autonomic nervous system methods Flashcards
EDA definition and also known as
measuring skin potential/conductance, aka galvanic skin response GSR
what is measured using sweat gland activity
skin conductance EDA
is skin conductance or potential more effective
conductance is more effective, bc potential is only measuring general activity
two types of data and sublevels
event/stimulus related response= skin conductance or skin potential RESPONSE
longer recordings of tonic shifts/levels= skin conductance or skin potential LEVEL
why apply gel before EDA
gel conducts the electrical current better
what type of analyses requires minimum threshold value
event related
what kind of test is a lie detector test
EDA, assumes skin conductance rises when lying, untrue
ECG definition
measures electrical potential of heart beat
QRS complex
part of ECG reading where ventricles are depolarized
which peaks calculate heart rate
r peaks, HR is r-r
number of leads normally in ECG
3, positive, negative, neutral/ground
what is HRV
heart rate variability, the variability between R peaks
heart beat is more regular when…
HR is faster, SNS is active
cause of HRV bands .15-.4 Hz
high frequency bands, primary vagal PNS influence
less than .12 Hz HRV bands
low frequency, thought to be SNS
