Autoregressive analysis of flash evoked potentials in healthy preterm infants during sleep / 生理学报
Acta Physiologica Sinica
;
(6): 446-450, 2002.
Article
in Chinese
| WPRIM
| ID: wpr-318969
ABSTRACT
To interpret the flash evoked potential (FVEP) as dynamic high-order responses to natural and experimental stimulation in healthy preterm infants, waveform analysis of FVEP in 36 healthy preterm infants (postconceptional age 28~42 weeks) were performed using an autoregressive analysis. Based on the histogram of damping frequency of different component impulse response waveforms, the waveforms were divided into 4 groups group I (0 ~ <2 Hz), group II (2 ~ <6.5 Hz), group III (6.5 ~ <12.0 Hz) and group IV (12~25 Hz). The total power, power of component impulse responses (group I~IV), and damping time (group II~IV) changed significantly with increasing postconceptional age (P<0.01 or P<0.05). Identification of an impulse response component with dominant frequency which undergoes a well-identified change with age is considered to be a useful tool for discriminating between normal and abnormal changes in the FVEP with age in healthy preterm infants.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Physiology
/
Reaction Time
/
Sleep
/
Infant, Premature
/
Evoked Potentials, Visual
Limits:
Female
/
Humans
/
Male
/
Infant, Newborn
Language:
Chinese
Journal:
Acta Physiologica Sinica
Year:
2002
Type:
Article
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