کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6262896 1613815 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Research ReportERP effects and perceived exclusion in the Cyberball paradigm: Correlates of expectancy violation?
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
Research ReportERP effects and perceived exclusion in the Cyberball paradigm: Correlates of expectancy violation?
چکیده انگلیسی


- Social exclusion was induced by reducing ball reception in Cyberball.
- Reduced probability was counterbalanced by increasing the number of co-players.
- Adjusting subjective expectancy for involvement reduced perceived exclusion.
- Correspondingly, P3b effects were not observed if subjective expectancy was adjusted.
- The P3b is not part of an exclusion-specific neural alarm system.

A virtual ball-tossing game called Cyberball has allowed the identification of neural structures involved in the processing of social exclusion by using neurocognitive methods. However, there is still an ongoing debate if structures involved are either pain- or exclusion-specific or part of a broader network. In electrophysiological Cyberball studies we have shown that the P3b component is sensitive to exclusion manipulations, possibly modulated by the probability of ball possession of the participant (event “self”) or the presumed co-players (event “other”). Since it is known from oddball studies that the P3b is not only modulated by the objective probability of an event, but also by subjective expectancy, we independently manipulated the probability of the events “self” and “other” and the expectancy for these events. Questionnaire data indicate that social need threat is only induced when the expectancy for involvement in the ball-tossing game is violated. Similarly, the P3b amplitude of both “self” and “other” events was a correlate of expectancy violation. We conclude that both the subjective report of exclusion and the P3b effect induced in the Cyberball paradigm are primarily based on a cognitive process sensitive to expectancy violations, and that the P3b is not related to the activation of an exclusion-specific neural alarm system.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain Research - Volume 1624, 22 October 2015, Pages 265-274
نویسندگان
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