Interference effects of choice on confidence: Quantum characteristics of evidence accumulation
Abstract
Most cognitive and neural decision-making models—owing to their roots in classical probability theory—assume that decisions are read out of a definite state of accumulated evidence. This assumption contradicts the view held by many behavioral scientists that decisions construct rather than reveal beliefs and preferences. We present a quantum random walk model of decision-making that treats judgments and decisions as a constructive measurement process, and we report the results of an experiment showing that making a decision changes subsequent distributions of confidence relative to when no decision is made. This finding provides strong empirical support for a parameter-free prediction of the quantum model.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 10, 2015
- Source ID
- 10.1073/pnas.1500688112
Entities
People
- Jerome Busemeyer
- Peter D Kvam
- Shuli Yu
- Timothy J. Pleskac
Organizations
- Air Force Office of Scientific Research
- Indiana University
- Max Planck Institute for Human Development
- Michigan State University
- National Science Foundation