Abstract：
:A low-noise flexible system for the simultaneous recording and analysis of several electrical signals (EEG, ECG, EMG, and diaphragm EMG) from the same rat was constructed for studying changes in physiological functions during the sleep-wake cycle. The hardware in the system includes a multichannel amplifier, a video camera, a timer code generator, and a PC. A miniature buffer headstage with high-input impedance connected to a 6-channel amplifier was developed. All electrical activities devoid of 60 Hz interference could be consistently recorded by our low-cost amplifier with no shielding treatment. The analytical software was established in the LabVIEW environment and consisted of three major frames: temporal, spectral, and nonlinear analyses. These analytical tools demonstrated several distinct utilities. For example, the sleep-wake states could be successfully distinguished by combining temporal and spectral analyses. An obvious theta rhythm during rapid-eye-movement sleep (REMS) was recorded from parietal to occipital cortical areas but not from the frontal area. In addition, two types of sleep apnea with/without cardiac arrhythmias were observed under REMS condition. Moreover, the evoked potentials of the primary somatosensory cortex elicited by innocuous electrical pulses were modulated by vigilant states, especially under a slow-wave sleep state. These results show that our system delivers high-quality signals and is suitable for sleep investigations. The system can be easily expanded by combining other recording devices, like a plethysmograph. This compact system can also be easily modified and applied to other related physiological or pharmacological studies.
journal_name
J Neurosci Methodsjournal_title
Journal of neuroscience methodsauthors
Shaw FZ,Lai CJ,Chiu THdoi
10.1016/s0165-0270(02)00146-2subject
Has Abstractpub_date
2002-07-30 00:00:00pages
77-87issue
1eissn
0165-0270issn
1872-678Xpii
S0165027002001462journal_volume
118pub_type
杂志文章abstract：:Reverse correlation techniques provide a quantitative means of computing neuronal input/output relationships. Until now these methods have been limited to electrically recorded responses since unprocessed optical signals generally lack necessary temporal characteristics. We sought to overcome this barrier since combin...
journal_title：Journal of neuroscience methods
pub_type： 杂志文章
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journal_title：Journal of neuroscience methods
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journal_title：Journal of neuroscience methods
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更新日期：2015-05-15 00:00:00
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journal_title：Journal of neuroscience methods
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journal_title：Journal of neuroscience methods
pub_type： 杂志文章
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journal_title：Journal of neuroscience methods
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journal_title：Journal of neuroscience methods
pub_type： 杂志文章
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journal_title：Journal of neuroscience methods
pub_type： 杂志文章,评审
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journal_title：Journal of neuroscience methods
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