Social Self-Regulation and Feedback Related Negativity (FRN)
Date
2013
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Haverford College. Department of Psychology
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Thesis
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eng
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Open Access
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Abstract
The Error Monitoring System is a proposed reaction in the anterior cingulate cortex to errors that can be seen as a negative-going peak (error-related negativity, or ERN). An ERN has been seen in the context of feedback that indicates an error in tasks where the mistake is not obvious (feedback-related negativity). A study by Kim, Liss, Rao, Singer, and Compton, (2012) demonstrated an FRN in response to error feedback on a social task of rating faces on attractiveness. This showed an FRN in a social context where there is no objective right or wrong answer. The current study aimed to expand on that paradigm by looking at whether participants responded to social feedback more strongly than non-social (symbolic) feedback in the context of a social task. Participants rated neutral faces and voice clips for trustworthiness and received feedback indicating they chose similarly to their peers or differently. There were three types of feedback: face, voice, and symbol with a positive or negative valence: a happy or disgusted face or voice clip, or check or X symbol. EEG activity was measured and then a 2x2x3x4 ANOVA (stimulus type x feedback valence x feedback type x electrode site) was performed on FRN values. A difference was seen between positive and negative feedback curves, confirming the presence of an FRN. Voice feedback showed the expected pattern of FRN, while face feedback did not show a significant difference and symbol feedback unexpectedly showed the opposite effect.