Evidence map›Paper›PMID 23133414›Full record

ArticleFrontiers in neurorobotics2012

What is value-accumulated reward or evidence?

Karl Friston, Rick Adams, Read Montague

Abstract read
In one paragraph

Article in Frontiers in neurorobotics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Active inference on discrete state-spaces: A synthesis.Journal of mathematical psychology · 2020
    Review
  5. Article
  6. Article
  7. Article
  8. Generalised free energy and active inference.Biological cybernetics · 2019
    Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Deep temporal models and active inference.Neuroscience and biobehavioral reviews · 2018
    Article
  14. Article
  15. Deep temporal models and active inference.Neuroscience and biobehavioral reviews · 2017
    Review
  16. Active inference and learning.Neuroscience and biobehavioral reviews · 2016
    Review
  17. Article
  18. Value and reward based learning in neurorobots.Frontiers in neurorobotics · 2013
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Karl FristonWellcome Trust Centre for Neuroimaging, University College London London, UK.
Rick Adams
Read Montague

Funding

COMPUTATIONAL SUBSTRATES OF ADDICTION AND REWARDR01DA011723 · NIDA · VIRGINIA POLYTECHNIC INST AND ST UNIV · PI MONTAGUE, P READ · 1998 to 2013
$3.6M
NIDA NIH HHS R01 DA011723Wellcome Trust 088130
6 · The paper itself

Abstract

Why are you reading this abstract? In some sense, your answer will cast the exercise as valuable-but what is value? In what follows, we suggest that value is evidence or, more exactly, log Bayesian evidence. This implies that a sufficient explanation for valuable behavior is the accumulation of evidence for internal models of our world. This contrasts with normative models of optimal control and reinforcement learning, which assume the existence of a value function that explains behavior, where (somewhat tautologically) behavior maximizes value. In this paper, we consider an alternative formulation-active inference-that replaces policies in normative models with prior beliefs about the (future) states agents should occupy. This enables optimal behavior to be cast purely in terms of inference: where agents sample their sensorium to maximize the evidence for their generative model of hidden states in the world, and minimize their uncertainty about those states. Crucially, this formulation resolves the tautology inherent in normative models and allows one to consider how prior beliefs are themselves optimized in a hierarchical setting. We illustrate these points by showing that any optimal policy can be specified with prior beliefs in the context of Bayesian inference. We then show how these prior beliefs are themselves prescribed by an imperative to minimize uncertainty. This formulation explains the saccadic eye movements required to read this text and defines the value of the visual sensations you are soliciting.

Indexed as

active inferenceBayesianevidencefree energyselectionself-organizationsurprisevalue

Identifiers

PMID23133414
PMCPMC3487150

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.