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Silvia De Marchi (1929) on numerical estimation: A translation and commentary
Marco Bertamini1, Andrea Bobbio1
1University of Padova, Italy.
Silvia De Marchi
Area of Science:
- Psychology
- Cognitive Science
- History of Science
Background:
- Vittorio Benussi's work on perception.
- Silvia De Marchi's research on numerosity estimation.
- Challenges for women in academia during the early 20th century.
Purpose of the Study:
- To introduce the work of Silvia De Marchi to an English-speaking audience.
- To translate and re-illustrate her 1929 article on numerosity perception.
- To highlight her original experimental approach and contributions to magnitude estimation.
Main Methods:
- Translation of De Marchi's 1929 Italian article.
- Redrawing of 23 illustrations and graphs from the original publication.
- Analysis of her experimental approach to numerosity estimation.
Main Results:
- De Marchi's study utilized an original experimental design to investigate numerosity perception.
- Her work anticipated later developments in the field of magnitude estimation.
- The translation and re-illustrations provide new accessibility to her research.
Conclusions:
- Silvia De Marchi made significant, yet underrecognized, contributions to the study of numerosity perception.
- Her research demonstrates an early, sophisticated understanding of magnitude estimation.
- This work underscores the historical challenges faced by women in scientific academia.
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