scholarly journals Discrimination between a critical item and a self-relevant item on the concealed information test: Using event-related brain potentials

2014 ◽  
Vol 78 (0) ◽  
pp. 1AM-1-058-1AM-1-058
Author(s):  
Aiko Hanayama ◽  
Shuichi Yamamoto ◽  
Yusuke Shibuya
Keyword(s):  
Critical Item ◽  
Concealed Information Test ◽  
Brain Potentials ◽  
Relevant Item ◽  
Concealed Information ◽  
Information Test

scholarly journals Addressing Selective Attrition in the Enhanced Response Time-Based Concealed Information Test: A Within-Subject Replication

2020 ◽  
Author(s):  
Gáspár Lukács
Keyword(s):  
Response Time ◽  
Original Version ◽  
Current Experiment ◽  
Concealed Information Test ◽  
Relevant Item ◽  
Subject Design ◽  
Large Enhancement ◽  
Concealed Information ◽  
Murder Weapon ◽  
Information Test

The response time‐based concealed information test can reveal when a person recognizes a relevant item among other, irrelevant items, based on comparatively slower responding. Thereby, if a person is concealing the knowledge about the relevance of this item (e.g., recognizing it as a murder weapon), this deception can be revealed. A recent study, conducted online and using a between‐subject design, introduced a significantly enhanced version by including additional items in the task. While this modified version outperformed the original version, it also resulted in a much higher rate of participant dropouts (i.e., participants leaving the experiment's website without completing the task). The grave implication is that the perceived enhancement is perhaps merely due to selective attrition. Therefore, the current experiment replicates the original one, but using a within‐subject design. The results show that there is a large enhancement even when selective attrition is prevented.

scholarly journals Speed Versus Accuracy Instructions in the Response Time Concealed Information Test

2021 ◽  
Author(s):  
Till Lubczyk ◽  
Gáspár Lukács ◽  
Ulrich Ansorge
Keyword(s):  
Response Time ◽  
Concealed Information Test ◽  
Relevant Item ◽  
Significant Difference ◽  
Accuracy Instruction ◽  
The Impact ◽  
Concealed Information ◽  
Murder Weapon ◽  
Information Test

The Response Time Concealed Information Test (RT-CIT) can reveal that a person recognizes a relevant item (probe) among other, irrelevant items, based on slower responding to the probe compared to the irrelevant items. Thereby, if this person is concealing knowledge about the relevance of this item (e.g., recognizing it as a murder weapon), this deception can be unveiled. In the present paper, we examined the impact of a speed versus accuracy instruction: Examinees (N = 235) were either presented with instructions emphasizing a focus on speed, with instructions emphasizing a focus on accuracy, or with no particular speed or accuracy instructions at all. We found that, although participants responded to the probe and the irrelevants marginally faster when they had received instructions emphasizing speed, there was no significant difference between RTs of the different experimental groups and crucially, no significant difference between the probe-irrelevant RT differences either. This means that such instructions are unlikely to benefit the RT-CIT, but it also suggests that related deliberate manipulation (focusing on speed on or accuracy) is unlikely to decrease the efficiency of the RT-CIT – contributing further evidence to the RT-CIT’s resistance to faking.

scholarly journals Speed versus accuracy instructions in the response time concealed information test

2022 ◽  
Vol 7 (1) ◽  
Author(s):  
Till Lubczyk ◽  
Gáspár Lukács ◽  
Ulrich Ansorge
Keyword(s):  
Response Time ◽  
Concealed Information Test ◽  
Relevant Item ◽  
Significant Difference ◽  
Accuracy Instruction ◽  
The Impact ◽  
Concealed Information ◽  
Murder Weapon ◽  
Information Test

AbstractThe response time concealed information test (RT-CIT) can reveal that a person recognizes a relevant item (probe) among other, irrelevant items, based on slower responding to the probe compared to the irrelevant items. Thereby, if this person is concealing knowledge about the relevance of this item (e.g., recognizing it as a murder weapon), this deception can be unveiled. In the present paper, we examined the impact of a speed versus accuracy instruction: Examinees (N = 235) were either presented with instructions emphasizing a focus on speed, with instructions emphasizing a focus on accuracy, or with no particular speed or accuracy instructions at all. We found that although participants responded to the probe and the irrelevants marginally faster when they had received instructions emphasizing speed, there was no significant difference between RTs of the different experimental groups and crucially no significant difference between the probe–irrelevant RT differences either. This means that such instructions are unlikely to benefit the RT-CIT, but it also suggests that related deliberate manipulation (focusing on speed on or accuracy) is unlikely to decrease the efficiency of the RT-CIT—contributing further evidence to the RT-CIT’s resistance to faking.

Event-related brain potentials during the standard autonomic-based concealed information test

2009 ◽  
Vol 74 (1) ◽  
pp. 58-68 ◽  
Author(s):  
Izumi Matsuda ◽  
Hiroshi Nittono ◽  
Akihisa Hirota ◽  
Tokihiro Ogawa ◽  
Noriyoshi Takasawa
Keyword(s):  
Concealed Information Test ◽  
Brain Potentials ◽  
Concealed Information ◽  
Information Test
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