scholarly journals Covariations among fMRI, skin conductance, and behavioral data during processing of concealed information

2007 ◽  
Vol 28 (12) ◽  
pp. 1287-1301 ◽  
Author(s):  
Matthias Gamer ◽  
Thomas Bauermann ◽  
Peter Stoeter ◽  
Gerhard Vossel
Keyword(s):  
Skin Conductance ◽  
Behavioral Data ◽  
Concealed Information

Hide or Seek? Physiological Responses Reflect Both the Decision and the Attempt to Conceal Information

2019 ◽  
Vol 30 (10) ◽  
pp. 1424-1433 ◽  
Author(s):  
Nathalie klein Selle ◽  
Naama Agari ◽  
Gershon Ben-Shakhar
Keyword(s):  
Heart Rate ◽  
Skin Conductance ◽  
Physiological Response ◽  
Response Pattern ◽  
Physiological Responses ◽  
Concealed Information Test ◽  
Skin Conductance Responses ◽  
Within Subjects ◽  
Underlying Mechanisms ◽  
Concealed Information

The process of information concealment is more relevant than ever in this day and age. Using a modified concealed-information test (CIT), we aimed to unmask this process by investigating both the decision and the attempt to conceal information in 38 students. The attempt to conceal (vs. reveal) information induced a differential physiological response pattern within subjects—whereas skin conductance increased in both conditions, respiration and heart rate were suppressed only in the conceal condition—confirming the idea that these measures reflect different underlying mechanisms. The decision to conceal (vs. reveal) information induced enhanced anticipatory skin conductance responses. To our knowledge, this is the first study that observed such anticipatory responses in an information-concealment paradigm. Together, these findings imply that our physiological responses reflect, to some degree, both the decision and the attempt to conceal information. In addition to strengthening CIT theory, this knowledge sheds novel light on anticipatory responding in decision making.

scholarly journals Combining skin conductance and forced choice in the detection of concealed information

2007 ◽  
Vol 44 (5) ◽  
pp. 814-822 ◽  
Author(s):  
Ewout H. Meijer ◽  
Fren T. Y. Smulders ◽  
James E. Johnston ◽  
Harald L.G. J. Merckelbach
Keyword(s):  
Skin Conductance ◽  
Forced Choice ◽  
Concealed Information ◽  
Detection Of Concealed Information

Skin Conductance as an Indicator of Anticipated Concealed Knowledge

2008 ◽  
Vol 102 (3) ◽  
pp. 927-934
Author(s):  
Senqi Hu ◽  
Hsin-Yu Huang ◽  
Jamie L. McGovern ◽  
David A. Jacobs
Keyword(s):  
Skin Conductance ◽  
Skin Conductance Response ◽  
Response Pattern ◽  
Experimental Session ◽  
Psychological Process ◽  
Digit Number ◽  
Experimental Procedure ◽  
Computer Screen ◽  
Concealed Information

The present study investigated the effects of anticipation on skin conductance while participants were answering a set of questions which included one of concealed knowledge. Two experiments were conducted. In Exp. 1, 26 participants completed one experimental session. Each participant was asked to choose one two-digit number from 10 to 99 and was presented 19 other randomly generated two-digit numbers. The list of numbers was then presented to the participant on a computer screen, with a 60-sec. interval occurring every two questions. The participant-selected number was defined as the target question which was randomly placed within the 4th to 17th item of 20 questions stated as follows: “Is your selected number ____?” The participant was asked to answer “No” to all questions. The skin-conductance response to each question was measured. In Exp. 2, the experimental procedure was the same as that in Exp. 1 except each participant first answered 10 nontarget questions, then answered a target question with the participant's selected number, and then answered another 10 nontarget questions. There were a total of 21 questions. Analysis indicated participants in both experiments generated the highest mean skin conductance while answering the target questions, followed by lower amplitudes to questions prior to and after the target question. The skin-conductance response pattern can be used to identify the psychological process of anticipation of concealed information.

Memory detection with the Concealed Information Test: A meta analysis of skin conductance, respiration, heart rate, and P300 data

2014 ◽  
Vol 51 (9) ◽  
pp. 879-904 ◽  
Author(s):  
Ewout H. Meijer ◽  
Nathalie Klein Selle ◽  
Lotem Elber ◽  
Gershon Ben-Shakhar
Keyword(s):  
Heart Rate ◽  
Skin Conductance ◽  
Meta Analysis ◽  
Concealed Information Test ◽  
Concealed Information ◽  
Information Test

Skin Conductance and Subjective Arousal in Anxiety, Depression, and Comorbidity

2017 ◽  
Vol 31 (4) ◽  
pp. 145-157 ◽  
Author(s):  
Laina E. Rosebrock ◽  
Denada Hoxha ◽  
Catherine Norris ◽  
John T. Cacioppo ◽  
Jackie K. Gollan
Keyword(s):  
Skin Conductance ◽  
Comparison Group ◽  
Group Differences ◽  
Autonomic Arousal ◽  
Emotional Picture ◽  
Self Reports ◽  
Picture Viewing ◽  
Anxiety Depression ◽  
Subjective Arousal ◽  
Healthy Participants

Abstract. Skin conductance (SC), an autonomic arousal measure of the sympathetic nervous system, is a sensitive and useful index of physiological arousal. However, SC data does not always align with self-reports of arousal. SC, self-reported arousal, and their association, known as emotion coherence, may be altered with the presence of major psychiatric illness. This study investigated group differences on SC reactivity and self-reported arousal while viewing positive, negative, neutral, and threat images between participants diagnosed with major depression with and without anxiety disorders relative to a healthy comparison group. Additionally, the strength and direction of association between SC reactivity and arousal ratings (emotion coherence) was examined within groups. Unmedicated participants were recruited via online and paper advertisements around Chicago and categorized into one of four groups (Depressed: n = 35, Anxious: n = 44, Comorbid: n = 38, Healthy: n = 29). SC and affect ratings were collected during and after a standardized emotional picture viewing task. SC reactivity was significantly higher during threat images, regardless of group. During threat image presentation, increased SC reactivity occurred during the last few seconds before picture offset; for all other stimulus types, SC reactivity decreased significantly after picture offset. Anxious and comorbid participants rated emotional images as more arousing than healthy participants; there were no observed differences in arousal ratings between depressed and healthy participants. Heightened reactivity in anxiety may manifest in arousal ratings without corresponding increased SC reactivity to emotional images. Results do not suggest underlying altered psychophysiology in this sample of depressed or anxious participants.

Sign in / Sign up

Export Citation Format

Share Document