### Abstract

In decision from experience, the source of probability information affects how probability is distorted in the decision task. Understanding how and why probability is distorted is a key issue in understanding the peculiar character of experience-based decision. We consider how probability information is used not just in decision-making but also in a wide variety of cognitive, perceptual, and motor tasks. Very similar patterns of distortion of probability/frequency information have been found in visual frequency estimation, frequency estimation based on memory, signal detection theory, and in the use of probability information in decision-making under risk and uncertainty. We show that distortion of probability in all cases is well captured as linear transformations of the log odds of frequency and/or probability, a model with a slope parameter, and an intercept parameter. We then consider how task and experience influence these two parameters and the resulting distortion of probability. We review how the probability distortions change in systematic ways with task and report three experiments on frequency distortion where the distortions change systematically in the same task. We found that the slope of frequency distortions decreases with the sample size, which is echoed by findings in decision from experience. We review previous models of the representation of uncertainty and find that none can account for the empirical findings.

Original language | English (US) |
---|---|

Article number | 1 |

Journal | Frontiers in Neuroscience |

Issue number | JAN |

DOIs | |

State | Published - 2012 |

### Fingerprint

### Keywords

- Decision-making
- Frequency estimation
- Log odds
- Probability distortion
- Subjective probability
- Uncertainty

### ASJC Scopus subject areas

- Neuroscience(all)

### Cite this

**Ubiquitous log odds : A common representation of probability and frequency distortion in perception, action, and cognition.** / Zhang, Hang; Maloney, Laurence.

Research output: Contribution to journal › Article

}

TY - JOUR

T1 - Ubiquitous log odds

T2 - A common representation of probability and frequency distortion in perception, action, and cognition

AU - Zhang, Hang

AU - Maloney, Laurence

PY - 2012

Y1 - 2012

N2 - In decision from experience, the source of probability information affects how probability is distorted in the decision task. Understanding how and why probability is distorted is a key issue in understanding the peculiar character of experience-based decision. We consider how probability information is used not just in decision-making but also in a wide variety of cognitive, perceptual, and motor tasks. Very similar patterns of distortion of probability/frequency information have been found in visual frequency estimation, frequency estimation based on memory, signal detection theory, and in the use of probability information in decision-making under risk and uncertainty. We show that distortion of probability in all cases is well captured as linear transformations of the log odds of frequency and/or probability, a model with a slope parameter, and an intercept parameter. We then consider how task and experience influence these two parameters and the resulting distortion of probability. We review how the probability distortions change in systematic ways with task and report three experiments on frequency distortion where the distortions change systematically in the same task. We found that the slope of frequency distortions decreases with the sample size, which is echoed by findings in decision from experience. We review previous models of the representation of uncertainty and find that none can account for the empirical findings.

AB - In decision from experience, the source of probability information affects how probability is distorted in the decision task. Understanding how and why probability is distorted is a key issue in understanding the peculiar character of experience-based decision. We consider how probability information is used not just in decision-making but also in a wide variety of cognitive, perceptual, and motor tasks. Very similar patterns of distortion of probability/frequency information have been found in visual frequency estimation, frequency estimation based on memory, signal detection theory, and in the use of probability information in decision-making under risk and uncertainty. We show that distortion of probability in all cases is well captured as linear transformations of the log odds of frequency and/or probability, a model with a slope parameter, and an intercept parameter. We then consider how task and experience influence these two parameters and the resulting distortion of probability. We review how the probability distortions change in systematic ways with task and report three experiments on frequency distortion where the distortions change systematically in the same task. We found that the slope of frequency distortions decreases with the sample size, which is echoed by findings in decision from experience. We review previous models of the representation of uncertainty and find that none can account for the empirical findings.

KW - Decision-making

KW - Frequency estimation

KW - Log odds

KW - Probability distortion

KW - Subjective probability

KW - Uncertainty

UR - http://www.scopus.com/inward/record.url?scp=84861862142&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84861862142&partnerID=8YFLogxK

U2 - 10.3389/fnins.2012.00001

DO - 10.3389/fnins.2012.00001

M3 - Article

JO - Frontiers in Neuroscience

JF - Frontiers in Neuroscience

SN - 1662-4548

IS - JAN

M1 - 1

ER -