Dynamic visual noise reduces confidence in short-term memory for visual information

Eva Kemps, Jackie Andrade

    Research output: Contribution to journalArticlepeer-review

    13 Citations (Scopus)

    Abstract

    Previous research has shown effects of the visual interference technique, dynamic visual noise (DVN), on visual imagery, but not on visual short-Term memory, unless retention of precise visual detail is required. This study tested the prediction that DVN does also affect retention of gross visual information, specifically by reducing confidence. Participants performed a matrix pattern memory task with three retention interval interference conditions (DVN, static visual noise and no interference control) that varied from trial to trial. At recall, participants indicated whether or not they were sure of their responses. As in previous research, DVN did not impair recall accuracy or latency on the task, but it did reduce recall confidence relative to static visual noise and no interference. We conclude that DVN does distort visual representations in short-Term memory, but standard coarse-grained recall measures are insensitive to these distortions.

    Original languageEnglish
    Pages (from-to)183-188
    Number of pages6
    JournalCognitive Processing
    Volume13
    Issue number2
    DOIs
    Publication statusPublished - May 2012

    Keywords

    • Confidence
    • Dynamic visual noise
    • Matrix pattern memory task
    • Visual short-Term memory
    • Working memory

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