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Related Experiment Video

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Task Interruption and Resumption Paradigm for Testing the Activation and Pursuit of an Abstract Thinking Goal

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Published on: April 18, 2017

An interfering Go/No-go task does not affect accuracy in a Concealed Information Test.

Wolfgang Ambach¹, Rudolf Stark, Martin Peper

¹Institute for Frontier Areas of Psychology and Mental Health, Freiburg, Germany. ambach@igpp.de

International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology

|January 9, 2008

Summary

Performing a Go/No-go task alongside the Concealed Information Test (CIT) did not affect the detection of concealed information using physiological measures. The parallel task did not interfere with deception detection during the CIT.

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Area of Science:

Psychology
Forensic Science
Cognitive Neuroscience

Background:

Response inhibition is theorized to be crucial for concealing information.
The Concealed Information Test (CIT) relies on physiological responses to detect hidden knowledge.
Investigating cognitive interference during deception detection is essential for understanding CIT validity.

Purpose of the Study:

To examine how a concurrent Go/No-go task impacts the detectability of concealed information during a CIT.
To assess the influence of interfering mental activity on physiological measures of deception.

Main Methods:

A mock-crime experiment involving 40 undergraduates.
Simultaneous administration of the CIT and a Go/No-go task.
Measurement of electrodermal activity (EDA), respiration line length (RLL), heart rate (HR), and finger pulse waveform length (FPWL).
Recording of reaction times for both tasks.
Comparison with a control condition using only the CIT.

Main Results:

No significant differences were found in the mean physiological measures between probe and irrelevant items when the Go/No-go task was performed concurrently.
The Go/No-go task did not enhance or impede the detection of concealed information.
No interaction was observed between the parallel task and deception sub-processes.

Conclusions:

A concurrent Go/No-go task, inducing tonic mental activity, does not appear to interfere with the physiological detection of concealed information in the CIT.
The findings suggest that response inhibition tasks may not significantly alter differential responding in the CIT.
Further research is needed to explore the effects of different types of parallel tasks on CIT effectiveness.