New analysis of human portraits reveals shift in culture, cognition

New analysis of human portraits reveals shift in culture, cognition
The portrait on the left (Adrian Brouwer, 1630) is an example of a composition with the sitter centered. On the right, a portrait by Pierre Auguste Renoir (1905) shows the forward bias, with more free space in front of the sitter than behind her. The study showed this type of spatial composition increased over time. Credit: Helena Miton

Throughout history, portraits featuring the human profile have evolved to reflect changing cultural norms. A new study led by Helena Miton, a Santa Fe Institute Omidyar Fellow, and co-authored by Dan Sperber of Central European University and Mikołaj Hernik, of UiT the Artic University of Norway, shows that human cognition plays a critical role in the evolution of human portraiture.

"These cause greater spontaneous attention to what is in front of—rather than behind—a subject, Miton says. "Scenes with more space in front of a directed object are both produced more often and judged as more esthetically pleasant. This leads to the prediction that, in profile-oriented human portraits, compositions with more space in front of depicted subjects (a 'forward bias') should be over-represented."

To test their prediction, the research team looked at 1831 paintings by 582 unique European painters from the 15th to the 20th century. They not only found evidence that this forward bias—where painters put more open space in front of their sitters than behind them—was widespread, they also found evidence that the bias became stronger when of spatial favoring centering became less stringent.

In the accompanying image, the on the left (Adrian Brouwer, 1630) is an example of a composition with the sitter centered. On the right, a portrait by Pierre Auguste Renoir (1905) shows the forward bias, with more free space in front of the sitter than behind her. The study showed this type of spatial composition increased over time.

"Culture and cognition are two interacting domains," Miton explains. "With most cultural phenomena, you're going to have some kind of influence from cognition. Our idea is to work out how we identify these factors and how we work with that type of causality."

The research team identified cultural norms that favored centering portraits, especially in the earlier periods. These preferences clearly loosened over time, resulting in more diverse portrait composition.

The widespread presence of a forward bias was robust. Previous studies found some evidence of a forward bias in the production of a handful of painters, but these results suggest that this in spatial composition was widespread—particularly remarkable since it goes against a cultural norm that favors centering sitters.

According to Miton, this research approach can be extended to quantify in a more general way (and with a more general painting data set) how much artistic norms loosen and how much variation increases over time. Beyond the art world, the approach can also look at the role cognition plays in other cultural phenomena, from writing systems to medical practices.


Explore further

Researcher uses music sampling to study cultural conformity bias

More information: Helena Miton et al, A Forward Bias in Human Profile‐Oriented Portraits, Cognitive Science (2020). DOI: 10.1111/cogs.12866
Journal information: Cognitive Science

Provided by Santa Fe Institute
Citation: New analysis of human portraits reveals shift in culture, cognition (2020, June 15) retrieved 3 August 2020 from https://phys.org/news/2020-06-analysis-human-portraits-reveals-shift.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
171 shares

Feedback to editors

User comments