of the basic characteristics of the main EEG frequency bands.
D Kemali, and
L Vacca, and
F Marciano, and
T Celani, and
G Nolfe, and
G Iorio
April 1987,
Zhonghua shen jing jing shen ke za zhi = Chinese journal of neurology and psychiatry,
D Kemali, and
L Vacca, and
F Marciano, and
T Celani, and
G Nolfe, and
G Iorio
October 1981,
The Journal of nervous and mental disease,
D Kemali, and
L Vacca, and
F Marciano, and
T Celani, and
G Nolfe, and
G Iorio
October 1986,
Biological psychiatry,
D Kemali, and
L Vacca, and
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T Celani, and
G Nolfe, and
G Iorio
September 1959,
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D Kemali, and
L Vacca, and
F Marciano, and
T Celani, and
G Nolfe, and
G Iorio
January 1992,
Seishin shinkeigaku zasshi = Psychiatria et neurologia Japonica,
D Kemali, and
L Vacca, and
F Marciano, and
T Celani, and
G Nolfe, and
G Iorio
January 1988,
Schizophrenia bulletin,
D Kemali, and
L Vacca, and
F Marciano, and
T Celani, and
G Nolfe, and
G Iorio
June 1999,
Seminars in pediatric neurology,
D Kemali, and
L Vacca, and
F Marciano, and
T Celani, and
G Nolfe, and
G Iorio
January 1991,
European archives of psychiatry and clinical neuroscience,
D Kemali, and
L Vacca, and
F Marciano, and
T Celani, and
G Nolfe, and
G Iorio
April 1989,
The International journal of neuroscience,
D Kemali, and
L Vacca, and
F Marciano, and
T Celani, and
G Nolfe, and
G Iorio
February 1970,
Seishin shinkeigaku zasshi = Psychiatria et neurologia Japonica,
