Comparison of Brazilian and American norms for the International Affective Picture System (IAPS)
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OBJECTIVE: The present article compares Brazilian and American norms for the International Affective Picture System (IAPS), a set of normative emotional photographic slides for experimental investigations. METHODS: Subjects were 1,062 Brazilian university students (364 men and 698 women) who rated 707 pictures from the IAPS in terms of pleasure, arousal, and dominance following the methodology of the original normative study in the US, enabling direct comparison of data from the two samples through Pearson product moment correlation and Student t test. RESULTS: All correlations were highly significant with the highest level for the pleasure dimension, followed by dominance and arousal. However, contrary to the American normative values, our data showed that Brazilian subjects generally assigned higher arousal ratings overall. CONCLUSION: Our findings confirm that this set of stimuli can be used in Brazil as an affective rating tool due to the high correlations found across the two populations, despite differences on the arousal dimension, which are discussed in detail.
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All target images had low levels of emotional valence and high levels of emotional arousal according to normative values for the city of São Paulo for IAPS images.
“All target images had low levels of emotional valence and high levels of emotional arousal (see Appendix), considering the normative values for the city of São Paulo23 for images from the International Affective Picture System (IAPS24).”
From Ventrolateral but not Dorsolateral Prefrontal Cortex tDCS effectively impact emotion reappraisal – effects on Emotional Experience and Interbeat Interval (2018) · cites this paper as [23]
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Measuring emotion: The self-assessment manikin and the semantic differential
Bradley, M. M., & Lang, P. J. (1994) · Journal of Behavior Therapy and Experimental Psychiatry · doi:10.1016/0005-7916(94)90063-9 · Cited by 9,538 · see citing works
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Marques, L. M., Morello, L. Y. N., & Boggio, P. S. (2018) · Scientific Reports · doi:10.1038/s41598-018-33711-5 · Cited by 59 · see citing works
Reaction time normative data for the IAPS as a function of display time, gender, and picture content
Calvo, M. G., & Avero, P. (2009) · Behavior Research Methods · doi:10.3758/brm.41.1.184 · Cited by 44 · see citing works
- Authors
- Ribeiro, R. L., Pompéia, S., & Bueno, O. F. A.
- Affiliations
- Universidade Federal de São Paulo (BR)
- Venue
- Revista Brasileira de Psiquiatria
- Publisher
- EDITORA SCIENTIFIC
- Published
- 2005-09
- Volume
- 27
- Issue
- 3
- Pages
- 208-215
- ISSN
- 1516-4446 (ISSN-L)
- OpenAlex
- W2150732269
- Cited by
- 101
- References
- 1
- Citations by year
- 2026: 2 · 2025: 1 · 2024: 4 · 2023: 4 · 2022: 5 · 2021: 9 · 2020: 3 · 2019: 5 · 2018: 4 · 2017: 6 · 2016: 9 · 2015: 6 · 2014: 8 · 2013: 9 · 2012: 2
- FWCI
- 3.90
- Type
- journal article
- Language
- en
- Open access
- diamond
- doi.org
- Licence
- cc-by-nc
- Locations
- Brazilian Journal of Psychiatry (publishedVersion, cc-by-nc)
- PubMed (publishedVersion)
- LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, other-oa)
- Americanae (AECID Library) (submittedVersion, cc-by-nc)
- Americanae (AECID Library) (submittedVersion, other-oa)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, other-oa)
- Funders
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Associação Fundo de Incentivo à Pesquisa
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Emotion and Mood Recognition
- Social Sciences › Psychology › Applied Psychology › Psychological Testing and Assessment
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
- Keywords
- International Affective Picture System, IAP, affective picture ratings, cross-cultural comparison, pleasure, arousal, dominance, emotional stimuli
- MeSH terms
- Adolescent, Adult, Affect, Arousal, Brazil, Cross-Cultural Comparison, Female, Humans, Male, Terminology as Topic, Pattern Recognition, Visual, Personality Assessment, Psychometrics, Sex Characteristics, United States, Linear Models, Recognition, Psychology
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