No significant difference in electrodermal response
amplitudes between targets and nontargets was found.
The current experiment tests the effects of ISI variability and complete stimulus omission on the electrodermal response
with ISis in the order of 1 to 2 seconds rather than the 10 to 20 seconds of previous studies.
M= Means; SEM= Standard error of means; EDA_1 = First electrodermal response
; EDA_2 = Second electrodermal response
; RLL breast = Breast respiration line length; RLL_abd = Abdominal respiration line length; pHR = Phasic heart rate; FPWL = Finger pulse waveform length.
Comparison Electrodermal Response
1 Pleasantness-arousal-- Rise time (t = -3.068, p = .003) * pleasantness-relaxation Recovery t/2 (t = -3.714, p = .001) * 2 Unpleasantness-arousal-- Latency (t = 4.303, p = .003) * unpleasantness-relaxation Amplitude (t = -2.411, p = .027) Recovery t/2 (t = -2.347, p = .025) Peak area (t = -2.592, p = .014) 3 Pleasantness-relaxation-- Latency (t = 3.124, p = .004) * unpleasantness-relaxation Recovery t/2 (t = 3.548, p = .001) * Peak area (t = 2.757, p = .009) * 4 Pleasantness-arousal-- Recovery t/2 (t = -2.466, p = .019) unpleasantness-arousal 5 Pleasantness-relaxation-- unpleasantness-arousal 6 Pleasantness-arousal-- Latency (t = 3.237, p = .01) * unpleasantness-relaxation Note.
5 To measure electrodermal response
, the subject is fitted with small electrodes attached to a galvanometer, which monitors the electrical resistance of the skin while being exposed to test stimuli.
The objectives were (a) to see if an electrodermal DMILS response was similar to a sensory response and, if not, to see if there were any useful characteristics that could be used to identify the former and (b) to compare the electrodermal response
seen in DMILS with that seen in reaction to a weak magnetic field, allowing exploration of potential mechanisms or physiological response systems that might produce the observed DMILS effects.
Since Beloff's initial review, additional promising results have emerged from a series of studies which examined the autonomic detection of staring using the electrodermal response
(for reviews, see Braud, Sharer, & Andrews, 1993a; 1993b).
These changes in electrodermal responses
cannot presumably be equated to learning.
Hagerman, "Sensory-modulation disruption, electrodermal responses
, and functional behaviors," Developmental Medicine & Child Neurology, vol.
(23.) Gruzelier JH, Nicolaou T Connolly JF Peatfield RC, Davies PT Clifford-Rose F Laterality of pain in migraine distinguished by interictal rates of habituation of electrodermal responses
to visual and auditory stimuli.
Stimulus rise time, intensity and the elicitation of unconditioned cardiac and electrodermal responses
. Int J Psychophysiol.