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Related Experiment Video

Updated: May 27, 2026

Long-term Sensory Conflict in Freely Behaving Mice

Long-term Sensory Conflict in Freely Behaving Mice

Published on: February 20, 2019

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

Eva Kemps¹, Jackie Andrade

¹School of Psychology, Flinders University, GPO Box 2100, Adelaide, SA, 5001, Australia. Eva.Kemps@flinders.edu.au

Cognitive Processing

|November 29, 2011

Summary

Dynamic visual noise (DVN) reduces confidence in visual short-term memory, even for gross visual information. This suggests DVN distorts visual representations, though recall accuracy remains unaffected.

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Area of Science:

Cognitive Psychology
Neuroscience
Visual Perception

Background:

Dynamic visual noise (DVN) is known to affect visual imagery.
Previous studies indicated DVN does not impact visual short-term memory (VSTM) unless precise details are retained.

Purpose of the Study:

To investigate if DVN affects retention of gross visual information in VSTM.
To determine if DVN reduces confidence in memory recall for less precise visual details.

Main Methods:

Participants completed a matrix pattern memory task.
Three interference conditions were used: DVN, static visual noise, and no interference.
Recall confidence was assessed alongside accuracy and latency.

Main Results:

DVN did not impair recall accuracy or response latency.
DVN significantly reduced recall confidence compared to static noise and no interference conditions.
This indicates a subtle effect of DVN on visual representations.

Conclusions:

DVN distorts visual representations within VSTM, even for general visual information.
Standard recall measures (accuracy, latency) are insufficient to detect these DVN-induced distortions.
Confidence ratings are more sensitive to DVN's impact on VSTM.