Sequential versus simultaneous presentation of memoranda in verbal working memory: (How) does it matter?

Area of Science:

• Cognitive Psychology
• Neuroscience
• Human Memory

Background:

• Verbal working memory (WM) is crucial for cognitive tasks.
• Information can be presented sequentially (oral) or simultaneously (written).
• The impact of presentation mode on WM processing is underexplored.

Purpose of the Study:

• To investigate the effects of sequential versus simultaneous presentation on verbal WM.
• To analyze serial position curves, transposition gradients, and error types.

Main Methods:

• Immediate serial recall tasks were used.
• Word lists were presented sequentially and simultaneously.
• Recall performance, serial position curves, and error patterns were analyzed.

Main Results:

• Simultaneous presentation yielded higher overall recall performance than sequential presentation.
• A significant advantage for simultaneous presentation was observed for end-of-list items.
• Sequential presentation resulted in more transposition errors (non-adjacent) and omission errors (start-of-list).

Conclusions:

• Presentation mode significantly impacts verbal working memory performance.
• Simultaneous encoding of sequential information offers an advantage over sequential encoding.
• Differences in encoding and item refreshing likely explain the observed performance variations.