The hard fall effect: high working memory capacity leads to a higher, but less robust short-term memory performance

Area of Science:

• Cognitive Psychology
• Neuroscience

Background:

• Individuals with high working memory capacity generally excel at cognitive tasks.
• However, a paradoxical decline in performance, termed the "hard fall effect," is observed when high-capacity individuals perform dual tasks.

Purpose of the Study:

• To investigate the existence of the "hard fall effect" in a short-term memory task.
• To explore the hypothesis that this effect stems from high-capacity individuals employing efficient facilitative strategies under simple task conditions.

Main Methods:

• Ninety-eight participants completed a spatial short-term memory task.
• The task was administered under both simple and dual-task conditions.
• Stimuli presentation times were manipulated to either permit or restrict the use of complex facilitative strategies.

Main Results:

• High working memory span participants outperformed low spans exclusively under simple task conditions.
• This advantage for high spans was observed only when stimuli presentation times facilitated the use of complex strategies.
• The "hard fall effect" was evident in the short-term memory task.

Conclusions:

• The
• hard fall effect
• is present in short-term memory tasks.
• Individual differences in the utilization of cognitive strategies may underlie this phenomenon.