Bridging the gap: transitive associations between items presented in similar temporal contexts

Area of Science:

• Cognitive Psychology
• Neuroscience
• Memory Research

Background:

• Episodic memory often shows a contiguity effect, where items close in time are better associated.
• The temporal context model (TCM) proposes this effect stems from shared temporal context, not proximity itself.

Purpose of the Study:

• To investigate whether associations in episodic memory depend on temporal proximity or shared temporal context.
• To test the predictions of the temporal context model (TCM) against alternative models.

Main Methods:

• Utilized double-function lists of paired associates (e.g., A-B, B-C) in a randomized order.
• Examined associations between items with similar temporal contexts but not necessarily close proximity.
• Analyzed within-pair and across-pair associations for asymmetry and decay patterns.

Main Results:

• Across-pair associations decreased with list distance, suggesting memory integration.
• Within-pair associations demonstrated forward asymmetry, while across-pair associations did not.
• The temporal context model (TCM) provided a strong fit to the observed data.

Conclusions:

• Contiguity effects in episodic memory arise from binding items to a changing temporal context, not direct item-to-item associations.
• Findings challenge chaining models and support the temporal context model's explanation of memory formation.