Back to Search
Start Over
Electroencephalographic theta activity and cognition in schizophrenia: preliminary results
- Source :
- The world journal of biological psychiatry : the official journal of the World Federation of Societies of Biological Psychiatry. 16(3)
- Publication Year :
- 2014
-
Abstract
- MATRICS Consensus Cognitive Battery (MCCB) is a contemporary standard for assessment of cognitive functions in schizophrenia. The aim of the study was to examine the association between electroencephalographic spectral power and a wide range of cognitive functions measured with MCCB.Thirty-nine patients with schizophrenia (27 male, mean age 28.2 ± 5.2 years) underwent EEG recordings and were assessed with MCCB. The EEG recordings were visually inspected and manually cleaned from artifacts and subjected to spectral analysis with EEGlab. Absolute and relative power as percentage of total spectral power were computed for frequency ranges from 0.5 to 30 Hz. To compare spectral power in patients with various cognitive functioning, patients from best and worst MCCB quartiles were selected.Superior cognitive performance was associated with less power of theta waves. Six MCCB cognitive tests showed significant correlations with absolute theta power and three tests with relative theta power. The correlation coefficients between MCCB composite score and theta power were rp = -0.45 for absolute and rp = -0.36 for relative values. Increased theta power was linked especially to memory deficits.These preliminary results suggest that electroencephalographic resting state theta power is an indicator of cognitive deficit in patients with schizophrenia.
- Subjects :
- Adult
Male
medicine.medical_specialty
Electroencephalography
Audiology
Neuropsychological Tests
Developmental psychology
EEGLAB
Young Adult
Cognition
medicine
Humans
Cognitive skill
Effects of sleep deprivation on cognitive performance
Theta Rhythm
Biological Psychiatry
Psychiatric Status Rating Scales
medicine.diagnostic_test
medicine.disease
Cognitive test
Psychiatry and Mental health
Quartile
Schizophrenia
Female
Schizophrenic Psychology
Psychology
Cognition Disorders
Subjects
Details
- ISSN :
- 18141412
- Volume :
- 16
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- The world journal of biological psychiatry : the official journal of the World Federation of Societies of Biological Psychiatry
- Accession number :
- edsair.doi.dedup.....82c6bd866743cb24e33e27bd8fc16ccf