Using Triangulation to Characterize the Neurocomputational Basis of Simple Choice

Antonio Rangel and his team are trying to understand how the brain assigns value to various options when faced with a choice, identifying the regions of the brain that encode those decisions. They are also investigating how the workings of the decision-making system change in more complex forms of choice, such as decisions involving self-control or altruism.
The project, Using Triangulation to Characterize the Neurocomputational Basis of Simple Choice, aims to advance our understanding of the neurocomputational basis of very simple decisions, such as choosing between an apple and an orange, by comparing how rodents, monkeys and humans make these types of choices. The research is predicated on the idea that studying the same decision problem in different species will provide critical insights into how humans make simple and more complex decisions.
NOMIS researchers
About Antonio Rangel Antonio Rangel is a 2019 NOMIS awardee and has been Bing Professor of Neuroscience, Behavioral Biology, and Economics since 2013 and head faculty in residence at the California Institute of Technology (Caltech; Pasadena, US) since 2018. Born in Spain, Rangel earned a BS in economics from the Caltech in 1993, an MA […]
Bing Professor of Neuroscience, Behavioral Biology, and Economics, and Head Faculty in Residence
California Institute of Technology
Project Publications
Peripheral Visual Information Halves Attentional Choice Biases
A growing body of research has shown that simple choices involve the construction and comparison of values at the time of decision. These processes are modulated by attention in a way that leaves decision makers susceptible to attentional biases. Here, we studied the role of peripheral visual information on the choice process and on attentional choice biases. We used an eye-tracking experiment in which participants (N = 50 adults) made binary choices between food items that were displayed in marked screen “shelves” in two conditions: (a) where both items were displayed, and (b) where items were displayed only when participants fixated within their shelves. We found that removing the nonfixated option approximately doubled the size of the attentional biases. The results show that peripheral visual information is crucial in facilitating good decisions and suggest that individuals might be influenceable by settings in which only one item is shown at a time, such as e-commerce. © The Author(s) 2023.
Research Fields
Experimental Psychology, Health Sciences, Psychology & Cognitive Sciences
News
November 4, 2023
Peripheral visual information affects choice
NOMIS Awardee Antonio Rangel and colleagues have shown that peripheral visual information is crucial in facilitating good decisions and suggest that individuals might be influenceable by settings in which only one item is shown at a time, such as e-commerce. Their findings were published in Psychological Science. Researchers have known for some time that decision […]
October 11, 2019
Annual NOMIS Distinguished Scientist Award presented to three outstanding scientists
Recognizing their outstanding contributions to the advancement of science and human progress through their pioneering, innovative and collaborative research, the 2019 NOMIS Distinguished Scientist and Scholar Award was presented to Adriano Aguzzi, Janet Currie and Antonio Rangel at the Gottlieb-Duttweiler-Institute (GDI) in Rüschlikon, Switzerland on Oct. 10, 2019. The NOMIS Award is enabling their investigation […]
February 8, 2019
NOMIS Foundation announces recipients of 2019 Distinguished Scientist and Scholar Award
We are delighted to announce the three new recipients of the 2019 Distinguished Scientist and Scholar Award — congratulations to Adriano Aguzzi, Janet Currie and Antonio Rangel. Recognizing their outstanding contributions to the advancement of science and human progress through their pioneering, innovative and collaborative research, the NOMIS Award is enabling their continued investigation into […]