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Psychol Sci. 2010 Sep;21(9):1291-9. doi: 10.1177/0956797610379860. Epub 2010 Aug 5.

Observation inflation. Your actions become mine.

Author information

1
Department of Psychology, University of Cologne.

Abstract

Imagining performing an action can induce false memories of having actually performed it-this is referred to as the imagination-inflation effect. Drawing on research suggesting that action observation-like imagination-involves action simulation, and thus creates matching motor representations in observers, we examined whether false memories of self-performance can also result from merely observing another person's actions. In three experiments, participants observed actions, some of which they had not performed earlier, and took a source-memory test. Action observation robustly produced false memories of self-performance relative to control conditions. The demonstration of this effect, which we refer to as observation inflation, reveals a previously unknown source of false memories that is ubiquitous in everyday life. The effect persisted despite warnings or instructions to focus on self-performance cues given immediately before the test, and despite elimination of sensory overlap between performance and observation. The findings are not easily reconciled with a source-monitoring account but appear to fit an account invoking interpersonal motor simulation.

PMID:
20689054
DOI:
10.1177/0956797610379860
[Indexed for MEDLINE]

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