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Violated Expectations in the Cyberball Paradigm: Testing the Expectancy Account of Social Participation With ERP.

ABSTRACT: Previous social exclusion experiments identified two factors affecting the participants' evaluation of participation in a virtual ball tossing game (cyberball): ball reception probability and vertical position of the participant's avatar on the screen. The P3 component in the event-related brain potentials (ERPs) indicated that both factors moderate subjective expectancies on social participation. The present research builds on an expectancy model explaining these effects and tests whether its predictions - established in a within-participant design - also hold in a between-participant design more common in behavioral cyberball studies. Participants were randomly assigned to four conditions which differed in ball reception probability (16% vs. 26%) and the avatar's vertical position (inferior vs. superior). To track the state of expectancy of involvement online, we recorded the ERP response evoked by ball receptions of the participant. Retrospectively, social involvement and social need threat were rated in a questionnaire. As hypothesized, low ball reception probability elicited enlarged P3 amplitudes in the ERPs, increased negative mood, and threatened social needs. For participants at inferior position, ERP and questionnaire effects were less expressed. This effect of verticality can be traced back to an adjustment in the expected involvement as signaled by a differential adaptation of the P3 amplitude within an experimental run. These results confirm that the predictions of an expectancy model also apply to cyberball studies using a between-participant design. However, the comparison with the results of previous within-participant design studies suggests that the sensitivity of the adjustment processes critically depends on the choice of the experimental design.

SUBMITTER: Schuck K

PROVIDER: S-EPMC6167485 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Violated Expectations in the Cyberball Paradigm: Testing the Expectancy Account of Social Participation With ERP.

Schuck Katharina K Niedeggen Michael M Kerschreiter Rudolf R

Frontiers in psychology 20180925

Previous social exclusion experiments identified two factors affecting the participants' evaluation of participation in a virtual ball tossing game (cyberball): ball reception probability and vertical position of the participant's avatar on the screen. The P3 component in the event-related brain potentials (ERPs) indicated that both factors moderate subjective expectancies on social participation. The present research builds on an expectancy model explaining these effects and tests whether its p ...[more]

PMID: 30319487

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Project description:Personal control relies on the expectation that events are contingent upon one's own behavior. A common 'inconsistency compensation approach' posits that a violation of expectancies in social interaction triggers aversive arousal and compensatory effort. Following this approach, we tested the hypothesis that interventions affecting participants' decisions violate the expected personal control. In a modified version of the established cyberball paradigm, participants were not excluded, but consistently included. However, their decisions regarding the recipient of a ball throw in the virtual game were occasionally overruled (expectancy violation). We hypothesized that this intervention will trigger a P3 response in event-related brain potentials (ERP). Since this component is related to subjective expectancies, its amplitude was assumed to depend on the frequency of interventions (independent factor: loss of control). Further, we manipulated the vertical position of the participants' avatar on the computer screen (independent factor: verticality). Building on research showing that verticality is related to the self-assigned power and influences the expected level of control, we hypothesized that the ERP effects of intervention should be more pronounced for participants with avatars in superior position. As predicted, both experimental factors interactively affected the expression of the ERP response: In case of low intervention frequency, P3 amplitudes were significantly pronounced if the participants' avatar was positioned above as compared to below co-players (high > low self-assigned power). The effect of verticality could be traced back to a lack of adaptation of P3 amplitudes to recurring aversive events. By demonstrating that loss of control triggers ERP effects corresponding to those triggered by social exclusion, this study provides further evidence for a common cognitive mechanism in reactions to aversive events based on an inconsistency in expectancy states.

Project description:ObjectiveThe Keele Assessment of Participation (KAP) questionnaire measures person-perceived participation in 11 aspects of life. Participation allows fulfilment of valued life activities and social roles, which are important to older adults. Since we aimed to use the KAP in a larger Dutch cohort, we examined the measurement properties of KAP in a Dutch sample of older adults with joint pain and comorbidity.DesignCohort study.SettingA community-based sample in Amsterdam, the Netherlands and North Staffordshire, UK.ParticipantsParticipants were aged 65 years and over, had at least two chronic diseases (identified through general practice consultation) and reported joint pain on most days (questionnaire). The Dutch cohort provided baseline data (n=407), follow-up data at 6 months (n=364) and test-retest data 2 weeks after 6 months (n=122). The UK cohort provided comparable data (n=404).Outcome measuresThe primary outcome was person-perceived participation, as measured with the KAP. The measurement properties examined were the following: structural validity (factor analysis), internal consistency (Cronbach's ?), reliability (intraclass correlation coefficients; ICC), construct validity (hypothesis testing), responsiveness (hypothesis testing and area under the curve) and cross-cultural validity (differential item functioning; DIF).ResultsFactor analysis revealed two domains: KAPd1: 'participation in basic activities' and KAPd2: 'participation in complex activities', with Cronbach's ? of 0.74 and 0.57 and moderate test-retest reliability: ICC of 0.63 and 0.57, respectively. Further analyses of KAPd1 showed poor construct validity and responsiveness. Despite the uniform DIF in item 'interpersonal relations', the total KAPd1 score seemed comparable between the Dutch and UK sample.ConclusionsOnly KAP domain 'participation in basic activities' showed good internal consistency and sufficient reliability. KAPd2 lacks sufficient measurement properties for application in studies, although items may be used as single items. Further development of the concept 'participation' may help the development and validation of instruments to measure participation.

Dataset Information

Violated Expectations in the Cyberball Paradigm: Testing the Expectancy Account of Social Participation With ERP.

Publications

Violated Expectations in the Cyberball Paradigm: Testing the Expectancy Account of Social Participation With ERP.

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