Abstract：
:The functional (i.e., kinematic) aspects of the blink reflex depend on the size of the integrated orbicularis oculi EMG response. Peak amplitude of smoothed rectified EMG is often used as an approximation of integrated EMG. A comparison was made between the outputs of 24 different smoothing filters, correlating peak amplitude of acoustic or electric blink reflexes with integrated EMG. The coefficient of determination (R2) was largest (i.e., ≥.95 for acoustic and ≥.90 for electric blink reflexes) when using either (1) a first-order resistor-capacitor filter with a time constant of 50 or 100 ms, (2) a boxcar filter averaging 51 or 101 data points, or (3) an unequal-weight finite impulse response filter with a cutoff frequency of 5 or 10 Hz. These filters are thus recommended when determining peak amplitude. Applying a baseline correction on peak amplitude and integrated EMG produced slightly smaller values of R2 compared with uncorrected measures.
journal_name
Biol Psycholjournal_title
Biological psychologyauthors
van Boxtel Adoi
10.1016/j.biopsycho.2010.07.017subject
Has Abstractpub_date
2010-10-01 00:00:00pages
299-305issue
2eissn
0301-0511issn
1873-6246pii
S0301-0511(10)00216-4journal_volume
85pub_type
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journal_title：Biological psychology
pub_type： 杂志文章,随机对照试验
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journal_title：Biological psychology
pub_type： 杂志文章
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