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Noise effects in free recall with different orienting tasks
British Journal of Psychology (London, England : 1953)
|November 1, 1982
Summary
White noise impacts word recall differently based on task instructions. High-intensity noise aids recall for unorganized word lists without specific tasks but hinders it with semantic tasks.
Area of Science:
- Cognitive Psychology
- Auditory Perception
- Memory Studies
Background:
- Understanding how environmental factors like noise affect cognitive processes is crucial.
- Previous research suggests noise can impair memory performance, but effects vary with task demands.
Purpose of the Study:
- To investigate the influence of white noise intensity and orienting tasks on word list recall.
- To determine if noise interacts with list type (associated vs. non-associated words) and task instructions.
Main Methods:
- Participants were presented with either associated or non-associated word lists.
- Two experiments manipulated white noise levels (65 dBC vs. 85 dBC) and orienting tasks (none, semantic, or physical).
- Recall performance was measured under different noise and task conditions.
Main Results:
- A significant three-way interaction between noise, list type, and orienting task was observed.
- High-intensity noise improved recall for non-associated lists without orienting tasks but impaired it with semantic orienting tasks.
- Noise had minimal effect on associated lists without orienting tasks, but improved performance with semantic orienting.
Conclusions:
- Noise appears to reinforce the dominant rehearsal strategy; maintenance rehearsal is used in quiet or with non-associated lists, while noise aids alternative strategies induced by orienting tasks.
- Findings suggest noise effects on memory are contingent on the interplay between environmental stimuli and cognitive strategies employed.