The Effect of Distance on Moral Engagement: Event Related Potentials and Alpha Power are Sensitive to Perspective in a Virtual Shooting Task

Frontiers in Psychology
Kirsten PetrasBernadette M Jansma

Abstract

In a shooting video game we investigated whether increased distance reduces moral conflict. We measured and analyzed the event related potential (ERP), including the N2 component, which has previously been linked to cognitive conflict from competing decision tendencies. In a modified Go/No-go task designed to trigger moral conflict participants had to shoot suddenly appearing human like avatars in a virtual reality scene. The scene was seen either from an ego perspective with targets appearing directly in front of the participant or from a bird's view, where targets were seen from above and more distant. To control for low level visual features, we added a visually identical control condition, where the instruction to "shoot" was replaced by an instruction to "detect." ERP waveforms showed differences between the two tasks as early as in the N1 time-range, with higher N1 amplitudes for the close perspective in the "shoot" task. Additionally, we found that pre-stimulus alpha power was significantly decreased in the ego, compared to the bird's view only for the "shoot" but not for the "detect" task. In the N2 time window, we observed main amplitude effects for response (No-go > Go) and distance (ego > bird perspective) but no int...Continue Reading

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Citations

Jun 8, 2017·Frontiers in Human Neuroscience·Marc PalausDiego Redolar-Ripoll
Jan 28, 2021·The American Journal of Bioethics : AJOB·Gabriela PavariniIlina Singh
Dec 11, 2021·Frontiers in Physiology·Rhaíra Helena Caetano E Souza, Eduardo Lázaro Martins Naves

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Software Mentioned

BrainVision Analyzer
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Worldviz Vizard
Matlab
FieldTrip
BrainVision recorder

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