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Interhemispheric communication and the preference for attitude consistent information.

Christopher L Thomas¹, Alex M Bourdeau², Michael J Tagler³

¹a School of Education , University of Texas at Tyler , Tyler , Texas , USA.

|September 11, 2018

Summary

This study reveals that faster communication between brain hemispheres is linked to seeking information that confirms existing beliefs. This suggests right hemisphere functions may aid in managing conflicting information and reducing cognitive dissonance.

Keywords:

Interhemispheric communication Poffenberger paradigm cognitive dissonance theory selective exposure

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Area of Science:

Cognitive Psychology
Neuroscience
Social Psychology

Background:

Selective exposure to information is a common cognitive bias.
Attitude strength influences information processing and decision-making.
Interhemispheric communication plays a role in various cognitive functions.

Purpose of the Study:

To investigate the relationship between interhemispheric communication and selective exposure to information.
To examine the influence of attitude strength on information search tendencies.
To explore the role of specific hemispheric processes in cognitive consistency.

Main Methods:

A study involving 241 participants who reported their attitudes and attitude strength.
Participants completed a selective exposure task and the Poffenberger paradigm.
Behavioral data on information preference and interhemispheric transfer speed were collected.

Main Results:

Participants showed a moderate preference for attitude-consistent information (d = 0.50).
Attitude strength significantly predicted information search behavior.
Faster right-to-left interhemispheric transfer correlated with a greater preference for attitude-consistent information.

Conclusions:

Interhemispheric communication, particularly right-hemispheric activity, may be involved in detecting cognitive inconsistency.
Right hemispheric processes might facilitate dissonance reduction strategies.
Findings suggest a neural basis for selective exposure and attitude maintenance.