Abstract:
:Gamma oscillations (>30 Hz) in the brain are involved in attention, perception and memory. They are altered in various pathological states, as well as by neuropharmaceuticals, so that they are of interest in drug and clinical investigations. However, when the human electroencephalogram is recorded on the scalp, this neural high-frequency signal is buried under a range of other electrical signals such that, without careful handling, recordings of the high-frequency electroencephalogram cannot be considered reliable. The artefacts of concern originate from: power line noise, saccade-associated contraction of the extra-ocular muscles, activity of muscles in the scalp, face and neck, screen refresh artefacts and activity of the muscles associated with blinking. Recent progress in dealing with these artefacts is described, including either noise cancellation or phased noise template subtraction for power line noise, regression or independent component analysis for correcting extra-ocular muscle activity and mathematical modelling for reducing scalp, face and neck muscle activity. If the artefacts are properly addressed, the neural gamma signal can be uncovered.
journal_name
Neuropsychobiologyjournal_title
Neuropsychobiologyauthors
Nottage JF,Horder Jdoi
10.1159/000382023subject
Has Abstractpub_date
2015-01-01 00:00:00pages
219-28issue
3-4eissn
0302-282Xissn
1423-0224pii
000382023journal_volume
72pub_type
杂志文章abstract:BACKGROUND:Disgust is a basic emotion that involves feelings of revulsion and withdrawal behavior from dangerous/infectious situations. Very little is known about the genetic basis of disgust sensitivity. The dopamine receptor D4 (DRD4) and catechol-O-methyltransferase (COMT) genes have been implicated in neuroticism-r...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000275822
更新日期:2010-01-01 00:00:00
abstract::In this study, we examined the effect of the 5-HT2A,C receptor agonist (+/-)-1-(2,5-dimethoxy-4-iodophenyl)-2-aminopropane (DOI) on locomotor activity and the head twitch response in rats by the repeated (twice daily for 4 days) subcutaneous administration of 0.9% saline (1 ml/kg) or (+/-)-3,4-Methylenedioxymethamphet...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000026474
更新日期:1998-01-01 00:00:00
abstract::The focus is on evaluating the relationships between early behavioural problems and biochemical variables at adult age and their significance for early criminality and violent behaviour in a life perspective. In the present study, using prospective longitudinal data, a sample of males with a history of early criminal ...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000087557
更新日期:2005-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000117483
更新日期:1975-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000063672
更新日期:2002-01-01 00:00:00
abstract::Ten closed head-injured patients and 10 matched control subjects participated in a study that examined quantitated EEG data during cognitive task performance. The head-injured patients performed significantly worse than controls on all four tasks and had significantly higher EEG amplitudes and amplitude variances. A d...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118471
更新日期:1988-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000071212
更新日期:2003-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000118340
更新日期:1987-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118131
更新日期:1984-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000070014
更新日期:2003-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000086174
更新日期:2005-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000219304
更新日期:2009-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000119397
更新日期:1997-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000129669
更新日期:2008-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118576
更新日期:1989-01-01 00:00:00
abstract::Time trends and periodic cycles in REM sleep eye movements were examined in 6 functional and 6 mongoloid adolescent retardates. Both groups of subjects showed approximately equal percentages of linear trends, quadratic trends, linear and quadratic trends, and absence of trend. The eye movement time-series were subject...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000117524
更新日期:1976-01-01 00:00:00
abstract::As low-dose amphetamine stimulation of locomotor activity in the rat depends upon a mesolimbic dopaminergic substrate, neuroleptic antagonism of this behavior has been suggested as a model for studying antipsychotic activity. Animals in the present study received 21 days of chronic treatment with 1.0 mg/kg amphetamine...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118442
更新日期:1988-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000119355
更新日期:1997-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000026639
更新日期:2000-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118568
更新日期:1989-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 临床试验,杂志文章
doi:10.1159/000486903
更新日期:2017-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000446918
更新日期:2016-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000098265
更新日期:2006-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000119440
更新日期:1990-01-01 00:00:00
abstract::Intermittent short-lived episodes of depression were examined in a group of 20 recurrent suicidal attempters without major depression, classified misleadingly as borderline personality disorders on DSM-IIIR, during careful prospective follow-up for between 4 and 6 months. The duration of depressions clustered tightly ...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118606
更新日期:1989-01-01 00:00:00
abstract::The performance on spatial and nonspatial associative learning tasks was tested in a sample of male drug-free DSM III-diagnosed schizophrenic patients and in a closely matched normal control group. Schizophrenics showed a worse performance on both versions of the task, but especially on the nonspatial one. A significa...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118337
更新日期:1987-01-01 00:00:00
abstract::1,927 outpatients were included by 392 general practitioners in an open study in order to evaluate the safety of tianeptine in the ambulatory treatment of depression. The results of 1,858 depressed patients without melancholia and psychotic features, fulfilling DSM III criteria of Major Depressive Episode or Dysthymic...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000118824
更新日期:1992-01-01 00:00:00
abstract::In contrast to the single-channel dimensional complexity, the global dimensional complexity is calculated from a multichannel EEG. The intention with the method is to measure the spatial distribution of information processing in the brain. The method seems to be of interest in psychopharmacological research, but the i...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000119171
更新日期:1995-01-01 00:00:00
abstract::Serum dopamine-beta-hydroxylase (DBH) levels were assessed in 150 depressed patients of both sexes, with a mean age of 44.0 +/- 12.3 (SD) years. Patients were divided into unipolars (n = 46), bipolars (n = 25), neurotic-reactive (n = 46) and unspecified (n = 38) i.e., those who did not fit into any of the previous cat...
journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000117963
更新日期:1983-01-01 00:00:00
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journal_title:Neuropsychobiology
pub_type: 杂志文章
doi:10.1159/000080956
更新日期:2004-01-01 00:00:00