Abstract:
:Everyday actions can be characterized by whether they are freely chosen or commanded by external stimuli, and whether they produce pleasant or unpleasant outcomes. To assess how these aspects of actions affect the sense of agency, we asked participants to perform freely selected or instructed key presses which could produce pleasant or unpleasant chords. We obtained estimates of the key press-chord intervals and ratings of the feeling of control (FoC) over the outcomes. Interval estimates were used to assess intentional binding-the perceived temporal attraction between actions and their outcomes. Results showed stronger binding and higher FoC ratings in the free compared to instructed condition. Additionally, FoC was stronger for pleasant compared to unpleasant outcomes, and for pleasant outcomes that were produced by freely selected compared to instructed actions. These results highlight the importance of free choice and outcome valence on the SoA. They also reveal how freedom of action selection and pleasantness of action-outcomes can interact to affect the FoC.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Barlas Z,Hockley WE,Obhi SSdoi
10.1007/s00221-017-5112-3subject
Has Abstractpub_date
2018-01-01 00:00:00pages
129-139issue
1eissn
0014-4819issn
1432-1106pii
10.1007/s00221-017-5112-3journal_volume
236pub_type
杂志文章abstract::The tendency to generate head movements during saccades varies from person to person. Head movement tendencies can be measured as subjects fixate sequences of illuminated targets, but the extent to which such measures reflect eye-head coupling during more natural behaviors is unknown. We quantified head movement tende...
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journal_title:Experimental brain research
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