
22
increasingly unable to distinguish between content that is synthetic and non-synthetic.10 While
academics, industry experts, and governments around the world are exploring several ways to
address the issue, one of the most discussed is labelling. Labelling is the addition of informative
tags to synthetic content (including deepfakes) that consumers can see or hear.11
Research has found many nuances to the eectiveness of labels. Some labels have been found to
be eective in reducing belief in false or misleading content and the sharing of such content
online.12 Additionally, some research indicates that labels have advantages over general awareness
campaigns. This is because these campaigns fail to improve consumers’ abilities to recognize
synthetic content and can even lead to skepticism about all media, including non-synthetic
media.13
However, many factors can influence a label’s eectiveness, and even well-designed labels may
sometimes result in only modest impacts relative to other types of interventions. See Labeling AI-
Generated Content: Promises, Perils, and Future Directions.
Furthermore, labels can even have negative, unintended consequences such as inappropriately
increasing trust in unlabelled content or failing to communicate the correct information as further
elaborated in the next section.
Considering these issues, it is important to weigh the pros and cons when thinking about
introducing synthetic media labels. Scientific research can shed light on labels’ challenges and
limitations as a strategy for addressing the potential misleading eects of synthetic media and
deepfakes. Below is a brief overview, prepared by the Competition Bureau’s Behavioural Insights
Unit, of three research-based considerations for synthetic media labels.
Three considerations for the use of labels
The following three considerations14 help illustrate some of the challenges of using synthetic media
labels and the possible limitations to their eectiveness that may be unavoidable.
10 Groh, M., Sankaranarayanan, A., Singh, N., Kim, D. Y., Lippman, A., & Picard, R. (2024). Human detection of
political speech deepfakes across transcripts, audio, and video. Nature Communications, 15(1), 7629.;
Köbis, N. C., Doležalová, B., & Soraperra, I. (2021). Fooled twice: People cannot detect deepfakes but think
they can. Iscience, 24(11).; Lewis, A., Vu, P., Duch, R. M., & Chowdhury, A. (2023). Deepfake detection with
and without content warnings. Royal Society Open Science, 10(11), 231214; Mai, K. T., Bray, S., Davies, T., &
Griin, L. D. (2023). Warning: Humans cannot reliably detect speech deepfakes. Plos One, 18(8), e0285333.
11 Bennet, M. (2023). Bennet Urges Digital Platforms and AI Developers to Label AI-Generated Content, Stop
the Spread of Misinformation.; Goujard, C. (2023, June 5). EU wants Google, Facebook to start labeling AI-
generated content. POLITICO.; Torres, R. (2023). U.S. Rep. Ritchie Torres Introduces Federal Legislation
Requiring Mandatory Disclaimer for Material Generated by Artificial Intelligence. Torres.
12 Martel, C., & Rand, D. G. (2023). Misinformation warning labels are widely eective: A review of warning
eects and their moderating features. Current Opinion in Psychology, 101710.; Martel, C., & Rand, D. G.
(2024). Fact-checker warning labels are eective even for those who distrust fact-checkers. Nature Human
Behaviour, 8 (10), 1957–1967.
13 Wittenberg, C., Epstein, Z., Berinsky, A. J., & Rand, D. G. (2024). Labeling AI-Generated Content: Promises,
Perils, and Future Directions.
14 Other challenges beyond the three considerations highlighted here remain. For example, the visibility and
timing of labels can also critically impact a label’s eicacy.