ERP method can be used as an effective tool for identification of concealed information memory deficit and malingering. A growing body of research shows that people lie constantly, that deception is pervasive in everyday life. People lie for different reasons. The top reasons include avoiding punishment (as during criminal investigations) or obtaining financial compensation (in clinical settings). Malingering, for example, is one of the most common symptoms accompanying many psychological/neuropsychological conditions. In traumatic injury cases (like closed head injury) where monetary compensation can be claimed, the potential motivation to exaggerate memory deficit increases. Thus, it often becomes difficult to estimate actual memory deficit. Literature shows that estimates of malingering reach up to 50% for malingered psychological symptoms. Are there ways to reliably identify concealing information? An ERP-based memory deficit tests reveal a high level of resistance to the effects of concealing information and malingering compared to behavioral tests of memory. The workshop will demonstrate various ERP protocols for assessment of concealed information, memory deficit, and malingering. The participants will learn how to utilize such protocols in their clinical and forensic investigations, as well as in research. The workshop will also provide with a practical experience on calculating ERPs, analysing data, and creating reports.
ERP-based studies demonstrate high effectiveness to detect concealed information with the hit rates ranging from 92 to 100%.


 References

Allen, J., Movius, H.L.II. (2000). The objective assessment of amnesia in dissociative identity disorder using event-related potentials International Journal of Psychophysiology 38 Pp. 21-41

Brandt, J. (1988) Malingered amnesia. In: R. Rogers (Ed.), Clinical Assessment of Malingering and Deception, GuilfordPress, New York, Ny, pp. 65-83

Ellwanger J, Rosenfeld JP, Sweet JJ, Bhatt M.(1996). Detecting simulated amnesia for autobiographical and recently learned information using the P300 event-related potential. Int J. Psychophysiology. Aug-Sep; (1-2), Pp.9-23

Johnson, R., Jr. (1986). A triarchic model of P300 amplitude. Psychophysiology, 23 , 367-384.

Labkovsky E., Rosenfeld J.P. (2009). P300-based protocol (with acoustic stimuli) for assessing memory deficit, malingering, and deception in clinical and forensic settings. Psychophysiology. 46, s.1 Pp.141

Labkovsky, E., Rosenfeld, J.P. (2011). Memory deficit and malingering: An ERP-based assessment with a “Dual-Probe” Protocol and countermeasure use. Journal of Neurotherapy. Vol. 15-4, Pp. 436-7.

Rosenfeld JP, Labkovsky E. (2010). New P300-based protocol to detect concealed information: Resistance to mental countermeasures against only half the irrelevant stimuli and a possible ERP indicator of countermeasures. Psychophysiology. 47, Pp.1002–10

Rosenfeld, J. P. (2011). P300 in detecting concealed information. In B. Versuchere, G. Ben-Shakhar, & E. Meijer, (Eds.), Memory Detection: Theory and application of the Concealed Information Test (pp.63-89). Cambridge University Press.