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The Sense of Agency$
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Patrick Haggard and Baruch Eitam

Print publication date: 2015

Print ISBN-13: 9780190267278

Published to Oxford Scholarship Online: September 2015

DOI: 10.1093/acprof:oso/9780190267278.001.0001

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Comparators and Weightings

Comparators and Weightings

Neurocognitive Accounts of Agency

Chapter:
(p.289) 13 Comparators and Weightings
Source:
The Sense of Agency
Author(s):

Matthis Synofzik

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780190267278.003.0013

Research on the neurocognitive underpinnings and disruptions of the sense of agency has been greatly inspired by a simple computational account of agency: the comparator model. However, this account faces several shortcomings in explaining agency in healthy and neuropsychiatric subjects and in explaining the distinction between feelings (or experiences) of agency and judgments (or beliefs) of agency. This chapter suggests that integration of agency cues might be governed by a specific weighting mechanism, namely a weighting mechanism that follows the principles of optimal cue integration. According to this notion, internal action-related cues, external action-related cues, and action-independent cues are each constantly weighted according to their reliability in a given situation. Also prior information on one’s action is incorporated, probably along Bayesian principles. Such a process would provide the basis for a much more flexible and at the same time more robust mechanism than proposed by previous neurocognitive accounts of agency.

Keywords:   agency, comparator model, action, optimal cue integration, neuropsychiatry

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