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Brain Imaging Investigation of the Memory-Enhancing Effect of Emotion
15:57

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Published on: May 4, 2011

The role of colour in implicit and explicit memory performance.

David Vernon1, Toby J Lloyd-Jones

  • 1Department of Cognitive Neuroscience and Behaviour, Imperial College, Charing Cross Campus, St Dunstan's Road, London W6 8RF, UK. d.vernon@ic.ac.uk

The Quarterly Journal of Experimental Psychology. A, Human Experimental Psychology
|July 30, 2003
PubMed
Summary

Color changes between study and test impact memory. While object recognition is less efficient after color shifts, implicit memory (priming) for object naming remains unaffected.

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Area of Science:

  • Cognitive Psychology
  • Visual Perception
  • Memory Research

Background:

  • Color is a significant attribute of natural objects.
  • Understanding how color influences memory and object recognition is crucial for cognitive science.

Purpose of the Study:

  • To investigate the impact of color transformation on implicit and explicit memory.
  • To examine how changes in color between study and test phases affect memory for natural objects.

Main Methods:

  • Two experiments were conducted using diagnostically colored natural objects.
  • Implicit memory was measured using repetition priming for picture naming and colored-object decision tasks.
  • Explicit memory was assessed through conscious recognition tasks, with and without color information.

Main Results:

  • Faster response times were observed for correctly colored objects compared to black-and-white or incorrectly colored objects.
  • Color transformation did not affect priming for picture naming.
  • Priming for colored-object decisions was observed only when object colors remained consistent between study and test.
  • Conscious recognition efficiency decreased when color was transformed between study and test phases.

Conclusions:

  • Object representations exhibit flexibility, influencing both priming and recognition.
  • Color consistency is important for robust object recognition, particularly in explicit memory tasks.
  • Implicit memory, especially for object naming, appears less sensitive to color transformations than explicit memory.