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Memory detection using fMRI - Does the encoding context matter?

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Memory detection using fMRI - Does the encoding context matter? / Peth, Judith; Sommer-Blöchl, Tobias; Hebart, Martin N; Vossel, Gerhard; Büchel, Christian; Gamer, Matthias.

in: NEUROIMAGE, Jahrgang 113, 06.2015, S. 164-174.

Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung

Harvard

Peth, J, Sommer-Blöchl, T, Hebart, MN, Vossel, G, Büchel, C & Gamer, M 2015, 'Memory detection using fMRI - Does the encoding context matter?', NEUROIMAGE, Jg. 113, S. 164-174. https://doi.org/10.1016/j.neuroimage.2015.03.051

APA

Peth, J., Sommer-Blöchl, T., Hebart, M. N., Vossel, G., Büchel, C., & Gamer, M. (2015). Memory detection using fMRI - Does the encoding context matter? NEUROIMAGE, 113, 164-174. https://doi.org/10.1016/j.neuroimage.2015.03.051

Vancouver

Peth J, Sommer-Blöchl T, Hebart MN, Vossel G, Büchel C, Gamer M. Memory detection using fMRI - Does the encoding context matter? NEUROIMAGE. 2015 Jun;113:164-174. https://doi.org/10.1016/j.neuroimage.2015.03.051

Bibtex

@article{bae203cfb1844f83b602f0d8fbf3b317,
title = "Memory detection using fMRI - Does the encoding context matter?",
abstract = "Recent research revealed that the presentation of crime related details during the Concealed Information Test (CIT) reliably activates a network of bilateral inferior frontal, right medial frontal and right temporal-parietal brain regions. However, the ecological validity of these findings as well as the influence of the encoding context are still unclear. To tackle these questions, three different groups of subjects participated in the current study. Two groups of guilty subjects encoded critical details either only by planning (guilty intention group) or by really enacting (guilty action group) a complex, realistic mock crime. In addition, a group of informed innocent subjects encoded half of the relevant details in a neutral context. Univariate analyses showed robust activation differences between known relevant compared to neutral details in the previously identified ventral frontal-parietal network with no differences between experimental groups. Moreover, validity estimates for average changes in neural activity were similar between groups when focusing on the known details and did not differ substantially from the validity of electrodermal recordings. Additional multivariate analyses provided evidence for differential patterns of activity in the ventral fronto-parietal network between the guilty action and the informed innocent group and yielded higher validity coefficients for the detection of crime related knowledge when relying on whole brain data. Together, these findings demonstrate that an fMRI-based CIT enables the accurate detection of concealed crime related memories, largely independent of encoding context. On the one hand, this indicates that even persons who planned a (mock) crime could be validly identified as having specific crime related knowledge. On the other hand, innocents with such knowledge have a high risk of failing the test, at least when considering univariate changes of neural activation.",
author = "Judith Peth and Tobias Sommer-Bl{\"o}chl and Hebart, {Martin N} and Gerhard Vossel and Christian B{\"u}chel and Matthias Gamer",
note = "Copyright {\textcopyright} 2015 Elsevier Inc. All rights reserved.",
year = "2015",
month = jun,
doi = "10.1016/j.neuroimage.2015.03.051",
language = "English",
volume = "113",
pages = "164--174",
journal = "NEUROIMAGE",
issn = "1053-8119",
publisher = "Academic Press",

}

RIS

TY - JOUR

T1 - Memory detection using fMRI - Does the encoding context matter?

AU - Peth, Judith

AU - Sommer-Blöchl, Tobias

AU - Hebart, Martin N

AU - Vossel, Gerhard

AU - Büchel, Christian

AU - Gamer, Matthias

N1 - Copyright © 2015 Elsevier Inc. All rights reserved.

PY - 2015/6

Y1 - 2015/6

N2 - Recent research revealed that the presentation of crime related details during the Concealed Information Test (CIT) reliably activates a network of bilateral inferior frontal, right medial frontal and right temporal-parietal brain regions. However, the ecological validity of these findings as well as the influence of the encoding context are still unclear. To tackle these questions, three different groups of subjects participated in the current study. Two groups of guilty subjects encoded critical details either only by planning (guilty intention group) or by really enacting (guilty action group) a complex, realistic mock crime. In addition, a group of informed innocent subjects encoded half of the relevant details in a neutral context. Univariate analyses showed robust activation differences between known relevant compared to neutral details in the previously identified ventral frontal-parietal network with no differences between experimental groups. Moreover, validity estimates for average changes in neural activity were similar between groups when focusing on the known details and did not differ substantially from the validity of electrodermal recordings. Additional multivariate analyses provided evidence for differential patterns of activity in the ventral fronto-parietal network between the guilty action and the informed innocent group and yielded higher validity coefficients for the detection of crime related knowledge when relying on whole brain data. Together, these findings demonstrate that an fMRI-based CIT enables the accurate detection of concealed crime related memories, largely independent of encoding context. On the one hand, this indicates that even persons who planned a (mock) crime could be validly identified as having specific crime related knowledge. On the other hand, innocents with such knowledge have a high risk of failing the test, at least when considering univariate changes of neural activation.

AB - Recent research revealed that the presentation of crime related details during the Concealed Information Test (CIT) reliably activates a network of bilateral inferior frontal, right medial frontal and right temporal-parietal brain regions. However, the ecological validity of these findings as well as the influence of the encoding context are still unclear. To tackle these questions, three different groups of subjects participated in the current study. Two groups of guilty subjects encoded critical details either only by planning (guilty intention group) or by really enacting (guilty action group) a complex, realistic mock crime. In addition, a group of informed innocent subjects encoded half of the relevant details in a neutral context. Univariate analyses showed robust activation differences between known relevant compared to neutral details in the previously identified ventral frontal-parietal network with no differences between experimental groups. Moreover, validity estimates for average changes in neural activity were similar between groups when focusing on the known details and did not differ substantially from the validity of electrodermal recordings. Additional multivariate analyses provided evidence for differential patterns of activity in the ventral fronto-parietal network between the guilty action and the informed innocent group and yielded higher validity coefficients for the detection of crime related knowledge when relying on whole brain data. Together, these findings demonstrate that an fMRI-based CIT enables the accurate detection of concealed crime related memories, largely independent of encoding context. On the one hand, this indicates that even persons who planned a (mock) crime could be validly identified as having specific crime related knowledge. On the other hand, innocents with such knowledge have a high risk of failing the test, at least when considering univariate changes of neural activation.

U2 - 10.1016/j.neuroimage.2015.03.051

DO - 10.1016/j.neuroimage.2015.03.051

M3 - SCORING: Journal article

C2 - 25819306

VL - 113

SP - 164

EP - 174

JO - NEUROIMAGE

JF - NEUROIMAGE

SN - 1053-8119

ER -