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The dynamics of group polarization

Proietti, Carlo LU (2017) Logic, Rationality, and Interaction In Logic, Rationality, and Interaction 10445 LNCS. p.195-208
Abstract

Exchange of arguments in a discussion often makes individuals more radical about their initial opinion. This phenomenon is known as Group-induced Attitude Polarization. A byproduct of it are bipolarization effects, where the distance between the attitudes of two groups of individuals increases after the discussion. This paper is a first attempt to analyse the building blocks of information exchange and information update that induce polarization. I use Argumentation Frameworks as a tool for encoding the information of agents in a debate relative to a given issue a. I then adapt a specific measure of the degree of acceptability of an opinion (Matt and Toni 2008). Changes in the degree of acceptability of a, prior and posterior to... (More)

Exchange of arguments in a discussion often makes individuals more radical about their initial opinion. This phenomenon is known as Group-induced Attitude Polarization. A byproduct of it are bipolarization effects, where the distance between the attitudes of two groups of individuals increases after the discussion. This paper is a first attempt to analyse the building blocks of information exchange and information update that induce polarization. I use Argumentation Frameworks as a tool for encoding the information of agents in a debate relative to a given issue a. I then adapt a specific measure of the degree of acceptability of an opinion (Matt and Toni 2008). Changes in the degree of acceptability of a, prior and posterior to information exchange, serve here as an indicator of polarization. I finally show that the way agents transmit and update information has a decisive impact on polarization and bipolarization.

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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Logic, Rationality, and Interaction
volume
10445 LNCS
pages
14 pages
publisher
Springer Verlag
conference name
Logic, Rationality, and Interaction
external identifiers
  • scopus:85029406914
ISSN
03029743
16113349
ISBN
9783319649993
DOI
language
English
LU publication?
yes
id
ef77fc98-fbe9-4ac6-822e-d9eaa0059872
date added to LUP
2017-10-04 09:06:14
date last changed
2018-05-29 12:20:08
@inproceedings{ef77fc98-fbe9-4ac6-822e-d9eaa0059872,
  abstract     = {<p>Exchange of arguments in a discussion often makes individuals more radical about their initial opinion. This phenomenon is known as Group-induced Attitude Polarization. A byproduct of it are bipolarization effects, where the distance between the attitudes of two groups of individuals increases after the discussion. This paper is a first attempt to analyse the building blocks of information exchange and information update that induce polarization. I use Argumentation Frameworks as a tool for encoding the information of agents in a debate relative to a given issue a. I then adapt a specific measure of the degree of acceptability of an opinion (Matt and Toni 2008). Changes in the degree of acceptability of a, prior and posterior to information exchange, serve here as an indicator of polarization. I finally show that the way agents transmit and update information has a decisive impact on polarization and bipolarization.</p>},
  author       = {Proietti, Carlo},
  booktitle    = {Logic, Rationality, and Interaction},
  isbn         = {9783319649993},
  issn         = {03029743},
  language     = {eng},
  pages        = {195--208},
  publisher    = {Springer Verlag},
  title        = {The dynamics of group polarization},
  url          = {http://dx.doi.org/},
  volume       = {10445 LNCS},
  year         = {2017},
}