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Effect of trust on social conformity in Recognition Memory

PROJECT PResentation. Mentor: Prof. Amitabh Mukherjee. Effect of trust on social conformity in Recognition Memory. Pranjal Saxena Y9424. OVERVIEW. Social Conformity: Act of matching attitudes, beliefs, and behaviours. Why Recognition memory? Relevant in Eyewitness testimony.

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Effect of trust on social conformity in Recognition Memory

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  1. PROJECT PResentation Mentor: Prof. Amitabh Mukherjee Effect of trust on social conformity in Recognition Memory Pranjal Saxena Y9424 SE 367: Introduction to Cognitive Science

  2. OVERVIEW • Social Conformity: • Act of matching attitudes, beliefs, and behaviours. • Why Recognition memory? • Relevant in Eyewitness testimony. • Peer influence altering memories of incidents. • Friends and Strangers: • Conformity is larger among friends than strangers. • Exception : McKelvey, Wendy; Kerr, Nancy H. (1988) SE 367: Introduction to Cognitive Science

  3. OBJECTIVES SE 367: Introduction to Cognitive Science

  4. EXPERIMENT • Database of 130 images: onemillionpeople.com • A trial: 4 confederates ,1 participant. • Participant convinced to be a part of a “memory test”. • Conf. have doctored responses written on their sheets. Image cited from "Graded effects of Social Conformity on Recognition memory" • Encoding :50 images shown with a gap of 2 seconds. • Retrieval: • Another set of images. Part. Identify new and old images. • Part. Respond loudly after the Conf. • 10 trials each for strangers and friends cases. • Hits(no of correct recognitions of old) • false alarms(no of false recognition of new items) Plotted Separately SE 367: Introduction to Cognitive Science

  5. RESULTS 1> Experiment1 : Setting a base case: Establishing that memory is better than chance and evaluating memory efficiency in absence of conformity. SE 367: Introduction to Cognitive Science

  6. 2> Experiment2 : Effects of conformity STRANGERS FRIENDS No of correct confederates COMPARISON: DISTRIBUTION IN OLD AND NEW SE 367: Introduction to Cognitive Science

  7. DISCUSSION • Conformity effects well established: • Correct responses of the participant decreased as No. of incorrect Conf. Increase from 0 to 4. • Coherence with study of Axmacher[1]. • Conformity stronger with friends than strangers: • This case being Informational Influence(conforming to give accurate information) • McKelvey, Wendy; Kerr, Nancy H. (1988): opposite results • Case being Normative Influence • Conforming to be acceptable and liked by a group. • Conformity effects larger on Hits than False Alarms: • More likely to forget old memories rather than form new memories. • Replication of Axmacher’s results in short version. • Diverts from previous studies. SE 367: Introduction to Cognitive Science

  8. FURTHER STUDIES SE 367: Introduction to Cognitive Science

  9. REFERENCES [1]: Axmacher N, Gossen A, Elger CE, Fell J (2010) Graded Effects of Social Conformity on Recognition Memory. PLoS ONE 5(2): e9270. doi:10.1371/journal.pone.0009270 [2]: http://en.wikipedia.org/wiki/Conformity [3]: Schneider DM, Watkins MJ (1996) Response conformity in recognition testing. Psychon Bull Rev 3: 481-485.  [4]: Reysen MB (2005) The effects of conformity on recognition judgements. Memory 13: 87-94. [5]: McKelvey, Wendy; Kerr, Nancy H. (1988). "Differences in conformity among friends and strangers". Psychological Reports 62 (3): 759-62 THANK YOU!! SE 367: Introduction to Cognitive Science

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