Acute dissociation predicts rapid habituation of skin conductance responses to aversive auditory probes (original) (raw)
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Habituation of the electrodermal response – A biological correlate of resilience?
PLOS ONE
Current approaches to quantifying resilience make extensive use of self-reported data. Problematically, this type of scales is plagued by response distortions-both deliberate and unintentional, particularly in occupational populations. The aim of the current study was to develop an objective index of resilience. The study was conducted in 30 young healthy adults. Following completion of the Connor-Davidson Resilience Scale (CD-RISC) and Depression/Anxiety/Stress Scale (DASS), they were subjected to a series of 15 acoustic startle stimuli (95 dB, 50 ms) presented at random intervals, with respiration, skin conductance and ECG recorded. As expected, resilience (CD-RISC) significantly and negatively correlated with all three DASS subscales-Depression (r =-0.66, p<0.0001), Anxiety (r =-0.50, p<0.005) and Stress (r =-0.48, p<0.005). Acoustic stimuli consistently provoked transient skin conductance (SC) responses, with SC slopes indexing response habituation. This slope significantly and positively correlated with DASS-Depression (r = 0.59, p<0.005), DASS-Anxiety (r = 0.35, p<0.05) and DASS-Total (r = 0.50, p<0.005) scores, and negatively with resilience score (r =-0.47; p = 0.006), indicating that high-resilience individuals are characterized by steeper habituation slopes compared to low-resilience individuals. Our key finding of the connection between habituation of the skin conductance responses to repeated acoustic startle stimulus and resilience-related psychometric constructs suggests that response habituation paradigm has the potential to characterize important attributes of cognitive fitness and well-being-such as depression, anxiety and resilience. With steep negative slopes reflecting faster habituation, lower depression/anxiety and higher resilience, and slower or no habituation characterizing less resilient individuals, this protocol may offer a distortion-free method for objective assessment and monitoring of psychological resilience.
International Journal of Psychophysiology, 2006
CITATIONS 25 READS 83 5 authors, including: Some of the authors of this publication are also working on these related projects: searching for psychobiological factors for psychopathology View project Projet RISC: Evaluation of the need and of the search of internet information by cancer patients, by their close relatives, and by the medical staff: satisfaction and influence on medical decisions View project Chantal Martin-Soelch Université de Fribourg Abstract:
Skin conductance habituation in panic disorder patients
Biological Psychiatry, 1990
Skin conductance habituation was compared between 38 patients meeting DSM-111 criteria for Panic Disorder and 29 normal controls. Approximately half of each group was randomly assigned to be given 100 dB SPL tones and the other half 7.5 dB tones. All indices pointed to slowed habituation in patients' compared with normals: number of trials to response habituation, total number of responses, and slope of decline of skin conductance level. Patient-normal differences were not significantly larger for 100 dB than for 7.5 dB. in addition, patients compared with normals had more nonspecific fluctuations, higher skin conductance levels, and a shorter response latency to the first stimulus. Stepwise discriminant analyses classified patients and normals better in the 100 dB than in the 7.5 dB condition, and showed that the various skin conductance variables were largely redundant at the higher intensity.
Reliability of electrodermal habituation measures under two conditions of stimulus intensity
Journal of Research in Personality, 1976
The present study investigated test-retest reliability of habituation of the evoked skin conductance response. Subjects received 20 presentations of a MOO-Hz, 3-set tone at the same time of day on two separate occasions, separated by an interval of 97-160 days. Thirteen subjects received stimuli of 90 dB, while for 24 subjects, stimulus intensity was 70 dB. Interstimulus interval was 21 set for both groups. Both absolute rate of habituation and trials to criterion displayed moderate reliability, and the relationships between habituation measures and other aspects of electrodermal activity were in agreement with previous findings. Requests for reprints should be addressed to D. T. Siddle,
Emotional response in depersonalization: A systematic review of electrodermal activity studies
Journal of Affective Disorders, 2020
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Psychophysiology, 2009
Researchers examining skin conductance (SC) as a measure of aversive conditioning commonly separate the SC response into two components when the CS-UCS interval is sufficiently long. This convention drew from early theorists who described these components, the first-and second-interval responses, as measuring orienting and conditional responses, respectively. The present report critically examines this scoring method through a literature review and a secondary data analysis of a large-scale study of police and firefighter trainees that used a differential aversive conditioning procedure (n = 287). The task included habituation, acquisition, and extinction phases, with colored circles as the CSs and shocks as the UCS. Results do not support the convention of separating the SC response into first-and second-interval responses. It is recommended that SC response scores be derived from data obtained across the entire CS-UCS interval.
First Interval Skin Conductance Responses: Conditioned or Orienting Responses
Psychophysiology, 1977
This paper was concerned primarily with whether or not the first interval response in classical skin conductance conditioning can be interpreted as a response which occurs at least in part as a consequence of the pairing of, or contingency between, a conditioned stimulus and an unconditioned stimulus. Based on a context in which classical conditioning is seen strictly as a method of inquiry, not as a process, the problems of various control procedures were discussed. It was concluded that with a simple conditioning paradigm the data available to date are sufficiently confounded with differential habituation rates in control-experimental group comparisons that it is difficult to conclude with assurance that the first-interval response does reflect the contingency between the conditioned stimulus and the unconditioned stimulus. In spite of possible confounding factors, the data obtained in differential conditioning experiments permit the conclusion that the first interval response does reflect stimulus pairing.