Abstract:
:A method is described that accounts for multichannel brain field data (EEG) epochs, after transformation into the frequency domain, by a single oscillating dipole source in terms of phase angles. The method produces a potential distribution for each frequency point ('FFT dipole approximation'). These maps can be subjected to conventional equivalent dipole source fittings in terms of amplitudes. We studied the equivalent source locations for the different temporal EEG frequency bands (delta/theta/alpha) in 12 normal subjects during the collection of reports of spontaneous thoughts. Some of the thought reports were classed into two modes, 'visual imagery' and 'abstract', and the associated equivalent source locations during the 2 s immediately prior to these reports were computed. Different equivalent source locations were found for the different spectral components of the EEG, implying that different neural generator populations generate the different frequencies. Further, the different types of spontaneous thought, i.e. different modes of cortical functioning, were found to be associated with the activity of different neuronal generator sources that operated at the same frequency at different source locations.
journal_name
Physiol Measjournal_title
Physiological measurementauthors
Michel CM,Henggeler B,Brandeis D,Lehmann Ddoi
10.1088/0967-3334/14/4a/004subject
Has Abstractpub_date
1993-11-01 00:00:00pages
A21-6eissn
0967-3334issn
1361-6579journal_volume
14 Suppl 4Apub_type
杂志文章abstract::The measurement of the complex respiratory impedance at a high temporal resolution is described. The measurement of impedance is correlated with the breathing cycle using electrical transthoracic impedance. This allows the determination of the complex impedance at any fixed point in the respiratory cycle, which result...
journal_title:Physiological measurement
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journal_title:Physiological measurement
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abstract:OBJECTIVE:Predictive analytics monitoring that informs clinicians of the risk for failed extubation would help minimize both the duration of mechanical ventilation and the risk of emergency re-intubation in ICU patients. We hypothesized that dynamic monitoring of cardiorespiratory data, vital signs, and lab test result...
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doi:10.1088/0967-3334/32/6/002
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doi:10.1088/0967-3334/30/5/001
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journal_title:Physiological measurement
pub_type: 临床试验,杂志文章
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更新日期:1996-08-01 00:00:00
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journal_title:Physiological measurement
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更新日期:2008-01-01 00:00:00
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journal_title:Physiological measurement
pub_type: 临床试验,杂志文章
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journal_title:Physiological measurement
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doi:10.1088/1361-6579/ab9b67
更新日期:2020-08-11 00:00:00
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journal_title:Physiological measurement
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更新日期:2005-12-01 00:00:00
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更新日期:2002-08-01 00:00:00
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journal_title:Physiological measurement
pub_type: 杂志文章
doi:10.1088/0967-3334/16/4/003
更新日期:1995-11-01 00:00:00
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journal_title:Physiological measurement
pub_type: 杂志文章
doi:10.1088/0967-3334/37/4/544
更新日期:2016-04-01 00:00:00
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journal_title:Physiological measurement
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doi:10.1088/0967-3334/27/11/010
更新日期:2006-11-01 00:00:00
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更新日期:2014-04-01 00:00:00
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journal_title:Physiological measurement
pub_type: 杂志文章
doi:10.1088/0967-3334/29/7/008
更新日期:2008-07-01 00:00:00
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pub_type: 临床试验,杂志文章
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更新日期:2011-12-01 00:00:00
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更新日期:2008-02-01 00:00:00
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更新日期:2010-01-01 00:00:00
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更新日期:2019-07-01 00:00:00
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journal_title:Physiological measurement
pub_type: 杂志文章
doi:10.1088/0967-3334/32/1/007
更新日期:2011-01-01 00:00:00